MMeta · Released Oct 15, 2026
Muse Spark Open
Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt accuracy, reliable tool calling, and deep codebase understanding across the repos developers...
- Released
- Oct 15 2026
- Context window
- 1M 944K out
- Input / 1M tokens
- $1.25
- Output / 1M tokens
- $4.25
Where to run it
5 providers compared
All 5 providers charge the same: $1.25 / $4.25 per 1M input / output tokens.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| Modal | $1.25 | $4.25 | $0.15 | 1M | 262K | 100%24h | Cheapest |
| BaseTenFP4 | $1.25 | $4.25 | $0.15 | 1M | 944K | 99.7%24h | Cheapest |
| Fireworks | $1.25 | $4.25 | $0.15 | 1M | 944K | 99.6%24h | Cheapest |
| NebiusFP4 | $1.25 | $4.25 | — | 1M | 944K | 98.6%24h | Cheapest |
| Together | $1.25 | $4.25 | $0.15 | 1M | 944K | 97.4%24h | Cheapest |
Benchmarks
Benchmark scores
No benchmark scores yet — Epoch AI hasn't evaluated Muse Spark Open. Scores appear here automatically once it does.
Specs
Details
- Model ID
meta/muse-spark-open- Developer
- Meta
- Release date
- Oct 15, 2026 ·
- Context window
- 1,048,576 tokens
- Max output
- 943,718 tokens
- API price
- $1.25 / $4.25 per 1M input / output tokens
- Providers
- 5
- Input types
- text, image, video, file, audio
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- Yes
- Free tier
- No
Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.