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

The average score is effectively tied at 8.9 vs 8.9. Muse Spark Open (low) has the lower benchmark cost at $0.600 vs $2.018. Muse Spark Open (low) is faster at 21.62s vs 28.15s, with pass rates of 75.4% vs 76.8%.

Last updated at: 2026-10-16

Compared models

Rank
#54
Total Output Tokens
392,846
Response Time (avg)
28.15s
Total Cost
$2.018
Rank
#53
Total Output Tokens
59,058
Response Time (avg)
21.62s
Total Cost
$0.600
Recommended model Muse Spark Open (low)

It has the best score here (8.9), while costing about 3.4x less than Muse Spark 1.2 (high).

Detailed comparison

Metric Muse Spark 1.2 Muse Spark 1.2 high Release: 2026-08-06 Muse Spark Open Muse Spark Open low Release: 2026-10-15
Score 8.9 8.9
Rank #54 #53
Reliability 9.9 9.9
Consistency 8.4 9.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 75.4% 76.8%
Flaky tests 5 3
Total Runs 69 69
Cost per result 13.448 3.746
Total Cost $2.018 $0.600
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 277,967 278,684
Output Tokens 9,240 10,151
Reasoning Tokens 383,606 48,907
Response Time (avg) 28.15s 21.62s
Response Time (max) 192.00s 119.16s
Response Time (total) 647.40s 497.25s
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.

#54 Muse Spark 1.2

high
Cost
$0.057
Time
34.7s
Tokens
13,356 tok

#53 Muse Spark Open

low
Cost
$0.014
Time
38.9s
Tokens
3,372 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 10.0 10.0 100.0% 0 22.24s 7,275 351 47,857
Muse Spark Open 10.0 10.0 100.0% 0 9.97s 8,479 347 10,835

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