Compare AI models

Benchmarks
SWE-Bench Pro
55%54%
Terminal-Bench 2.1
67.3%73%
Overview
CompanyMetaSpaceXAI
Release dateApr 8 2026May 18 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Muse Spark and Composer 2.5 are evenly matched across the 2 benchmarks they both report (SWE-Bench Pro, Terminal-Bench 2.1). Muse Spark shipped 40 days before Composer 2.5, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

On SWE-Bench Pro, Muse Spark leads at 55% vs Composer 2.5 at 54%. On Terminal-Bench 2.1, Composer 2.5 leads at 73% vs Muse Spark at 67.3%.