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“🚀 DeepSeek-V4.1-Flash-1017 is here!”

DeepSeek @deepseek_aiX

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🚀 DeepSeek-V4.1-Flash-1017 is here!

Stronger benchmark performance, faster task completion, and shorter outputs than the previous version—a Pareto improvement in performance and cost. Now live on our website, app, and API.

🛠️ Optimized for @DeepSeekHarness, Tencent CodeBuddy, WorkBuddy, and more. Upgrade to DeepSeek Harness v0.2.1-rc.1 or later for the best experience with the new model.

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Source: x.com/deepseek_ai/status/2111375640717033777Archived 2026-10-17 via fxtwitter (unofficial).Counts: 942,732 views, 13,315 likes, 1,668 reposts, 679 replies (at fetch time)Media: image 1, image 2

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  1. Model releases 109 days after the cutoff

    DeepSeek-V4.1-Flash-1017 update: big agentic-coding gains, same price