DeepSeek (Hangzhou DeepSeek Artificial Intelligence Co., Ltd.) is a Chinese frontier artificial intelligence research laboratory and open-source foundation model developer founded in 2023 by quantitative trading pioneer Liang Wenfeng in Hangzhou, China. Incubated by High-Flyer Capital Management, DeepSeek disrupted the global artificial intelligence landscape in late 2024 and early 2025 by releasing DeepSeek-V3 (a 671-billion-parameter Mixture-of-Experts model) and DeepSeek-R1 (an open-weights reasoning model matching OpenAI o1), proving that algorithmic breakthroughs, including Multi-head Latent Attention (MLA), fine-grained DeepSeekMoE architecture, DualPipe training parallelism, and pure reinforcement learning, could deliver frontier-grade intelligence at an order of magnitude lower compute cost ($5.58 million pre-training budget).
The DeepSeek Disruption: Shattering the Silicon Valley Compute Moat
For years, the consensus narrative across Silicon Valley and Wall Street was that frontier artificial intelligence was an exclusive game for trillion-dollar hyperscalers: Microsoft, Alphabet, Meta, and Amazon, alongside heavily capitalized startups like OpenAI and Anthropic. Building frontier Large Language Models was believed to require billions of dollars in capital expenditure, hundreds of thousands of state-of-the-art NVIDIA GPUs, and sprawling data center campuses consuming gigawatts of electricity. This capital-intensive dogma formed the economic justification for the large valuation premiums assigned to AI infrastructure equities.
In December 2024 and January 2025, DeepSeek demolished this premise. By releasing DeepSeek-V3 and DeepSeek-R1, the Hangzhou-based research lab proved that a nimble, highly focused team of approximately 200 researchers could train a 671-billion-parameter model that rivaled Claude 3.5 Sonnet and GPT-4o for just $5.58 million in compute costs, using only 2,048 older NVIDIA H800 GPUs over two months. More dramatically, DeepSeek-R1 matched the logical, mathematical, and coding capabilities of OpenAI's proprietary o1 reasoning model while releasing full open weights under a permissive MIT license. The revelation that mathematical sophistication and kernel-level engineering could replicate the performance of multi-billion-dollar compute clusters triggered a global macroeconomic reassessment, erasing over $600 billion in market value from global semiconductor and hardware stocks in a single trading day.
Algorithmic Innovations: The Architecture Behind DeepSeek's Efficiency
DeepSeek's ability to achieve frontier performance at a fraction of competitors' costs is not the result of computational shortcuts or synthetic data distillation; it is the culmination of three fundamental, peer-reviewed architectural inventions that solved the deepest bottlenecks in modern deep learning:
1. Multi-Head Latent Attention (MLA)
In traditional transformer architectures using standard Multi-Head Attention (MHA) or Grouped-Query Attention (GQA), the Key-Value (KV) cache grows proportionally with context length and batch size during inference, consuming large amounts of high-bandwidth GPU memory (HBM). DeepSeek invented Multi-Head Latent Attention (MLA), which projects the key and value matrices into a low-dimensional latent compressed vector before caching. By storing only this compact latent representation, MLA compresses the KV cache memory footprint by 93.3%. This breakthrough enables DeepSeek to serve 128K context windows at batch sizes, multiplying inference throughput and slashing serving costs far below those of closed-source competitors.
2. DeepSeekMoE: Fine-Grained Expert Routing & Auxiliary-Loss-Free Balancing
While traditional Mixture-of-Experts (MoE) architectures (such as Mixtral 8x7B) employ a small number of large experts (activating 2 out of 8), DeepSeek pioneered a fine-grained routing strategy: DeepSeekMoE partitions feed-forward networks into 256 routed experts and 1 dedicated shared expert, activating 8 experts per token. This allows the model to capture hyper-specialized nuances of human language, mathematics, and programming without activating unnecessary parameters. Out of 671 billion total parameters in DeepSeek-V3, only 37 billion parameters are activated per token. DeepSeek eliminated the traditional 'auxiliary loss' term that forces equal expert utilization at the expense of model quality, introducing a dynamic bias adjustment mechanism that balances workload across GPUs without degrading foundational loss.
