Muse Spark Open
muse-spark-open-816b-a42b
Muse Spark Open is an 816B total / 42B active open-weight multimodal reasoning model from Meta for coding and long-horizon agentic work, with 1M-token context.
Specification
most-agreed values
Context
1M
Max output
131K
Released
2026-10-15
Knowledge cutoff
2026-01-04
Retires
—
Open weights
yes
Input
text, image, video
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.25
Output
$4.25
Cache read
$0.15
Available from 3 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| modal · meta-models | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| together_ai | $1.25 | $4.25 | $0.15 | — | 1M | 1M | — |
| togetherai · meta-models | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
