Muse Spark Open
Muse Spark Open is a model from Meta, listed under Language models. It was released on Oct 15, 2026.
- Headline price
- No data
Current prices
No public API price
This model is distributed as open weights. Running cost depends on your own hardware.
Price history
No price change recorded for this model yet.
Benchmarks
| Benchmarks | Score |
|---|---|
| Intelligence Index Artificial Analysis's composite score across about ten independent evaluations (reasoning, knowledge, coding, agentic work, long context), run the same way for every model. The strongest models score in the 50s. | 38.9 |
| SciCode Writing code to solve research-level problems in physics, chemistry, biology and maths, checked by tests. | 58.4% |
| GPQA Diamond Graduate-level questions in biology, physics and chemistry, written to be resistant to web search. PhD holders in the relevant field score around 65%, so scores above that indicate genuine domain reasoning rather than recall. | 89% |
| Humanity's Last Exam About 2,500 expert-written questions at the frontier of human knowledge across maths, science and the humanities. Even the best models answer well under two thirds. | 43.9% |
| MMMU-Pro (visual reasoning) College-level questions that require reading charts, diagrams and figures, with distractors that defeat text-only guessing. | 80.9% |
| Long-context reasoning (AA-LCR) Questions that require reasoning across several long documents at once (around 100k tokens), not just finding one passage. | 78.3% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index. Source
Alternatives
Same category, closest price, other providers first.
More from Meta
| # | Model | Input | Output | Context | Released | Capabilities | Price change |
|---|---|---|---|---|---|---|---|
| 1 |
Muse Wonder
Meta
|
No data | No data | 1.05M | Oct 12, 2026 | VisionReasoningTool calling | |
| 2 |
Muse Glimmer
Meta
|
No data | No data | No data | Aug 10, 2026 | Self-hostable | |
| 3 |
Muse Spark 1.3
Meta
|
No data | No data | 1.05M | Sep 2, 2026 | ReasoningTool calling | |
| 4 |
Muse Wonder Full
Meta
|
No data | No data | No data | Oct 12, 2026 | VisionReasoningTool calling |
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Frequently asked questions
Is Muse Spark Open still available?
Yes. Muse Spark Open is generally available through the Meta API.
When was Muse Spark Open released?
Muse Spark Open was released in Oct 15, 2026.
What are the alternatives to Muse Spark Open?
Models in the same category at a similar price include Kimi K3.1 Pro (Moonshot AI), GPT-6.1 Terra (OpenAI), GPT-6.1 Terra Pro (OpenAI) and Claude Haiku 5.5 (Anthropic).