Blogger's early tests claim DeepSeek v4.1 Flash beats Opus 5, near Fable 5.1 (unverified)
natesiggard · x · 2026-09-13
X user @MiaAIlab reports that in initial testing, DeepSeek v4.1 Flash outperforms Opus 5 across the board in frontend web design and comes close to Fable 5.1 — while running fully locally on modest hardware.
The claim is unverified personal testing with no public benchmarks. The author frames it as vindication of Anthropic CEO Dario Amodei's recent call to slow frontier development: if true, the gap between open/cheap models and frontier closed models is closing fast.
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