DeepSeek V4.1 Flash sparks buzz: 81.9 score at ~1/11 the cost, third-party evals pending
teortaxesTex · x · 2026-10-19
DeepSeek's Saturday launch of V4.1 Flash-1017 is drawing attention for aggressive price-performance: per the BuildingBench 3D reconstruction leaderboard, it scored 81.9 to enter the top five — 0.5 above Fable 5.1 at 1/11 the cost, and just 0.2 below Sonnet 5.5 at 1/15 the cost.
Commentator teortaxesTex criticized the leaderboard graphic's Artificial Analysis-style branding and the Saturday launch timing, and is waiting for independent verification from ECI, Artificial Analysis, Vals, and ARC — arguing that merely staying on-trend would already be momentous for a Flash tier. Third-party results aren't out yet; treat vendor-sourced numbers with caution.
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