Muse Spark Open (816B-A42B)
MetaOpen weights1.05M context
Muse Spark Open (816B-A42B) is an open-weights model from Meta with a 1.05M-token context window. 1 provider lists it, at $1.25 per million input tokens and $4.25 per million output tokens (Together AI).
- Maker
- Meta
- Licence
- Open weights
- Context window
- 1.05M
- Providers listed
- 1
- Lowest input, per 1M
- $1.25
- Lowest output, per 1M
- $4.25
- Effort settings
- Xhigh
Providers serving Muse Spark Open (816B-A42B)
Cheapest first, by the blended rate of three input tokens to one output token. Prices in US dollars per million tokens, as of 26 Oct 2026.
| Provider | Input | Output | Context | Tools | JSON mode | OpenAI-compatible | Model ID |
|---|---|---|---|---|---|---|---|
Together AI | $1.25 | $4.25 | 1.05M | Yes | Yes | — | Muse-Spark-Open-816B-A42B |
Benchmark scores
Published scores only, each linked to its source. Compare every model in Bench rankings
| Benchmark | Xhigh |
|---|---|
GPQA Diamond PhD-level scientific reasoning | 88.6% |