Unverified50% confidenceTradeoffExact time
There is no all-around winner among the three lightweight models: DeepSeek V4.1 Flash has the highest quality but is slow, Haiku 5.5 is fast and leads in writing but lags in programming visual output, and GPT-6 Luna performed poorly on tasks.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/10/2026
First Seen
Valid until: 1/8/2027
Sources
Related Entities
Related Claims
VerifiedV4.1 Flash surpassed Opus 5 on the DeepSWE benchmark by a narrow margin of 0.2 points.78% similarUnverifiedThe release party claimed that DeepSeek-V4.1-Flash outperforms Opus 5 and GPT-5.6 Sol on three benchmarks: DeepSWE, CyberGym, and Automation Bench.77% similarUnverifiedOn the DeepSWE v1.1 benchmark, 3.8 Flash surpasses most frontier models with larger parameter counts.77% similarUnverifiedTesters consider DeepSeek Flash's overall capabilities inferior to top-tier models like Opus 5, making it unsuitable as a primary orchestrator, but suitable as a sub-agent or for local deployment.76% similarUnverifiedIn the receipt recognition task, DeepSeek V4.1 Flash was twice as fast as Haiku 5.5.76% similar
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