Skip to main content
Launching the open-source gateway

Claude Sonnet 5.5 vs Muse Wonder Full

SpecClaude Sonnet 5.5Muse Wonder Full
Respan Index73.1 (#2)70.9 (#5)
Blended price per 1M$2-
Context window1M-
Input / output per 1M$1 / $5-
Max output128K-
Inputtext, visiontext, vision, video, audio
Released2026-09-282026-10-12

Respan Index by category

Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.

CategoryClaude Sonnet 5.5Muse Wonder Full
Coding79.6 Claude Sonnet 5.562.9 Muse Wonder Full
Agents78.4 Claude Sonnet 5.574.1 Muse Wonder Full
Reasoning79.0 Claude Sonnet 5.582.8* Muse Wonder Full
Knowledge & language48.5 Claude Sonnet 5.570.5* Muse Wonder Full
Human preference60.2 Claude Sonnet 5.559.3 Muse Wonder Full

* Estimated: no published scores in that category. How the Respan Index works

Benchmarks both report

Claude Sonnet 5.5 leads on 4 of the 4 benchmarks both report. Higher is better. Each score links to where it was published.

BenchmarkClaude Sonnet 5.5Muse Wonder Full
LMArena Agent (LMArena)0.13840.1009
LMArena WebDev (LMArena)17701725
Terminal-Bench 4.0 (Vals AI)64.1%58.1%
OSWorld 2.1 (partial)80.1%78.4%

FAQ

Is Claude Sonnet 5.5 better than Muse Wonder Full?

Claude Sonnet 5.5 scores 73.1 on the Respan Index (#2), ahead of Muse Wonder Full at 70.9 (#5). Claude Sonnet 5.5 leads on 4 of the 4 benchmarks both report.

Compare other models

vs

Built for AI agents.
Break less.
Ship more.