Muse Spark Open
Released Oct 2026. Open weights, available for self-hosting and fine-tuning.
Muse Spark Open is built by Meta and has 17 benchmark results tracked in the public leaderboard. It supports multimodal input, with a context window of 1.05M tokens. At the blended 8:1 input-to-output rate, it costs $1.58 per million tokens.
Where Muse Spark Open ranks
The chart below ranks every model in the comparison by overall capability, which is the average of a model's scores across the eight workload axes. Muse Spark Open is the red bar. This is the single number to check first: it tells you where the model sits in the current pecking order before you dig into the detail.
Workload strengths
Each row below is the average normalized score across every benchmark tagged with that workload category. A higher number means the model performs better on that kind of task relative to the maximum possible score on those benchmarks. Categories where the model has no published results are shown as n/a.
| Workload | Index (0–1) |
|---|---|
| Reasoning | 55% |
| Coding | 68% |
| Agents | 74% |
| Math | 60% |
| Vision | 66% |
| Long Context | n/a |
| Writing | 62% |
| Knowledge | 39% |
How Muse Spark Open stacks up against every other model
Below is every head-to-head comparison involving Muse Spark Open. Each card shows the win/loss tally across all workload axes and headline benchmarks. Tap any matchup for the full breakdown with per-benchmark scores, pricing, and workload recommendations.
Muse Spark Openvs Ember-1
Muse Spark Open leads 5–4
Muse Spark Openvs Claude Opus 5.5
Claude Opus 5.5 leads 5–3
Muse Spark Openvs Gemini 4 Argon
Gemini 4 Argon leads 5–4
Muse Spark Openvs Claude Sonnet 5.5
Claude Sonnet 5.5 leads 5–3
Muse Spark Openvs GPT-6.1 Sol
Muse Spark Open leads 5–4
Muse Spark Openvs Mistral Large 4
Muse Spark Open leads 6–2
Muse Spark Openvs Claude Haiku 5.5
Muse Spark Open leads 6–2
Muse Spark Openvs Ember-1
Muse Spark Open leads 5–4
Muse Spark Openvs Claude Opus 5.5
Claude Opus 5.5 leads 5–3
Muse Spark Openvs Gemini 4 Argon
Gemini 4 Argon leads 5–4
Muse Spark Openvs Claude Sonnet 5.5
Claude Sonnet 5.5 leads 5–3
Muse Spark Openvs GPT-6.1 Sol
Muse Spark Open leads 5–4
Muse Spark Openvs Mistral Large 4
Muse Spark Open leads 6–2
Muse Spark Openvs Claude Haiku 5.5
Muse Spark Open leads 6–2
Muse Spark Openvs Nemotron 3.5 Super VL (120B A12B)
Muse Spark Open leads 6–5
Muse Spark Openvs Muse Wonder Full
Muse Spark Open leads 6–3
Muse Spark Openvs Nemotron 3.5 Super VL (120B A12B)
Muse Spark Open leads 6–5
Muse Spark Openvs Muse Wonder Full
Muse Spark Open leads 6–3
Choose a matchup above, or start from the hub to pick any two models.