Author
@deepseek_ai
By and about @deepseek_ai
DeepSeek open-sources DeepInfer, the inference framework behind V4.1-Flash
DeepSeek released DeepInfer, the in-house inference framework that serves DeepSeek-V4.1-Flash in production, as open source. It says the stack delivers high throughput and low latency, and it hopes to help the community lower compute costs and energy use.
newsDeepSeek V4.1-Flash-1017 improves the performance–cost frontier with stronger agents and cheaper tasks
DeepSeek V4.1-Flash-1017 improves reasoning, coding, agents, and vision while reducing task runtime and output length. Token prices stay unchanged as task efficiency improves.
blogAI Socratic September 2026 — Jev AI Classifiers, Astra, and Pace the Frontier
Astra ships and Amodei asks everyone to slow down. The Hugging Face postmortem, Fable 5.1, Fermat in Lean, the distillation report, the China front, Nvidia–Hugging Face, Cursor's swarm, robotics and hardware — plus Jev's classifier comeback and the papers on how agents actually fail.
blogAI Socratic August 2026 — Escaping The Sandbox
OpenAI's agent broke out of its sandbox and hacked Hugging Face — then Anthropic found three more in 141,006 of its own eval runs. Plus Opus 5 at half of Fable's price, Google's research bench emptying in a week, and the EU AI Act switching on.
newsDeepSeek-V4-Flash reshapes the Arena cost-performance frontier
DeepSeek-V4-Flash (High) achieves the best cost-performance ratio on Agent Arena at $0.024 per task and tops Frontend Code Arena's value curve with a 1586 score at $0.14/$0.28 per MToken.
newsDeepSeek opens the V4 Flash API, and its agent scores jump
DeepSeek's V4-Flash API enters public beta with a new 0731 checkpoint that beats GLM-5.2 on every shared agent benchmark and comes within two points of Claude Opus 4.8 on terminal work.
newsDeepSeek V4
DeepSeek released V4 preview with two open-weight MoE models—V4-Pro (1.6T params, 49B active) and V4-Flash (284B total, 13B active)—featuring hybrid attention for practical 1M-token context and competitive API pricing.
blogAI Socratic May 2026 — The Selfish Gen AI
DeepSeek v4, GPT 5.5, Trump x Xi meeting, Richard Dawkins, Estimating model sizes