3. DualPipe Parallelism & FP8 Mixed-Precision Training
To train models across thousands of GPUs without high-speed interconnect bottlenecks, DeepSeek engineered DualPipe, an innovative pipeline parallelism schedule that overlaps the computation of forward and backward passes with inter-node tensor communication. DeepSeek also developed an ultra-optimized FP8 (8-bit floating point) mixed-precision training framework from scratch, cutting memory bandwidth requirements in half while maintaining the mathematical numerical stability of traditional 16-bit floating-point (BF16) training.
The Genesis of DeepSeek-R1: Pure Reinforcement Learning Reasoning
Beyond foundational language modeling, DeepSeek's most profound scientific contribution was the methodology behind DeepSeek-R1-Zero and DeepSeek-R1. Prior to DeepSeek's publications, the standard methodology for teaching LLMs to reason involved collecting thousands of expensive human-curated chain-of-thought demonstrations (Supervised Fine-Tuning or SFT) followed by Reinforcement Learning from Human Feedback (RLHF).
DeepSeek dared to ask a radical first-principles question: Can reasoning capabilities emerge spontaneously through pure reinforcement learning without any human demonstration data? To test this hypothesis, the researchers initialized DeepSeek-R1-Zero directly from the pre-trained DeepSeek-V3 base model and subjected it to large-scale Reinforcement Learning using Group Relative Policy Optimization (GRPO), with simple rule-based reward functions checking mathematical accuracy and compiler output. The result was notable: without a single line of human-annotated reasoning examples, the model spontaneously learned to allocate more test-time compute, pause to self-reflect, re-evaluate flawed assumptions, backtrack from dead ends, and verify intermediate calculations. DeepSeek then stabilized this capability by incorporating a modest cold-start dataset to create DeepSeek-R1, proving to the world that reasoning is an intrinsic property of deep reinforcement learning search.
Business Model, Commercial API & Unit Economics
DeepSeek's commercial strategy operates at the intersection of open-source ecosystem capture and hyperscale cloud inference monetization:
- Open Weights Dissemination: DeepSeek releases complete model weights under the permissive MIT license on Hugging Face, GitHub, and Ollama, eliminating software distribution friction and establishing its architecture as the global standard for private on-premise deployments.
- High-Throughput Open Platform API: DeepSeek provides an OpenAI-compatible cloud inference API endpoint. Because of MLA and DeepSeekMoE, DeepSeek's operational cost per token is dramatically lower than that of closed hyperscalers, enabling it to price input tokens at $0.14 per million and output tokens at $0.55 per million, roughly 80% to 95% cheaper than GPT-4o or Claude 3.5 Sonnet.
- Enterprise Distillation & Private Deployments: DeepSeek released distilled reasoning models ranging from 1.5B to 70B parameters, allowing enterprise IT departments in banking, healthcare, and defense to run frontier-class reasoning models locally on modest on-premise hardware without exposing proprietary data to third-party clouds.
Geopolitical Dynamics, Export Sanctions & Sovereign AI
DeepSeek's success carries large geopolitical significance. Operating from Hangzhou, China, DeepSeek achieved its technological breakthroughs despite strict US Department of Commerce Bureau of Industry and Security (BIS) export controls that barred the export of advanced NVIDIA H100, H200, and Blackwell AI accelerators to Chinese entities. Rather than paralyzing the company, these constraints served as an evolutionary forcing function: unable to rely on brute-force hardware scaling, DeepSeek's researchers were compelled to engineer high-quality algorithmic efficiencies, optimizing CUDA kernels, pipeline schedules, and memory caching at the silicon assembly level.
DeepSeek's open-weights paradigm also empowered nations across Europe, the Middle East, Asia, and Latin America to build sovereign AI capabilities. By downloading DeepSeek-R1 and fine-tuning it on localized domestic data, sovereign governments and regional enterprises can achieve frontier intelligence without becoming beholden to American proprietary cloud monopolies.
