Claude Fable 5
Anthropic · 5 thinking configurations
Intelligence49.6
Input / 1M$10.00
Output / 1M$50.00
Context1M
Tariff: Anthropic · Source: artificial-analysis · USD per million tokens
Thinking configuration
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Compare this model’s measured thinking configurations.
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Efficient frontier: best measured score at each cost1 measured configurations · 4 without both values
Selected: thinking max · Click a point to switch configuration
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
49.6 pointsDeepSWE · pass@1Software-engineering tasks on mini-swe-agent v1.1. Pass@1 across evaluated runs, with measured cost per task. The 95% intervals may overlap.
69.7 % ±4.0GPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
92.6 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
55.5 %SciCodeCode generation for scientific research problems.
61.0 %Terminal-Bench 2.1Agent tasks in a terminal environment. Results also depend on the evaluation harness.
84.6 %τ²-BenchTool use and interaction in assistance scenarios. Does not replace an evaluation of your integration.
98.5 %IFBenchVerifiable instruction following. A proxy for precision rather than a benchmark of creative style.
63.5 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
65.3 %Specifications from the catalog
Inputtext, image, file
Outputtext
Tool callingYes
Structured outputYes
Speed62.9 tok/s
First token103.20 s
Maximum output128K
Catalog listing date2026-06-09
DeepSWE v1.1 · 113 tasks · mini-swe-agent · cost $21.63 / task · 88 mean steps · 118.6K mean output tokens. Published by the source 9/22/2026.