Meta ships Muse Wonder: ties Claude Code on coding index, near-frontier in 14 months
Latent Space · rss · 2026-10-13
Meta Superintelligence Labs launches the Muse Wonder family
Roughly 14 months after founding, MSL shipped its second-generation family: Muse Wonder (codename Watermelon 🍉) and Muse Wonder Full, with third-party evals placing it near the frontier.
Specs & pricing: 1M context; text/image/video/audio input, text-only output; $4/M input, $0.20/M cached, $20/M output. Wonder is on the Meta Model API and Muse Code; Full is Muse Code-subscriber-only and will power the Muse personal agent.
Independent evals
- Artificial Analysis: Wonder Full hits 56 on the Intelligence Index (Opus 5.5 leads at 58), improving all ten evals; biggest gains in agentic tasks — Terminal-Bench 33%→57%. Cost per task $4.52, below Fable 5.1 ($7.63) and Opus 5.5 ($5.98).
- Coding Agents Index: Wonder Full scores 68, tying Claude Code + Sonnet 5.5.
- Vals AI: ProofBench private 94/100; 30% fewer output tokens on Terminal-Bench.
- Meta-reported: SWE-Marathon 57.5% (vs Opus 5.5's 46.3%), DeepSWE v1.1 79%, MemoryBench 85.5.
Other notes
- Launch-day quota-drain bug fixed same day with a full reset.
- Headline features: Active Memory (days/weeks/months), Active Focus, finance/legal domain strength.
- Emphasis on anti-"laziness" training, alignment work, an internal Personal Superintelligence Index, and OOD gains against benchmaxxing claims.
- Partner notes: token efficiency is the biggest unlock, zero refusals on cyber benchmarks, but weaker scientific-discovery intuition.
- META stock rose 3% on the day.
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