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Muse Spark 1.2 (low) vs Muse Spark Open (medium)

The average score is effectively tied at 8.7 vs 8.8. Muse Spark 1.2 (low) has the lower benchmark cost at $0.881 vs $1.260. Muse Spark 1.2 (low) is faster at 11.81s vs 77.44s, with pass rates of 78.3% vs 78.3%.

Last updated at: 2026-10-16

Compared models

Rank
#64
Total Output Tokens
132,231
Response Time (avg)
11.81s
Total Cost
$0.881
Rank
#61
Total Output Tokens
220,815
Response Time (avg)
77.44s
Total Cost
$1.260
Recommended model Muse Spark 1.2 (low)

It has the best score here (8.7), while responding about 6.6x faster than Muse Spark Open (medium).

Detailed comparison

Metric Muse Spark 1.2 Muse Spark 1.2 low Release: 2026-08-06 Muse Spark Open Muse Spark Open medium Release: 2026-10-15
Score 8.7 8.8
Rank #64 #61
Reliability 10.0 9.8
Consistency 9.1 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 78.3% 78.3%
Flaky tests 3 5
Total Runs 69 69
Cost per result 5.504 8.396
Total Cost $0.881 $1.260
Input Price $1.250 / 1M $1.250 / 1M
Output Price $4.250 / 1M $4.250 / 1M
Cache Read Price $0.150 / 1M $0.150 / 1M
Cache Write Price N/A N/A
Total Input Tokens 254,914 256,646
Output Tokens 10,303 10,490
Reasoning Tokens 121,928 210,325
Response Time (avg) 11.81s 77.44s
Response Time (max) 56.77s 643.19s
Response Time (total) 271.60s 1781.16s
Parameters ~1T total (~50B active) 816B total (42B active)
Availability Closed Weights available

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#64 Muse Spark 1.2

low
Cost
$0.019
Time
14.6s
Tokens
4,384 tok

#61 Muse Spark Open

medium
Cost
$0.018
Time
10.0s
Tokens
4,265 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Muse Spark 1.2 8.4 7.4 88.9% 1 10.09s 7,275 343 19,717
Muse Spark Open 8.2 7.2 88.9% 1 18.01s 8,478 821 18,472

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