Fable 5.2 tops LiveBench at 85.2 but costs $9,431 per successful task, early review finds

bindureddy · x · 2026-11-10

Bindu Reddy's early review of Claude Fable 5.2: it edges out GPT-6 Astra to top LiveBench at 85.2 overall, but at an astronomical cost — the leaderboard image shows $9,431 per successful task (xhigh), nearly double GPT-6 Astra's $5,318 and far above GPT-6.1 Sol's $823. He also reports max mode is unusable (they used xHigh instead), the model spins more than Fable 5.1, and calls the release underwhelming and very incremental for Anthropic's pre-IPO flagship.

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