Mercury 3 vs Muse Spark Open
Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.
Specs & pricing
| Mercury 3 | Muse Spark Open | |
|---|---|---|
| Company | Inception | Meta AI |
| Released | Oct 2026 | Oct 2026 |
| Context window | 1.0M | 1.0M |
| Input /1M tokens | $0.2 | $1.25 |
| Output /1M tokens | $0.7 | $4.25 |
| Open weights | No | Yes |
Benchmarks
| Benchmark | Mercury 3 | Muse Spark Open |
|---|---|---|
| GPQA | — | 89.0% |
| Speed (tok/s) | — | 141 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.