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Claude Fable 5.1

AnthropicOpenRouter ↗Artificial Analysis ↗

Claude model for demanding reasoning and long-horizon agentic work

Benchmarks

BenchmarkCategoryScoreVariantProvenanceSourceObserved
AA Agentic Indexagentic61.3mirroropenrouterSep 2, 2026
61.3independentaaSep 2, 2026
AA Coding Indexcoding81.6mirroropenrouterSep 2, 2026
81.6independentaaSep 2, 2026
AA Intelligence Indexintelligence65.7mirroropenrouterSep 2, 2026
65.7independentaaSep 2, 2026
Design Arena — 3dpreference1420mirroropenrouterSep 4, 2026
Design Arena — codecategoriespreference1347mirroropenrouterSep 4, 2026
Design Arena — datavizpreference1371mirroropenrouterSep 4, 2026
Design Arena — gamedevpreference1425mirroropenrouterSep 4, 2026
Design Arena — uicomponentpreference1343mirroropenrouterSep 4, 2026
Design Arena — websitepreference1330mirroropenrouterSep 4, 2026
Median output speedspeed67 tok/sindependentaaSep 4, 2026
Median time to first tokenspeed273.14sindependentaaSep 4, 2026

Includes index data from Artificial Analysis.

Providers

Live operational stats per hosting endpoint, via OpenRouter.

ProviderQuantContext$/1M in · outUptime 24hLatencyThroughput
Amazon Bedrock1M$10 · $50
Anthropic1M$10 · $5099.87%
Azure1M$10 · $5099.85%
Google1M$10 · $5099.21%