Unverified50% confidenceOpinionExact time
In SlopCodeBench, Opus 5.5 and Astra each have their wins, showing that a single model struggles to dominate all task types.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/20/2026
First Seen
Valid until: 11/3/2026
Sources
Related Entities
Related Claims
UnverifiedOpus 5.5 outperformed Astra and Fable 5.1 on the Terminal Bench 4.0 test.63% similarUnverifiedIn the API-available version of Muse Wonder, it beat Claude Opus 5.5 on the SWE-Marathon benchmark.58% similarUnverifiedWithin the range of 5 to 100 tools, the accuracy of all three clients (Claude Code Opus 5.5, Codex CLI GPT-6.1-sol, Antigravity Gemini 3.1 Pro) did not decline, and all individual tool runs were completely correct.58% similar
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