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DeepSeek V4.1 Flash 1017: What Developers Should Know About the 20-Cent Coding Model (2026)

DeepSeek V4.1 Flash 1017 — fast, cheap AI coding model illustration

On 17 October 2026, DeepSeek announced DeepSeek V4.1 Flash 1017 — an updated checkpoint of its DeepSeek V4.1 Flash coding model. It scores 77.0 on DeepSWE v1.1, ahead of Claude Opus 5 and GPT-5.6 Sol in DeepSeek’s own table, and it finishes a typical coding task for about 20 cents — roughly one-tenth to one-fiftieth … Read more