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uxwizz.com
#53

Muse Spark Open

Meta Release: 2026-10-15 Tested on: 2026-10-16 00:20 meta/muse-spark-open::low
816B total (42B active)MoEWeights available

Summary

Muse Spark Open scores 8.9 on AI BENCHY and ranks #53. It has 9.9 reliability, a 76.8% pass rate, $0.600 total cost, and 21.62s average response time.

What makes Muse Spark Open unique: It stands out most in Domain specific, where it ranks #4, while General Intelligence is its weakest area at #15. Its total benchmark cost is unusually low for its score range.

Model facts

Researched on 2026-10-15

Reported
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.

Score

8.9

Consistency

9.1

Total Output Tokens

59,058

Total Input Tokens

278,684

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.

Tests Correct

Wrong Tests: 7

Attempt pass rate: 76.8%

Flaky tests

3

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

21.62s

Response Time (max): 119.16s

Response Time (total): 497.25s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#53 Muse Spark Open

low
Cost
$0.014
Time
38.9s
Tokens
3,372 tok

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 9.2 8.4
Coding 10.0 10.0
Combined 8.4 10.0
Data parsing and extraction 10.0 10.0
Domain specific 5.3 10.0
General Intelligence 6.1 3.1
Instructions following 8.0 6.8
Puzzle Solving 10.0 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models