All models
Meta
Muse Spark Open balancedruns locally
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...
Input / 1M
$1.25
USD per million tokens
Output / 1M
$4.25
USD per million tokens
Est. cost / token
$0.000002
$2.00 per 1M, 3:1 mix
Context window
1.05M
max output 944K
Major features
VisionOpen weightsCachingReasoningJSON schemaTools
Task suitability (heuristic 1–5, not a benchmark)
- coding4
- reasoning4
- math4
- summarization4
- extraction4
- classification4
- chat4
- creative4
- translation4
- vision4
- long context5
- agentic4
Run it locally
Will it run on my machine? →| Quantization | Quality | Memory needed (8K ctx) |
|---|---|---|
| Q2_K | poor | 370 GB |
| Q3_K_M | fair | 430 GB |
| Q4_K_Mrecommended | good | 536 GB |
| Q5_K_M | very good | 622 GB |
| Q6_K | excellent | 716 GB |
| Q8_0 | near-lossless | 925 GB |
| F16 | lossless | 1734 GB |
Estimates. Mixture-of-experts: memory covers all parameters; only the active ones are used per token, so it runs faster than its size suggests.
Price history
| Recorded | Input | Output | Cached | Source |
|---|---|---|---|---|
| 2026-11-05 03:20 | $1.25 | $4.25 | $0.15 | openrouter |
A row is added whenever a sync detects a price change. Vendor pricing source
Pricing (USD per 1M tokens)
- Input
- $1.25
- Output
- $4.25
- Cached input
- $0.15
- Blended (3:1)
- $2.00
Details
- Company
- Meta
- Version
- —
- Family
- Muse
- Released
- 2026-10-15
- Parameters
- 822B (42B active)
- Max output
- 944K
- Open weights
- Yes
- Inputs
- audio, file, image, text, video
- Last synced
- 32 min ago