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Muse Spark 1.3 (medium) vs GPT-5.5 (medium)

The average score is effectively tied at 9.0 vs 9.0. Muse Spark 1.3 (medium) has the lower benchmark cost at $1.075 vs $4.163. GPT-5.5 (medium) is faster at 38.97s vs 89.78s, with pass rates of 81.8% vs 87.9%.

Last updated at: 2026-09-02

Rank
#27
Total Output Tokens
223,994
Response Time (avg)
89.78s
Total Cost
$1.075
Rank
#22
Total Output Tokens
125,316
Response Time (avg)
38.97s
Total Cost
$4.163
Recommended model Muse Spark 1.3 (medium)

It has the best score here (9.0), while costing about 3.9x less than GPT-5.5 (medium).

Detailed comparison

Metric Muse Spark 1.3 Muse Spark 1.3 medium Release: 2026-09-02 GPT-5.5 GPT-5.5 medium Release: 2026-04-24
Score 9.0 9.0
Rank #27 #22
Reliability 9.3 10.0
Consistency 8.5 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 81.8% 87.9%
Flaky tests 4 3
Total Runs 66 66
Cost per result 6.716 23.127
Total Cost $1.075 $4.163
Input Price $1.250 / 1M $5.000 / 1M
Output Price $4.250 / 1M $30.000 / 1M
Total Input Tokens 98,062 80,668
Output Tokens 13,168 5,617
Reasoning Tokens 210,826 119,699
Response Time (avg) 89.78s 38.97s
Response Time (max) 356.29s 332.10s
Response Time (total) 1975.17s 857.43s
Parameters ~1T total (~50B active) ~1.5T total (~100B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#27 Muse Spark 1.3

medium
Cost
$0.025
Time
113.4s
Tokens
5,952 tok

#22 GPT-5.5

medium
Cost
$0.112
Time
71.9s
Tokens
3,807 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 1.3 10.0 10.0 100.0% 0 101.89s 7,275 1,374 43,595
GPT-5.5 8.8 7.8 88.9% 1 59.77s 7,305 362 24,959

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