DeepSeek retires deepseek-chat and deepseek-reasoner on July 24, 2026: your V4 migration checklist

DeepSeek retires deepseek-chat and deepseek-reasoner on July 24, 2026: your V4 migration checklist Summary. At 15:59 UTC on July 24, 2026, DeepSeek permanently retires the two model names most product