Model results

FrontierCode

Choose a shared evaluation protocol to compare model scores. Versions, sources and configurations stay separate.

Atlas snapshot captured 10/19/2026, 10:20:28 AM UTC. This is an import timestamp, not the evaluation date. Coverage may be incomplete.

Official source

← All evaluation groups

FrontierCode

Source: Cognition via Epoch AI
Version: Not reported
Measurement date: Not reported
Metric: % · Higher is better
Evaluation scope: Harness claude-code · Aggregation Mean@5 · effort unspecified · result date not supplied

Positions are withheld because at least one result lacks explicit independent provenance or a documented evaluation scope. Missing metadata is shown as unreported; matching imported metadata is not independent verification of the protocol.

Claude Fable 5
anthropic/claude-fable-5
53.5%
View modelEvidence aggregated
Claude Opus 4.8
anthropic/claude-opus-4-8
46.5%
View modelEvidence aggregated
Claude Sonnet 5
anthropic/claude-sonnet-5
42.7%
View modelEvidence aggregated
Claude Opus 4.7
anthropic/claude-opus-4-7
38.5%
View modelEvidence aggregated
Claude Opus 4.6
anthropic/claude-opus-4-6
26.6%
View modelEvidence aggregated
Claude Sonnet 4.6
anthropic/claude-sonnet-4-6
24.3%
View modelEvidence aggregated