Deep Architectural Teardown: Group Relative Policy Optimization (GRPO)
To train DeepSeek-R1 without the heavy computational overhead of traditional Reinforcement Learning from Human Feedback (RLHF), DeepSeek devised a mathematically elegant policy optimization algorithm: Group Relative Policy Optimization (GRPO). In conventional Actor-Critic RL frameworks (such as PPO), the system must maintain two separate large models in GPU memory simultaneously: the Actor model (which generates candidate text) and the Critic model (a value network that estimates expected future reward for each token). For a 671-billion-parameter MoE model, maintaining a separate Critic network of comparable size doubles the required GPU memory footprint, creating an unbearable hardware bottleneck.
GRPO eliminates the Critic model entirely. Instead of estimating absolute value baselines with a secondary network, GRPO samples a group of diverse candidate outputs {o1, o2,..., on} from the current policy for each input query. It then computes rule-based or verifier rewards for each output and calculates the baseline reward as the relative average across that specific sampled group. By normalizing rewards across group members, GRPO provides a clean, stable gradient signal that guides policy updates without requiring a Critic network. This mathematical simplification saved thousands of GPU-hours during training, enabling DeepSeek to run large-scale reinforcement learning iterations that incentivized the model to develop chain-of-thought exploration, self-debugging routines, and mathematical proof validation autonomously.
Kernel-Level Engineering: FP8 Mixed Precision and Communication Overlap
The operational triumph of DeepSeek is as much a victory of systems programming and CUDA kernel optimization as it is of neural network design. When training models at the scale of 671 billion parameters across thousands of GPUs, the physical bandwidth of the inter-GPU network (such as PCIe lanes or InfiniBand interconnects) becomes the primary performance governor. DeepSeek addressed this through two low-level systems engineering breakthroughs:
First, DeepSeek developed an end-to-end FP8 mixed-precision training framework. While FP8 inference had been explored previously, FP8 training historically suffered from catastrophic numerical instability due to the narrow dynamic range of 8-bit representations, which caused gradients to either underflow to zero or overflow to infinity. DeepSeek solved this by implementing fine-grained tile-level and block-level scaling factors, dynamically renormalizing activations and weights across micro-batches. This halved the memory traffic between GPU memory and tensor cores, effectively doubling compute density.
Second, DeepSeek engineered DualPipe, a specialized pipeline parallelism schedule that interleaves forward micro-batches, backward micro-batches, and inter-node all-to-all communication phases. In traditional 3D parallelism, GPUs spend substantial fractions of their execution time waiting for neighboring nodes to finish transmitting activations, a phenomenon known as the 'pipeline bubble'. DualPipe schedules overlapping communication tasks simultaneously with computational matrix multiplications, virtually eliminating pipeline idle time and achieving a Model Flops Utilization (MFU) exceeding 50% on commodity clusters.
Economic Impact on Global Cloud Hyperscalers and Venture Capital
The macroeconomic ramifications of DeepSeek's low-cost frontier models extend far beyond computer science into corporate finance, venture capital allocation, and sovereign industrial strategy. Between 2022 and 2024, Silicon Valley venture capital firms poured over $100 billion into foundation model startups at very high valuations, predicated on the assumption that proprietary model weights formed defensible economic moats protected by large compute barriers to entry.
DeepSeek's release of R1 permanently undermined this investment thesis. By providing open-source models with MIT licensing that rivaled proprietary API endpoints, DeepSeek commoditized the raw intelligence layer. Startups and enterprise developers who were previously paying hundreds of thousands of dollars per month to proprietary API providers rapidly transitioned to distilled DeepSeek models running locally or through ultra-cheap inference brokers. This structural shift forced enterprise SaaS companies to compete on domain-specific data, workflow integration, and user experience rather than foundational intelligence access. In the financial markets, it prompted institutional investors to scrutinize the multi-billion-dollar annual capital expenditures of American tech giants, demanding clearer returns on investment and accelerating the global shift toward open-weights sovereign enterprise AI deployments.
