Expired60% confidenceBenchmarkExact time

Claude Opus 5.5 topped the FrontierCode 1.1 benchmark, surpassing Fable 5 and GPT-6 Astra.

2

Sources

60%

Confidence

Short-term (~14 days)

Relevance

9/22/2026

First Seen

This claim has expired. It is kept for the record and no longer describes the current state.

Valid until: 10/6/2026(expired)

Sources

Claude Opus 5.5 Lands on Devin: Top Benchmark Performance at a Fraction of the Cost

Related Entities

Claude Opus 5.5model FrontierCode 1.1concept Fable 5model GPT-6 Astramodel

Related Claims

UnverifiedSWE-1.7 is claimed to approach the performance of GPT-5.5 and Claude Opus in terms of programming intelligence.74% similar UnverifiedIn the agent capability benchmark LexExam, GPT-5.6 Soul scored 13.1 points higher than Anthropic's Claude Fable 5.72% similar UnverifiedGPT-5.6 comprehensively outperformed Claude Opus and Opus 4.5 in tests covering knowledge work, science, and health domains.71% similar

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