AI Agents & Coding · Freemium

DeepSeek V4.1 Flash

DeepSeek's open-weight model released on Hugging Face as DeepSeek-V4.1-Flash-1017 on October 17, 2026, under the MIT license. It is the model behind the deepseek-flash name on the DeepSeek API, and DeepSeek reports agentic coding results for it on Terminal-Bench 4.0 and DeepSWE.

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Benchmarks · Comparison · Wajid Ali · Oct 29, 2026 · 8 min

Best Open-Weight Coding Models in 2026, Compared

Kimi K3.1 Pro, Mistral Large 4, DeepSeek V4.1 Flash and Qwen3.8 compared on agentic coding benchmarks, licenses, prices and self-hosting, with every score attributed.

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