Muse Spark 1.3
Muse Spark 1.3MetaProprietaryReasoningReleased Sep 2, 2026Input: text, image, video, file
Overall score
—
Not enough evidence to rank yet
Context window
1M
1,000,000 tokens
Price per 1M tokens
$1.25 in · $4.25 out
Source: BenchLM
Blended price
$2.00
3:1 input:output tokens
Output speed
—
Not measured yet
Category scores
Scores per capability area with the model's rank among ranked models in that category.
- 1Reasoning82.0
- 2Math78.5
- 3Agentic & tool use76.1
- 4Coding68.0
- 5Knowledge68.0
Benchmark results (19)
As reported in system cards, papers and public evaluations. Position compares this model with every other model reporting the same benchmark.
Agentic & tool use
| Terminal-Bench 2.1 | 88.8 | #6 of 68 |
| MazeBench | 0 | #20 of 42 |
| JobBench | 64.9 | #3 of 34 |
| AutomationBench | 49.4 | #9 of 25 |
| OSWorld 2.0 | 66.9 | #4 of 24 |
| DeepSearchQA | 89.4 | #9 of 20 |
| ApprenticeBench | 19 | #8 of 18 |
| CWE-bench v1 | 55.0 | #7 of 11 |
Coding
| DeepSWE | 75.4 | #5 of 50 |
| Bug Hunt Bench | 32.2 | #10 of 23 |
| FrontierSWE v2 | 25.8 | #13 of 20 |
| SWE-Atlas Codebase QnA | 59.4 | #2 of 4 |
Reasoning
| MRCR v2 256K-512K | 98.5 | #2 of 2 |
| MRCR v2 512K-1M | 98.1 | #1 of 2 |
Math
| FrontierMath v2 (Tiers 1-3) | 74.035 | #21 of 64 |
| FrontierMath v2 (Tier 4) | 46.341 | #19 of 51 |
Multimodal
| Design Arena Website | 1356 | #2 of 91 |
Instruction following
| Gray Swan IPI (15 attempts)(lower is better) | 15.9 | #8 of 12 |
Pricing by source
USD per 1M tokens.
| Source | Input | Output | Cached in |
|---|---|---|---|
| List price (BenchLM) | $1.25 | $4.25 | $0.15 |
| OpenRouter meta/muse-spark-1.3 | $1.25 | $4.25 | $0.15 |
Meta Model API lists `muse-spark-1.3` at $1.25 input, $0.15 cached input, and $4.25 output per million tokens. Meta separately lists `muse-spark-1.3-contributor`, whose data may be used to improve Meta products, at $0.10 input, $0.002 cached input, and $0.20 output per million tokens; the standard non-contributor SKU is the headline rate.
Arena ratings
Human-preference ratings from LMArena. Best-rated variant shown.
| Text(Max) | 1490 | #12 · 17.6K votes |
| WebDev (coding)(Max) | 1659 | #14 · 9.4K votes |
| Vision(Max) | 1308 | #12 · 5.4K votes |
| Documents(max) | 1471 | #15 · 1K votes |
Speed
Measured by us through OpenRouter (median of trials).
Not measured yet.
Related models
Same family
- Muse Spark 1.265.9
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