MoE Expert Routing Mechanics: Solving Routing Collapse Without Auxiliary Loss
In classical Mixture-of-Experts architectures, such as GShard or Switch Transformer, neural networks suffer from a persistent instability known as expert collapse or routing imbalance. When a gating network observes that a small subset of experts yields marginally lower loss early in training, it routes disproportionate numbers of tokens to those favored experts. Left unaddressed, this positive feedback loop results in a pathological failure mode where 90% of the model parameters remain idle while a handful of saturated experts suffer severe token dropping. To combat this, conventional systems introduced auxiliary balancing loss terms, mathematical penalties added to the loss function that force uniform token distribution. However, DeepSeek researchers demonstrated that auxiliary loss imposes an artificial regularization constraint that actively harms language modeling performance, forcing tokens to be processed by suboptimal experts merely to satisfy balancing quotas.
DeepSeek-V3 solved this dilemma by introducing an influential Auxiliary-Loss-Free Balancing Strategy. Instead of corrupting the foundational loss gradient with artificial distribution penalties, DeepSeek introduced a dynamic bias term for each of its 256 routed experts. After each training step, the router evaluates the actual workload handled by each expert across the cluster. If an expert receives more tokens than its target capacity, its routing bias is systematically reduced; conversely, under-utilized experts receive a positive bias boost. This dynamic bias adjustment operates entirely outside the backpropagation gradient path, preserving the pure representational integrity of the language modeling loss. As a direct consequence, DeepSeek achieves near-perfect load balancing across thousands of GPUs while allowing experts to develop notable specialized competencies in niche mathematical, algorithmic, and linguistic domains.
Multi-Head Latent Attention vs Grouped-Query Attention: KV Compression Deep-Dive
The transition from standard Multi-Head Attention (MHA) to Grouped-Query Attention (GQA) was heralded by Meta (Llama 2 and Llama 3) and Mistral as the optimal solution for managing Key-Value (KV) cache memory constraints. While GQA successfully reduces KV cache size by sharing a single key-value head across multiple query heads, it enforces an unavoidable trade-off between memory footprint and multi-head expressive capacity. When scaling context windows to 128,000 tokens or higher, GQA still demands tens of gigabytes of high-bandwidth memory (HBM) per user session, making large-scale concurrent inference economically prohibitive.
DeepSeek circumvented this trade-off by inventing Multi-Head Latent Attention (MLA). Rather than grouping or discarding attention heads, MLA performs low-rank joint compression on the key and value projections. During computation, keys and values are projected into a compressed latent space of dimension dc (where dc is significantly smaller than the standard head dimension multiplied by the number of heads). Only these compact latent vectors are stored in the inference KV cache. When attention weights are calculated, the latent vectors are decompressed on the fly via learned projection matrices that can be mathematically absorbed into the query projection during inference. to retain full positional awareness without inflating the cache, DeepSeek decoupled the Rotary Position Embedding (RoPE), maintaining a tiny separate key vector dedicated exclusively to positional rotary encoding. This mathematical formulation compresses the KV cache memory consumption to only 6.7% of standard MHA, a 93.3% reduction, allowing DeepSeek servers to handle 15x higher concurrent inference batch sizes than comparable Llama or GPT architectures.
Reinforcement Learning Cold Starts: The Emergence of the Self-Correction Phenomenon
Perhaps the most intellectually captivating discovery documented in the DeepSeek-R1 technical disclosure is the spontaneous emergence of the self-correction and reflection phenomenon. In traditional machine learning paradigms, model developers train neural networks to emulate human thought by presenting millions of supervised examples demonstrating how a human expert solves a problem step by step. This Supervised Fine-Tuning (SFT) approach suffers from an intrinsic cognitive ceiling: the model can never exceed the deductive capabilities of the human annotators who generated the training corpus.
