DeepSeek V4.1 Flash 1017 Launches on OpenRouter

Key Info

DeepSeek V4.1 Flash 1017 is now available on OpenRouter, with DeepSeek as the first provider and additional providers planned. The release is described as more token efficient and shows major gains in agentic benchmarks.

Highlights

• DeepSeek V4.1 Flash 1017 is live on OpenRouter, with DeepSeek as the first provider.
• More providers are expected to follow.
• The update improves token efficiency.
• It shows major gains in agentic benchmarks.
• DeepSeek reports stronger benchmark performance, faster task completion, and shorter outputs than the previous version, calling it a Pareto improvement in performance and cost.
• It is optimized for tools including DeepSeekHarness, Tencent CodeBuddy, and WorkBuddy.