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Claude Fable 5.2

Claude Fable 5.2 has 1 tested configurations. Its highest published overall score is 94.00 at max. Inspect dimension scores, evaluation time, and reference cost below.

Overall score94.00

Claude Fable 5.2 · max

Backend engineering
97
Frontend interaction
96
Knowledge & reasoning
100
Visual aesthetics
83
Maintainability
73
Evaluation time
351m 33s
Reference cost
$81.98

Complete evaluation · API reference cost

Overall rank 1 / 55 models · Best tested effortBackend tested · 11/10/2026Tasks & methodology

Tested configuration

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Model / effortOverallBackend engineeringFrontend interactionKnowledge & reasoningVisual aestheticsMaintainabilityTotal eval. timeTotal ref. costCompare
94.0097961008373351m 33s$81.98

Score breakdown

Overall score
94.00
Evaluation time
351m 33s
Reference cost
$81.98

Service logic, error handling and verification.

Contracts and boundaries18 / 20

API contracts, input validation and boundary behavior.

Retries and failures20 / 20

Recovery, retry conditions and failure handling.

CI and adversarial review19 / 20

Verification plans, risk detection and audit evidence.

Transactions and consistency20 / 20

State transitions, concurrency and consistency.

Caching and regression20 / 20

Invalidation, data updates and regression coverage.

Data snapshot published · 11/12/2026Scoring & cost notes