Unverified50% confidenceFactExact time
Claude Opus 5.5 is a frontier-level intelligence model that provides a level of intelligence comparable to top models such as GPT-6 Astra, but is faster and cheaper.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/7/2026
First Seen
Valid until: 1/5/2027
Sources
Related Entities
Related Claims
VerifiedThe GPT-5.6 series achieves performance equal to or higher than Opus 4.8 and Fable 5 at a lower cost across multiple benchmarks.80% similarUnverifiedSWE-1.7 is claimed to approach the performance of GPT-5.5 and Claude Opus in terms of programming intelligence.77% similarUnverifiedSlower, detail-oriented models such as Claude Fable 5.1 and GPT-6 Astra are positioned as 'System 2' models.76% similarUnverifiedOpus 5.5's release page directly uses GPT-6's Astra as its comparison target.76% similarUnverifiedGPT-5.6 comprehensively outperformed Claude Opus and Opus 4.5 in tests covering knowledge work, science, and health domains.74% similar
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