DeepSeek ships V4.1 Flash 1017 update with stronger agentic coding scores, shorter outputs, and open MIT weights
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Promote with Leviathan NewsDeepSeek says the 1017 update delivers stronger benchmark performance, faster task completion, and shorter outputs than the prior version, calling it a Pareto improvement in performance and cost. The model is optimized for DeepSeek Harness, Tencent CodeBuddy, and WorkBuddy, with Harness v0.2.1-rc.1 or later recommended. It uses reinforcement learning with self-feedback for end-to-end project development, with demos including a Forbidden City 3D model and a Portal 2 recreation in Godot. Search & Fetch APIs cost $0.75 per 1,000 calls, free via server-side tools until billing starts Oct 31, 2026. Weights are on Hugging Face and ModelScope.
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- UpdateOpenCode makes GLM-5.3 Flash and DeepSeek V4.1 Flash available for free2 acc.
- UpdateDeepSeek releases V4.1 Flash 1017 with improved coding performance and new search APIs42 acc.
- UpdateDeepSeek launches V4.1 Flash, with early claims of near-frontier model performance2 acc.
- UpdateDeepSeek releases V4.1 Flash-1017, touting lower costs and stronger coding benchmarks8 acc.
- Leviathan published this article
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Cited posts
- @MaxForAI Max For AIFirst reportOn X ↗
刚刚@deepseek_ai 更新了最新的V4.1-Flash-1017！？ 似乎deepseek-v4.1-flash-1017目前已经在API平台可访问！
- @tangsanzangbtc 比特唐三藏On X ↗
DeepSeek 今天把 V4.1 Flash 升级到 1017 版本 网页、App、API 同步换成新模型，调用继续用 deepseek-flash，价格不变。权重已按 MIT 协议开源，可直接下载 这次变化主要在“许愿式编程”。给出简单需求，例如“做故宫 3D 场景”“做网页赛车游戏”“用 Godot 复刻传送门…
- @AGTPinsights AGTPOn X ↗
DeepSeek just released V4.1-Flash-1017, a faster and cheaper update to V4.1 Flash. Here's what you need to know. DeepSeek posted at 3:35 PM on Oct 17, 2026 that DeepSeek-V4.1-Flash-1017 is live on its website, app and API. The post pulled about 652K views. DeepSeek says it has… https://t.co/3jBAqmcMRX
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- @berryxia Berryxia.AIOn X ↗
大周末这些国内大模型厂商都不休息啊！ DeepSeek 上线了 DeepSeek-V4.1-Flash-1017，这是 V4.1 Flash 的最新快照，官网、App 与 API 已同步切换，调用时把模型名设成 deepseek-flash 即可。… https://t.co/O3lctU3uMT
- @testingcatalog 🚨 AI News | TestingCatalogOn X ↗
BREAKING 🔥: DeepSeek released DeepSeek-V4.1-Flash-1017, a new open-weight model with frontier performance. It scores 77% on DeepSWE 1.1 benchmark, outperforming GLM-5.3, Kimi K3 and models like GPT-5.6 Sol and Opus 5. The model is now available on DeepSeek Chat and APIs… https://t.co/xt8EqHJ4fl
- @op7418 歸藏(guizang.ai)On X ↗
Deepseek 发布了 V4.1 Flash 1017 版本 他这个 DeepSeek SWE V1.1 测评，他自己这个基准上这个图有点离谱了啊，完爆了所有模型！ 整体能力再次大幅提升，同时缩短了模型的任务运行时间和输出长度，能以更低的成本完成同样的任务。 另外，他们这次着重强调了可以从零开始完成整个项目的开发：…
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