DeepSeek
Reporting and context on DeepSeek, with a closer look at the decisions and developments that matter.
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At a glance
DeepSeek develops AI language and reasoning models. Coverage follows its research, open model releases and their implications for the AI industry.
- Focus
- Language models; reasoning; open model releases
- Reference
- DeepSeek
Reviewed 19 October 2026. Dates retain the precision of the source; retrospective disclosures are identified in the event. No verified public ARR or recognized-revenue series was established in this review. Model-training cost is not company revenue.
Company milestones
Revenue, funding, product launches and major company events, newest first. Expand the earlier milestones for more history.
Opens its in-house Search and Fetch API
DeepSeek adds developer access to its search engine, alongside a V4.1 Flash update.
Source: DeepSeekReleases V4.1 Flash
The new architecture adds native visual understanding and updates the commercial API model lineup.
Source: DeepSeek
Show earlier milestonesHide earlier milestones2026–2023 · 7 milestones
Earlier revenue, financing and company milestones.
V4 Pro reaches general availability
The release reaches app, web and API, adding native Responses API support.
Source: DeepSeekV4 Flash enters public beta
The API model advances agent capabilities ahead of V4 Pro’s general release.
Source: DeepSeekIntroduces the V4 family
V4 Pro and Flash enter the API; legacy model names begin a migration period.
Source: DeepSeekReleases V3.2
Thinking and non-thinking API modes move to a shared upgraded model generation.
Source: DeepSeekReleases R1 reasoning models
R1 and distilled models expand open-weight reasoning access under MIT licensing.
Source: DeepSeekReleases DeepSeek V3
The model upgrades the commercial chat API and establishes the base for subsequent reasoning releases.
Source: DeepSeekDeepSeek is founded
The Hangzhou-based research company begins developing language models, preceding its V3 and R1 releases.
Source: DeepSeek company profile
The latest on DeepSeek
Newest firstRelated reporting
Briefs, articles and relevant sections, newest first. Explore older coverage below.
More coverage
You Are Banned
DeepSeek accused of using Google's Gemini to train its latest model.
DeepSeek Might Have Used Google's Gemini To Train Its Newest Model
In the ever-evolving world of artificial intelligence, where breakthroughs are as common as coffee breaks, Chinese AI lab DeepSeek has dropped a bombshell—or rather, a
Less Is More
DeepSeek R1 Model Update: A "Minor" Upgrade with Major Implications
DeepSeek R1 Model Update: A "Minor" Upgrade with Major Implications
DeepSeek, the ambitious Chinese AI startup, has recently rolled out a "minor" upgrade to its R1 reasoning AI model, officially dubbed the DeepSeek-R1-0528. But
A Big Issue: As AI Improves, Its Hallucinations Increase
Artificial Intelligence (AI) is at a crossroads. The past two years have seen an explosion in the capabilities of generative AI models, especially large language models
New Breakthrough of DeepSeek
Nvidia's New Tool: Transforming 3D Scenes into AI-Generated Images
DeepSeek-Prover-V2: A New Era in Automated Mathematical Reasoning
In the rapidly evolving landscape of artificial intelligence, the ability to automate formal mathematical reasoning stands as a formidable challenge. The release of DeepSeek-Prover-V2 in 2025
DeepSeek Might Be Banned
OpenAI Unveils o3 and o4-mini: Advanced AI Models Capable of Visual Reasoning
Trump Administration Weighing Ban Against China’s DeepSeek
The Trump administration is reportedly considering imposing significant restrictions on the Chinese artificial intelligence (AI) startup DeepSeek, citing national security concerns. These potential measures include barring