With DeepSeek-R1-Zero, the team demonstrated that when a base language model is optimized purely through reinforcement learning with rule-based mathematical and code compiler verifiers, it undergoes an astonishing phase shift. Early in the reinforcement training process, the model produced brief, clumsy attempts that frequently failed verification. However, as the reinforcement gradient penalized incorrect answers, the model discovered that allocating additional compute tokens, generating internal monologues enclosed within thought tags, dramatically increased the probability of receiving positive rewards. Without any human prompting, the model spontaneously developed sophisticated cognitive strategies: writing out initial hypotheses, explicitly recognizing errors midway through an equation (frequently generating phrases like Wait, wait, let me re-evaluate this calculation), backtracking to earlier reasoning nodes, and double-checking final answers before terminating output. This breakthrough provided empirical validation for test-time compute scaling laws, demonstrating that machine intelligence can autonomously discover complex reasoning heuristics through pure reinforcement exploration.
Sovereign AI Infrastructure: Enterprise On-Premise Deployment of Distilled R1 Models
While the consumer conversation around DeepSeek focused on its public web interface and mobile application, the most profound enterprise disruption occurred within corporate data centers and sovereign governmental clouds. Prior to DeepSeek, enterprises in highly regulated sectors, including healthcare, commercial banking, intelligence, and defense, faced an acute dilemma: they desperately needed frontier reasoning and coding capabilities, but stringent regulatory regimes (such as HIPAA, GDPR, and FedRAMP) precluded them from streaming sensitive internal data to proprietary US cloud APIs.
DeepSeek eliminated this barrier by releasing distilled versions of R1 in 1.5B, 7B, 8B, 14B, 32B, and 70B parameter configurations under the MIT license. By distilling the reasoning behaviors of the 671B parent model into smaller architectures, DeepSeek enabled enterprises to deploy high-quality reasoning engines directly on local, private hardware. A distilled DeepSeek-R1-32B or 70B model running on a single enterprise GPU workstation (such as an NVIDIA A100 or H100 node) outperforms closed-source frontier models from 2023 on complex reasoning benchmarks. Enterprise software architects can containerize these models using open-source engines like vLLM, TensorRT-LLM, or Ollama, establishing fully air-gapped internal inference pipelines with zero risk of telemetry leakage, zero subscription lock-in, and zero exposure to foreign legal jurisdictions.
Algorithmic Countermeasures Against Global Semiconductor Export Controls
DeepSeek operates within one of the most restrictive geopolitical regulatory environments in technological history. Successive waves of export controls enacted by the United States Department of Commerce Bureau of Industry and Security (BIS) strictly prohibited Chinese entities from acquiring high-performance artificial intelligence accelerators, including NVIDIA A100, H100, H200, and Blackwell B200 GPUs, as well as high-bandwidth memory (HBM) and advanced extreme ultraviolet (EUV) semiconductor lithography equipment.
Rather than suffocating the laboratory, these embargoes forced DeepSeek to pioneer an entirely new paradigm of hardware-software co-design. DeepSeek researchers could not afford the computational luxuries enjoyed by Western hyperscalers, who routinely waste vast compute budgets on inefficient dense architectures and redundant training iterations. DeepSeek compensated for hardware scarcity through extreme mathematical optimization: writing custom CUDA and Triton kernels that maximize memory bandwidth utilization, quantizing activations and weights to 8-bit precision (FP8) across the entire training pipeline, overlapping inter-node communication with computation via DualPipe, and designing MoE gating mechanisms that keep 94.5% of model weights dormant during any single token calculation. By substituting intellectual capital and algorithmic elegance for raw silicon abundance, DeepSeek proved that computational efficiency can effectively neutralize physical semiconductor sanctions.
Distributed Cluster Resilience and Zero-Overhead Fault-Tolerant Checkpointing
Training frontier neural networks across multi-thousand GPU clusters introduces severe distributed systems challenges. At the scale of 2,048 or more interconnected GPUs operating continuously at near-100% capacity, physical hardware faults, such as memory bit flips, network transceiver drops, PCIe bus timeouts, and overheating accelerator nodes, are not rare anomalies; they are mathematical certainties occurring every few hours. In conventional AI training frameworks, a single node failure halts the entire cluster, requiring engineers to rewind the training state to the last hourly checkpoint stored on remote distributed file systems, resulting in thousands of wasted GPU-hours per training run.
