Muse Spark Open
by Cloudflare AI Gateway · family muse · listed Oct 2026RTVW
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.
Current rates USD per 1M tokens
Input$1.25
Output$4.25
Cache read$0.15
Cache write—
Against the market
On the record
- Model id
meta/muse-spark-open- Context window
- 1.0M tokens
- Max output
- 131K tokens
- Input modalities
- text, image, video, audio
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- yes
- Knowledge cutoff
- Jan 2026
- Released
- 2026-10-15
- Last updated
- 2026-10-15
- Provider docs
- developers.cloudflare.com/ai-gateway/
Back of the envelope
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