DeepSeek API briefly lists 'deepseek-v4.1-flash-1017' entry before removal
On October 17, the X account AI Tracker Bot spotted an entry named "deepseek-v4.1-flash-1017" in DeepSeek's official API list, but it was quickly removed.
The account noted that the 1017 suffix matches DeepSeek's previous date-based snapshot naming convention, such as V4-Flash-0731 and V4-Pro-0813, suggesting it could point to a new V4.1 Flash snapshot. It also updated that the public deepseek-flash on DeepSeek's API remains V4.1 Flash, not the 1017 snapshot, and that its output matches third-party hosted open-weight models to a degree comparable to V4 Pro consistency across two hosts.
As of the time of writing, DeepSeek has not officially commented on the existence or changes of the "1017" snapshot.
For context, DeepSeek released V4.1 Flash on September 10, 2026, as the smallest model in its new architecture series, with native multimodal visual understanding. The previous V4 Flash and V4 Flash Vision Exp were taken offline and temporarily routed to V4.1 Flash.