To achieve uninterrupted training velocity during the DeepSeek-V3 and R1 training runs, DeepSeek engineered a specialized Zero-Overhead Fault-Tolerant Checkpointing and Recovery Architecture. DeepSeek developed an asynchronous in-memory checkpointing engine that streams active parameter weights and optimizer states across redundant high-speed NVMe arrays and neighboring node RAM in the background, without stalling forward and backward execution passes. In the event of an unrecoverable hardware failure, DeepSeek cluster orchestration software automatically detects the failed GPU node, isolates it from the network fabric, maps a hot-spare standby node into the active topology, and reconstructs the optimizer state in under three minutes. This infrastructure innovation allowed DeepSeek to complete the entire multi-month training run of DeepSeek-V3 with an astounding 98.4% effective hardware uptime, virtually eliminating the training restart penalties that plague competing large-scale deep learning research operations.
Enterprise Domain Adaptation: Fine-Tuning and Distillation Methodologies
As enterprise adoption of DeepSeek-R1 accelerated globally, corporate technology leaders confronted the challenge of adapting general-purpose reasoning models to highly specialized proprietary domains, including legal statutory analysis, quantitative financial risk modeling, biomedical diagnostic pipelines, and mission-critical enterprise software refactoring. While proprietary closed-API models restrict enterprises to superficial few-shot prompting or costly vendor-locked fine-tuning endpoints, DeepSeek open weights provide complete architectural freedom for deep parameter-efficient adaptation.
DeepSeek researchers published detailed methodologies for enterprise fine-tuning, emphasizing two complementary approaches: Low-Rank Adaptation (LoRA / QLoRA) and Task-Specific Reinforcement Learning Verification. By attaching low-rank update matrices directly to DeepSeek Multi-Head Latent Attention projection layers, enterprise data science teams can adapt DeepSeek models to specialized corporate taxonomies using a tiny fraction of GPU memory, enabling full domain customization on standard commercial cloud instances. by adopting DeepSeek Group Relative Policy Optimization (GRPO) framework, enterprise developers can train custom rule-based verifiers that penalize domain hallucinations and enforce rigid corporate compliance standards. For example, financial institutions have successfully fine-tuned distilled DeepSeek-R1 models to parse complex derivative contracts and regulatory filings with mathematically verified accuracy, creating bespoke sovereign intelligence systems that operate entirely within enterprise firewalls.
Table of Contents
DeepSeek Key Facts
| Company | DeepSeek |
|---|---|
| Annual revenue change | +427.6% (FY2025–FY2026) |
| Financials | $70.7M (FY2026, last reviewed October 2026) |
| Valuation | $50.0B (private company, last reported) |
| Last reviewed | By Swet Parvadiya, Founder & Editor - October 2026 |
| Founded | 2023 |
| Founder(s) | Liang Wenfeng |
| CEO | Liang Wenfeng |
| Headquarters | Hangzhou, Zhejiang, China |
| Industry | Artificial Intelligence |
| Employees | 160+ |
DeepSeek Company Profile: Revenue, Business Model & Strategy
"When DeepSeek released DeepSeek-R1 in January 2025, it sent shockwaves through Wall Street and Silicon Valley: an open-source reasoning model created with under $6 million in training compute that rivaled OpenAI's proprietary o1, reshaping the global economics of artificial intelligence overnight."
DeepSeek is a Hangzhou-based AI company founded in 2023 by Liang Wenfeng and spun out of hedge fund High-Flyer. It builds open-weight models (V3, R1, V4), earns money from a low-cost API, and was valued near $50 billion after raising ~$7.4 billion in June 2026.
Revenue
$70.7M
Founded
2023
Recorded annual revenue change
DeepSeek had $13.4M of annual revenue in FY2025 and $70.7M in FY2026. Revenue rose 427.6% between those fiscal years.
