Verified65% confidenceReleaseExact time
DeepSeek has launched the model checkpoint V4.1-Flash-1017, available simultaneously on the official website, the app, and the API.
3
Sources
65%
Confidence
Short-term (~14 days)
Relevance
10/17/2026
First Seen
Valid until: 10/31/2026
Sources
Related Entities
Related Claims
UnverifiedDeepSeek-V4.1-Flash is primarily aimed at three application scenarios: programming, cybersecurity, and agents.78% similarPartially VerifiedDeepSeek replaced the model behind the deepseek-flash API endpoint with a new checkpoint, DeepSeek-V4.1-Flash-1017, without a changelog or email notification.78% similarPartially VerifiedDeepSeek released the V4.1-Flash-1017 model on October 17, adding the Search and Fetch APIs.77% similarUnverifiedThe original three modes — "Fast / Expert / Real-time" — on DeepSeek's web and app clients have been merged and unified into V4.1 Flash, so users no longer need to select manually.75% similar
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