DeepSeek Timeline: Every Model Release and Update

DeepSeek is a Hangzhou-based AI lab known for open-weight models and low-cost APIs. This page collects every Jiufeng news entry about DeepSeek.

Compiled automatically from Jiufeng AI News, newest first. Open an entry for the full write-up and sources.

59 entriesLast updated: November 3, 2026

November 2026

  1. HarnessSQL uses DeepSeek Harness to lift an 8B model to 45.2% on Spider 2.0-SQLite

    HKUST trained small models inside DeepSeek Harness and nearly tripled a Text-to-SQL agent's score.

  2. DeepSeek web and API partially down, with V4 Pro and V4.1 Flash affected

    DeepSeek's official status page reported a partial outage on the afternoon of November 3.

  3. DeepSeek Harness team describes a Super-agent architecture already used internally for engineering work

    DeepSeek wants agents that stay online across sessions and run tasks in parallel; an internal instance already spots bugs in group chats and opens PRs.

October 2026

  1. DeepSeek V5 placeholder IDs appear in Harness test code

    DeepSeek Harness test code lists three placeholder identifiers, including deepseek-v5, but DeepSeek has not announced V5.

  2. DeepSeek open-sources DeepInfer under Apache 2.0

    DeepSeek has released the inference framework behind V4.1-Flash, plus a companion repo that replicates how the official API processes tokens.

  3. DHS bans DeepSeek across US federal civilian agencies

    US federal civilian agencies must remove existing DeepSeek products and stop buying new ones, and the ban also covers third-party services built with DeepSeek.

  4. Unsloth fits DeepSeek V4.1-Flash-1017 into a 250GB download

    Unsloth released a 1-bit GGUF of DeepSeek's 552B model that runs locally on machines with at least 128GB of memory.

  5. DeepSeek V4.1-Flash update tops Arena's open agent rankings

    The October 17 V4.1-Flash update ranks No. 1 among open models and No. 11 overall on Arena's Agent Arena, at a median $0.20 per task.

  6. dsx runs DeepSeek-V4.1-Flash-1017 on two RTX 3090s at 30-37 tok/s

    The open-source dsx engine ships two dedicated runners for the 552B MoE + 196B Engram model: one for a desktop with two RTX 3090s, one for a single AMD MI325X.

  7. DeepSeek-V4.1-Flash (552B) runs on a single RTX 4090 at ~27 tok/s

    The open-source engine Xolotl runs the full 552B DeepSeek-V4.1-Flash on one gaming PC. Its author measured 26.8 tok/s decode.

  8. ds4 PR adds DeepSeek-V4.1-Flash-1017 support and fixes a vision-file check

    PR #1225 for antirez/ds4 (dwarfstar) adds support for the new 1017 checkpoint and fixes a check that let mismatched vision towers load.

  9. DeepSeek open-sources V4.1-Flash-1017 and opens Search and Fetch APIs

    DeepSeek shipped an updated Flash model with open weights and, for the first time, opened its in-house search engine to outside developers.

  10. OpenCode makes DeepSeek V4.1 Flash free, with a 200K-token context cap

    DeepSeek V4.1 Flash calls inside OpenCode no longer count against plan credits; the free version tops out at 200K tokens of context.

  11. DeepSeek web app and API hit a partial outage

    On the morning of October 15, users reported that DeepSeek returned a "server temporarily unavailable" message, and the official status page showed a partial outage of the web app and API. (Chinese-language source)

  12. ByteDance paper: a few extra equals signs can flip DeepSeek-V4-Flash-Base's answer

    Chunked KV-cache compression makes the model sensitive to where key information lands, so the remainder when you divide the number of equals signs by 4 can change the answer.

  13. Lenovo's TianxiCode with DeepSeek-v4.1-Flash solves 71% on SWE-bench-Live Lite

    Lenovo Tianxi AI's coding-agent framework TianxiCode, paired with DeepSeek-v4.1-Flash, solved 71% of issues on the SWE-bench-Live Lite split and reportedly ranks first. Chinese-language source.

  14. DeepSeek reportedly raising at least $12 billion, led by CATL and Tencent

    Bloomberg reports that DeepSeek is close to closing a new funding round of at least $12 billion, which could approach $15 billion.

  15. DeepSeek Harness tests Claude Code Mods layer

    DeepSeek Harness says its Claude Code Mods compatibility layer remains an experimental alpha feature.

