Model specification · Meta
Muse Spark Open
meta/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...
SpecificationsReported values
- Context window
- 1.0M
- Maximum output
- 262K
- Architecture
- text+image+file+audio+video->text
- Tokenizer
- Other
- Knowledge cutoff
- —
- Moderated
- No
- Input modalities
- textimagevideofileaudio
- Output modalities
- text
Full pricingUSD where reported
| Price | Standard |
|---|---|
| Input | $1.25 / M |
| Output | $4.25 / M |
Benchmark indexesReported indexes
- Intelligence
- 24.9
- Coding
- —
- Agentic
- —
- Design Arena Elo
- 1285
Example workload costsStandard pricing only
| Workload | Input / output | Cache share | Estimated cost |
|---|---|---|---|
| Quick check | 10K / 1K × 1 | 0% | $0.017 |
| Long analysis | 100K / 4K × 1 | 50% | $0.087 |
| Workday | 20K / 2K × 1,000 | 30% | $26.90 |
More from MetaAll Meta models
| Model | Context | Input / M | Output / M | Intel. |
|---|---|---|---|---|
| Muse Wonder | 1.0M | $4.00 | $20.00 | 43.6 |
| Muse Spark 1.3 | 1.0M | $1.25 | $4.25 | 36.6 |
| Muse Glimmer 30B | 131K | $0.300 | $1.20 | 6.3 |