Muse wonder brings Meta back to the frontier of AI

They just released Muse Wonder, whose top version beats Claude Opus 5.5 on 8 of 14 published benchmarks.

A rally major milestone for Zuckerberg

Its ahead of GPT-6 Astra and Claude Fable 5.1 on long-running coding, legal work and business automation.

The widest gap comes on SWE-Marathon, an ultra-long engineering test, where Full scores 57.5 against 46.3 for Opus 5.5.

Full also leads DeepSWE 1.1, a long-horizon coding test, 79.0 to 74.2, in what Meta says were independent third-party runs.

On Harvey’s legal agent benchmark, which credits only tasks finished in full without hallucination, Full scores 13.1, more than triple Opus 5.5’s 4.2.


📰 @aipost