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DeepSeek retires deepseek-v4-flash aliases, routes them to new V4.1-Flash-1017 checkpoint
2026-10-17
DeepSeek's API docs show the deepseek-flash model name is now served by a new checkpoint, DeepSeek-V4.1-Flash-1017. The legacy aliases deepseek-v4-flash and deepseek-v4-flash-vision-exp are still accepted but have been retired, with their requests now routed to DeepSeek-V4.1-Flash-1017 and billed at the Flash price.
Significance 2: A routine checkpoint refresh and alias consolidation with no disclosed benchmark deltas; worth logging for entity tracking but below the bar for a capability-moving release.
technology Release
Sources
- primary DeepSeek API docs — Your First API Call retrieved 2026-10-18