September 2026

  1. DeepSeek open-sources Ascend versions of its core kernels; V4.1-Flash reaches 5,102 tokens/s per card

    DeepSeek has ported its GPU infrastructure stack to Huawei Ascend and published inference numbers for DeepSeek-V4.1-Flash running on a SuperPoD.

  2. DeepSeek Harness launches an official desktop app

    According to ifanr's hands-on test, DeepSeek Harness now has macOS and Windows desktop apps, so users no longer have to set it up from a terminal. It is now pitched for everyday office work as well as coding.

  3. DeepSeek Harness Desktop Preview Builds Show Up on the Official Download Site

    Electron packages of DeepSeek Harness for Windows and macOS appeared on download.deepseek.com, flagged as RC/nightly.

  4. DeepSeek details its agent-training sandbox layer: 5,000 sandboxes a second

    A paper opens up the system that mass-produces isolated environments for agentic training — about 3 million a day, peaking above 380,000 running at once.

  5. DeepSeek invited to speak at a UN Security Council AI meeting

    Reuters says DeepSeek was invited to make a statement at the September 23rd meeting, but attendance, delegate and remarks all remain unconfirmed.

  6. A Codex package hands implementation to DeepSeek V4.1 Flash

    Reserving GPT-6 Astra for planning and review cut Astra input by 98.9% in one build, the developer says.

  7. Tencent open-sources WeKnora with an official DeepSeek Harness plugin

    WeChat's team opens a RAG-to-agent knowledge platform and ships an official plugin for DeepSeek Harness.

  8. DeepSeek hires a CFO from Hillhouse's venture arm

    Chinese reporting says DeepSeek's new CFO, Yan Wentao, was a partner at Hillhouse's venture arm who backed Zhipu and MiniMax.

  9. DeepSeek's app gray-tests native voice chat with four voices

    A speaker control appears in the top-right corner, with four selectable TTS voices.

  10. Cambricon ships day-0 DeepSeek-V4.1-Flash support on vLLM

    Cambricon finished adapting DeepSeek-V4.1-Flash on vLLM on the model's release day, so Cambricon chips were available alongside the new model.

  11. DeepSeek-V4.1-Flash reaches GA with an 890-byte-per-token KV cache

    DeepSeek shipped the Flash line to general availability with open MIT weights and a global KV cache of 890 bytes per token.

  12. DeepSeek reroutes V4 Pro API traffic to V4.1 Flash

    Until V4.1 Pro arrives, every V4 Pro API request goes to the cheaper V4.1 Flash — an early retirement for the current premium endpoint.

  13. DeepSeek cuts Flash prices, effective tomorrow noon (Chinese-language source)

    DeepSeek's platform notice sets new Flash-series prices from 12:00 Beijing time on September 10, with off-peak output at 4 yuan per million tokens.

  14. DeepSeek plans 160,000-chip Huawei inference cluster

    Per Bloomberg, the Ascend-950DT fleet would run inference only; training stays on Nvidia hardware.

  15. Leiphone dissects 11,000 DeepSeek Harness plugins: almost no governance

    After DeepSeek Harness went open source, 11,000+ GitHub repos appeared under the dsh-plugin tag; Leiphone's hands-on test found almost no official plugin governance.

  16. DeepSeek open-sources first V4 vision model, 305B under MIT

    DeepSeek released downloadable MIT-licensed weights for DeepSeek-V4-Flash-Vision-Exp, the V4 family's first multimodal model, 10 days after its API debut.

August 2026

  1. A better harness makes DeepSeek-V4-Flash outscore Opus 4.8

    The same DeepSeek-V4-Flash wins all five benchmarks and beats Claude Opus 4.8—57.1× more expensive—once it runs on Floatboat's harness.

  2. DeepSeek Engram Moves Patterns Into Lookup Tables

    Engram stores recurring language patterns in hashed N-gram embeddings, reserving more active computation for reasoning and long context.

  3. DeepSeek enters state-backed attack workflows

    TeamT5 says Chinese state-backed groups more than doubled their attacks after adopting AI for routine work and malware development.

  4. DeepSeek V4 Flash gets $0.15-per-million hosting

    OneTriangle has launched hosted DeepSeek V4 Flash, emphasizing low prices and low-latency inference.

