Anthropic · LIVEBENCH 2026-06-25

Claude Fable 5.1 Max Effort

Published benchmark results for this specific model configuration.

claude-fable-5-1-max-effort

Overall score83.4 / 100

Cost / successful task$1.212USD · benchmark workload

Weight accessNot reported

Where this configuration performs

Category averages from the same release, on a 0–100 scale.

Reasoning91.7

Coding86.4

Agentic Coding66.1

Mathematics97.0

Data Analysis80.3

Language89.5

Instruction Following73.0

Task-level results

theory of mind80.8zebra puzzle100.0spatial100.0logic with navigation86.0code generation90.1code completion82.6javascript68.2typescript60.0python70.0AMPS Hard99.0integrals with game99.0math comp97.1olympiad93.0consecutive events90.6tablejoin56.2tablereformat94.1connections99.3plot unscrambling75.2typos94.0paraphrase71.5simplify70.2story generation78.1summarize72.2

Source files: Scores ↗ Categories ↗ Costs ↗ . Missing cost is unknown, never free. Compare configurations within the same release.