Verified65% confidenceReleaseExact time
DeepSeek V4.1 Flash was released on September 10 with MIT open-source weights.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
9/27/2026
First Seen
Valid until: 12/26/2026
Sources
Related Entities
Related Claims
Partially VerifiedDeepSeek v4.1 Flash 1017 has been released and has sparked widespread attention in technical communities, but official details disclosed are limited.79% similarVerifiedDeepSeek V4.1 Flash scores lower than the previous version on GPQA, HLE, and other benchmarks.74% similarUnverifiedThe price of DeepSeek V4.1-Flash-1017 remains the same as the previous version (deepseek-flash).73% similar
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