Composer 2.5 vs Muse Spark 1.1
Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.
Specs & pricing
| Composer 2.5 | Muse Spark 1.1 | |
|---|---|---|
| Company | Anysphere | Meta AI |
| Released | Jul 2026 | Jul 2026 |
| Context window | — | 1.0M |
| Input /1M tokens | $0.5 | $1.25 |
| Output /1M tokens | $2.5 | $4.25 |
| Open weights | No | No |
Benchmarks
| Benchmark | Composer 2.5 | Muse Spark 1.1 |
|---|---|---|
| Arena Elo | — | 1495 Elo |
| GPQA | — | 89.8% |
| Hallucination Rate (lower is better) | — | 38.1% |
| Speed (tok/s) | — | 124 tok/s |
Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.