Muse Spark Open Extra High
| Released | 2026-10-15 |
|---|---|
| Price per 1M | $1.25 in · $4.25 out |
| Overall score | 58.4 · rank 143 |
| Context window | 1,048,576 tokens |
| Provider | Meta |
| Weights | Open weights (Muse Model License) |
| Configuration | Extra High |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 58.4 | 143 | 18 |
| Overall: Coding | 57.8 | 147 | 13 |
| Overall: Reasoning | 59.4 | 123 | 10 |
| Overall: Agentic work | 58.3 | 155 | 12 |
| Overall: Frontend | 57.7 | 126 | 3 |
| Coding | 57.3 | 147 | 2 |
| Agents | 58.4 | 107 | 5 |
| Reasoning | 59.4 | 141 | 5 |
| Math | 59.6 | 55 | 3 |
| Knowledge | 58.9 | 46 | 2 |
| Frontend | 57.9 | 66 | 1 |
| Value vs price | +6.2 | 111 |
Evidence
Coding 57.3 ±1.8
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Code Migration v1.1 | 26.9% | Vals AI | 2026-11-09 |
| SciCode | 58.5% | Epoch AI | 2026-11-11 |
Agents 58.4 ±2.1
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Terminal-Bench 4.0 (Vals run) | 6.6% | Vals AI | 2026-11-09 |
| EMB v1.1 (Excel financial modeling) | 62.0% | Vals AI | 2026-11-09 |
| Tax Agent Bench | 26.3% | Vals AI | 2026-11-09 |
| Finance Agent v2.1 | 60.7% | Vals AI | 2026-11-09 |
| HLAB-Vals 1.1 (legal agent) | 25.0% | Vals AI | 2026-11-09 |
Reasoning 59.4 ±2.0
| Benchmark | Result | Source | Date |
|---|---|---|---|
| GPQA Diamond | 88.6% | Epoch AI | 2026-10-15 |
| ARC-AGI-2 | 57.5% | Epoch AI | 2026-11-11 |
| ARC-AGI-2 (ARC Prize verified) | 57.5% | ARC Prize | 2026-11-11 |
| CritPt | 14.9% | Epoch AI | 2026-11-11 |
| ARC-AGI-1 (ARC Prize verified) | 89.0% | ARC Prize | 2026-11-11 |
| ARC-AGI-1 | 89.0% | Epoch AI | 2026-11-11 |
| ARC-AGI-3 | 0.1% | ARC Prize | 2026-11-11 |
Math 59.6 ±2.0
| Benchmark | Result | Source | Date |
|---|---|---|---|
| FrontierMath Tiers 1-3 | 69.8% | Epoch AI | 2026-10-15 |
| FrontierMath Tier 4 | 31.7% | Epoch AI | 2026-10-15 |
| OTIS Mock AIME 2024-2025 | 98.1% | Epoch AI | 2026-10-15 |
Knowledge 58.9 ±2.7
| Benchmark | Result | Source | Date |
|---|---|---|---|
| SimpleQA Verified | 56.6% | Epoch AI | 2026-10-15 |
| Legal Research Bench | 38.5% | Vals AI | 2026-11-09 |
Frontend 57.9 ±0.8
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Vibe Code Bench v1.1 | 76.2% | Vals AI | 2026-11-09 |
Results not used in the score
| Benchmark | Result | Source | Why not used |
|---|---|---|---|
| ARC-AGI-3 | 0.4% | ARC Prize | Lower duplicate run on the same benchmark |
Names matched to this model
muse-spark-open-xhigh