DeepSeek AI releases & news
Every DeepSeek AI release AI/TLDR has verified from a primary source: 19 so far, mostly 9 models, 4 tools and 2 repos. Latest: DeepInfer — DeepSeek open-sources the inference engine behind its API (2026-10-20).
19 releases tracked · www.deepseek.com
- DeepInfer — DeepSeek open-sources the inference engine behind its API
DeepSeek publishes the high-performance engine that serves its own models, starting with offline inference for V4.1 Flash.
- DeepSeek Search and Fetch API — web search for agents at $0.75 per 1,000 calls
DeepSeek now sells the web search behind its own chat app as a plain API for agents and RAG apps.
- DeepSeek V4.1 Flash 1017 — an in-place upgrade with stronger agent scores
DeepSeek swaps a better-trained checkpoint into deepseek-flash: higher agent and coding scores, shorter outputs, same price.
- DeepSeek Harness Desktop — the open agent harness becomes a Mac and Windows app
DeepSeek's plugin-based agent harness now installs like a normal app on Mac and Windows.
- DeepSeek V4.1 Flash report — the KV cache drops to 890 bytes a token
The paper behind DeepSeek V4.1 Flash: how a 552B model keeps only 890 bytes of cache per token.
- DeepSeek Recipe — the official prompt encoder for V4 and V4.1
DeepSeek's own library for turning API requests into V4 and V4.1 prompts, and streamed output back into responses.
- DeepSeek V4.1 Flash — a 552B open-weight rebuild with 1M context
DeepSeek's smallest new-architecture model is now generally available with MIT open weights, a 1M-token context and top agentic scores.
- DeepSeek-V4-Flash-Vision-Exp weights go public — 305B multimodal MoE under MIT
DeepSeek's first multimodal V4 model leaves API-only preview — 305B weights, MIT license, and inference code on Hugging Face.
- DeepSeek V4-Flash-Vision-Exp — an experimental V4 model that reads images
An experimental DeepSeek model that adds image understanding to the V4-Flash line, at V4-Flash prices.
- DeepSeek Harness — open-source agent framework built entirely from plugins
An MIT-licensed agent framework from DeepSeek where models, tools, sandboxes and even the interface are swappable plugins.
- DeepSeek raises V4 API prices — output costs more than double from August 16
DeepSeek ends its flat, ultra-cheap API rates and moves the V4 models to time-of-day pricing.
- DeepSeek V4 Pro 0813 — the 1.6T flagship leaves preview
DeepSeek's 1.6-trillion-parameter flagship becomes a stable GA build after nearly four months in preview.
- DeepSeek V4-Flash goes official — 0731 hits 82.7 on Terminal Bench 2.1
DeepSeek graduates V4-Flash from preview to official with a re-post-trained checkpoint tuned for agents.
- DeepSeek retires deepseek-chat and deepseek-reasoner — API aliases die today
DeepSeek's legacy API aliases go dark at 15:59 UTC — migrate apps to V4-Flash or V4-Pro before the cutoff.
- DeepSeek V4 gets peak-hour pricing — API doubles 9am–12pm and 2pm–6pm Beijing time
First large LLM API to introduce time-of-day pricing.
- DSpark + DeepSpec — DeepSeek opens its speculative decoding stack
DeepSeek shipped a free codebase for training speculative-decoding drafters, plus DSpark drafters bolted onto V4-Pro and V4-Flash.
- DeepSeek Makes Its 75% V4-Pro API Discount Permanent — Input Stays at $0.435 per Million Tokens, Output at $0.87, a Quarter of the Original Sticker Rate
DeepSeek makes its 75%-off V4-Pro API pricing permanent instead of letting the promo expire.
- DeepSeek in Talks at $45B Valuation — China's 'Big Fund' Leading First Major Fundraise
FT and Bloomberg report Beijing's chip fund is leading talks that would value DeepSeek at ~$45B in its first major outside fundraise.
- DeepSeek V4 — 1.6T Open-Weights MoE Tops LiveCodeBench with MIT License
DeepSeek's new open-weights flagship: two MIT-licensed MoE models with 1M-token context and top-tier coding performance released today.