  5. DeepSeek V4 Pro–Sol cascade cuts DeepSWE cost 60%

    Together AI: run cheap V4 Pro first, escalate to GPT-5.6 Sol only on failures—higher pass rate at lower cost.

  6. Text harness lifts DeepSeek V4 Pro across nine benchmarks

    A weights-untouched, inference-time layer raised DeepSeek's scores on all nine tests — but the viral "beats Fable 5 everywhere" claim outruns the data.

  7. DeepSeek Harness sparks a plugin boom as V4-Pro prices rise Aug 16

    Days after DeepSeek open-sourced its Harness runtime, GitHub already carries 700+ dsh-plugin repos — while V4-Pro API prices rise on August 16.

  8. One DeepSeek model, a 20-point swing across harnesses

    Composio ran DeepSeek V4 Flash through eight harnesses; Pi Agent led at 66.7% and cost roughly a seventh of Claude Code per task.

  9. DeepSeek open-sources its Harness agent framework under MIT

    DeepSeek ships its in-house agent software as an MIT-licensed alternative to Codex and Claude.

  10. DeepSeek raises V4 API prices on August 16 with a peak/off-peak rate card

    The new schedule splits pricing by UTC hour — off-peak is half of peak, yet every off-peak rate still sits above today's price.

  11. DeepSeek V4 Pro goes live with a 1M-token tier

    DeepSeek-V4-Pro-0813 lands on the API with a one-million-token context and agent tooling, priced 3x the Flash tier.

  12. A self-hosted DeepSeek latent-reasoning stack lands, needs Blackwell GPUs

    InterSystems' Mitchko bolted a CoLaR latent-reasoning head onto DeepSeek-V4-Flash and shipped weights plus serving code.

  13. DeepSeek Janus-Pro loses an image shoot-out to Fibo

    In a second matchup, DeepSeek's Janus-Pro lost 45.1 to 61.2 against Fibo Bbq Preview, winning just 1 of 8 tasks.

  14. ARC Prize verifies DeepSeek V4 Flash: 61.4% at $0.04 per task

    An outside ARC-AGI-2 evaluation shows V4 Flash sliding from 61.4% at Max effort to 46.0% at Low.

  15. DeepSeek V4 Flash: agent-framework cost varies nearly 3×

    Running the same DeepSeek V4 Flash across different agent frameworks, per-successful-task cost ranged from $0.073 to $0.195 — a near-3x spread.

  16. DeepSeek warns of a steep API price hike

    DeepSeek says it plans to raise its API prices across the board soon, warning the increase will be "large," but gave no new prices or effective date.

  17. DeepSeek V4-Flash tops OpenRouter's weekly token ranking

    Takeaway: DeepSeek V4-Flash led OpenRouter's weekly ranking with 7.1 trillion tokens, and Chinese models took nine of the global top ten slots.

  18. DeepSeek V4 Flash clocks 16 tok/s on an M1 Ultra

    A community run shows the 256-expert DeepSeek V4 Flash reaching roughly 16 tok/s on a 128GB M1 Ultra, via a third-party llama.cpp fork patch.

  19. Two DeepSeek-V4 findings: a retry lesson from the paper, and V4 Flash's coding score

    A DeepSeek-V4 paper detail warns that retrying failed requests introduces length bias; a community benchmark bounds V4 Flash's coding ability.

July 2026

  1. DeepSeek retunes V4-Flash to strengthen coding agents

    DeepSeek moved V4-Flash to an official API public beta on July 31, keeping the architecture and parameter count fixed and re-running only post-training to sharpen coding and tool-use behavior.

  2. Nvidia ModelExpress cuts DeepSeek-V4 Pro startup from 8 min to under 2

    Nvidia streams weights over GPU-to-GPU RDMA to slash large-model cold starts.

  3. Xiaomi phone filing bundles MiMo, DeepSeek, Qwen and more

    A leak says a new Xiaomi phone filed roughly ten large models on a single device, spanning its own MiMo and several third-party models.

  4. Nvidia's Vera Rubin NVL72 enters mass production; a DeepSeek R1 test shows 10x tokens per megawatt

    Nvidia says Vera Rubin is scaling to trillion-level deployment, reporting a 10x gain in tokens-per-megawatt over the prior generation using DeepSeek R1 (Chinese-language source).