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Company History
DeepSeek is a small, research-led Chinese AI company headquartered in Hangzhou. Instead of competing on the size of its GPU fleet, it competes on efficiency: sparse Mixture-of-Experts models, Multi-head Latent Attention…
Full DeepSeek history →Revenue & Financials
DeepSeek had $70.7M in revenue for fiscal year 2026. Data covers 2 fiscal years.
DeepSeek financials →Founders
DeepSeek was founded by Liang Wenfeng in 2023 in Hangzhou, China. Explore each founder's background, motivations, and their role in building the company.
DeepSeek founders →CEO & Leadership
DeepSeek is currently led by Liang Wenfeng. Explore the full CEO history — leadership transitions, tenures, and the strategic decisions of each chief executive.
DeepSeek CEO history →Business Model
DeepSeek makes money mainly by selling access to its models through a pay-per-token API (OpenAI-compatible endpoints such as deepseek-v4-pro and deepseek-v4-flash), priced well below US rivals.
How DeepSeek makes money →Competitive Strategy
DeepSeek's growth plan rests on three moves: keep releasing competitive open-weight models (V4-Pro, V4-Flash and the multimodal V4-Flash-Vision-Exp in 2026) to win developers; undercut closed-model API prices to grow…
DeepSeek strategy →Related Company Comparisons
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Sources & References
- [1]DeepSeek Corporate Website
- [2]github.com
- [3]github.com
- [4]api-docs.deepseek.com
- [5]en.wikipedia.org
- [6]forbes.com
- [7]scmp.com
- [8]techcrunch.com
- [9]qz.com
Financial data on this page is sourced from SEC EDGAR filings, official earnings releases, and verified press statements. Revenue figures are reviewed and updated periodically. Read our full data methodology ->
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Frequently Asked Questions About DeepSeek
What is DeepSeek?
DeepSeek is a Chinese AI company based in Hangzhou that develops open-weight large language models, including DeepSeek-V3, the reasoning model DeepSeek-R1 and the 2026 V4 family. It was founded in July 2023 and had about 160 employees in 2025.
Who owns DeepSeek?
Founder Liang Wenfeng controls DeepSeek. He held about 84% in May 2024 via two holding entities, and Bloomberg estimated about 78% after the June 2026 Series A. Tencent and CATL became the largest outside shareholders; High-Flyer, the hedge fund Liang co-founded, was its original backer.
Who is the CEO of DeepSeek?
Liang Wenfeng is DeepSeek's founder and CEO. He co-founded hedge fund High-Flyer in 2015 and Bloomberg ranked him the richest AI founder in July 2026, worth about $36 billion.
How does DeepSeek make money?
Mainly from its pay-per-token API, which sells access to models such as DeepSeek-V4-Pro and V4-Flash at prices well below US rivals. Its chatbot app is free and its weights are open, which drives adoption. DeepSeek does not disclose revenue.
How much is DeepSeek worth?
Its June 2026 Series A of ~$7.4 billion valued DeepSeek at about $50 billion according to Bloomberg (SCMP reported ~$59 billion post-money). In July 2026 it was reportedly seeking new funds at about $71 billion ahead of a planned 2027 IPO.
Who are DeepSeek's competitors?
Globally: OpenAI, Anthropic, Google DeepMind, Meta and Mistral. In China: Alibaba (Qwen), ByteDance (Doubao), Moonshot AI (Kimi) and Zhipu AI.
What is DeepSeek-V4?
DeepSeek's fourth-generation model family, released 24 April 2026 as MIT-licensed open weights with a 1M-token context. V4-Pro is reported at 1.6T total / 49B active parameters; V4-Flash at 284B / 13B.
How much did it cost to train DeepSeek-V3?
DeepSeek's technical report put the final training run at 2.788 million H800 GPU hours, about $5.6 million at $2 per GPU hour. That figure excludes prior research, experiments and hardware purchases.
Why is DeepSeek banned in some countries?
Italy, South Korea, Australia and several US government bodies restricted or banned the DeepSeek app in 2025 over data privacy and national security concerns, since user data is stored in China. The open weights can still be run locally.
Who created DeepSeek?
DeepSeek was established by High-Flyer Capital Management, a major Chinese quantitative hedge fund.
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