- Score
- 8.6 (-0.17 points)
- Total Cost (Current Price)
- $0.061 · 95.2% cheaper
- Response Time (avg)
- 7.51s · 90.3% faster
Meta
Release: 2026-10-15
Tested on: 2026-10-16 00:20
meta/muse-spark-open::medium
816B total (42B active)MoEWeights available
Summary
Muse Spark Open scores 8.8 on AI BENCHY and ranks #61. It has 9.8 reliability, a 78.3% pass rate, $1.260 total cost, and 77.44s average response time.
What makes Muse Spark Open unique: It stands out most in Domain specific, where it ranks #1, while Anti-AI Tricks is its weakest area at #16.
Recommended alternatives
We recommend choosing one of these models instead:
- Score
- 9.4 (+0.62 points)
- Total Cost (Current Price)
- $0.183 · 85.5% cheaper
- Response Time (avg)
- 6.24s · 91.9% faster
- Score
- 9.0 (+0.20 points)
- Total Cost (Current Price)
- $0.089 · 93.0% cheaper
- Response Time (avg)
- 54.04s · 30.2% faster
Model facts
Researched on 2026-10-15
- Parameters
- 816B total (42B active)
- Architecture
- MoE
- Availability
- Weights available
- License
- Muse Model License
Open weights under the custom Muse Model License, with attribution, usage-policy and Model-as-a-Service revenue terms. The official model metadata reports 816B total and 42B active parameters; its chat template declares low, medium, high and xhigh reasoning strengths.
8.8
Consistency
8.2
9.8
$1.260
Total Output Tokens
220,815
Total Input Tokens
256,646
Input Price
$1.250 / 1M
Output Price
$4.250 / 1M
Cache Read Price
$0.150 / 1M
Cache Write Price
N/A
Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.
Flaky tests
5
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
#61 Muse Spark Open
medium- Cost
- $0.018
- Time
- 10.0s
- Tokens
- 4,265 tok
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
Muse Spark OpenmediumvsGPT-5.4mediumMuse Spark OpenmediumvsDeepSeek V4.1 FlashhighMuse Spark OpenmediumvsQwen3.8 MAXlowMuse Spark OpenmediumvsDeepSeek V4.1 FlashmediumMuse Spark OpenmediumvsPareto 26.9defaultMuse Spark OpenmediumvsMuse Spark 1.2lowMuse Spark OpenmediumvsClaude Fable 5mediumMuse Spark OpenmediumvsGPT-5.2mediumMuse Spark OpenmediumvsMuse Spark 1.1mediumMuse Spark OpenmediumvsQwen3.8 27BhighFree Available
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Agentic | 10.0 | 10.0 | |
| Anti-AI Tricks | 6.9 | 5.8 | |
| Coding | 8.2 | 7.2 | |
| Combined | 10.0 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 5.9 | 7.2 | |
| General Intelligence | 10.0 | 10.0 | |
| Instructions following | 7.3 | 5.8 | |
| Puzzle Solving | 8.4 | 9.9 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |