Expired50% confidenceBenchmarkExact time
DeepSeek 4.1 Flash can surpass top-tier models such as Claude Opus 5 and Kimi K3 on certain benchmarks, but does not lead across the board.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/19/2026
First Seen
Valid until: 10/3/2026(expired)
Sources
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Related Claims
VerifiedDeepSeek V4.1 Flash scores lower than the previous version on GPQA, HLE, and other benchmarks.71% similarUnverifiedDeepSeek V4.1 Flash was in closed beta during testing, but could be accessed normally by directly calling the model ID.69% similarUnverifiedThe post claims that DeepSeek v4.1 Flash outperforms other large models previously used by the team in security offensive-defensive tasks such as penetration testing and vulnerability discovery.68% similarPartially VerifiedFreeBuff integrates multiple large models including DeepSeek V4 Pro, Kimi K2.6, MiniMax M2.7, and DeepSeek V4 Flash, all free to use.68% similarUnverifiedThe three methods for calling DeepSeek V4.1 Flash are DeepSeek Harness, Claude Code, and Codex.68% similar
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