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Muse Spark Open (high) vs GPT-5.5 (low)

GPT-5.5 (low) leads on average score with 9.5 vs 9.2. Muse Spark Open (high) has the lower benchmark cost at $1.782 vs $1.822. GPT-5.5 (low) is faster at 11.91s vs 151.96s, with pass rates of 76.8% vs 87.0%.

Last updated at: 2026-10-19

Compared models

Rank
#30
Total Output Tokens
339,545
Response Time (avg)
151.96s
Total Cost
$1.782
Rank
#23
Total Output Tokens
31,065
Response Time (avg)
11.91s
Total Cost
$1.822
Recommended model GPT-5.5 (low)

It has the best score here (9.5), while responding about 12.8x faster than Muse Spark Open (high).

Detailed comparison

Metric Muse Spark Open Muse Spark Open high Release: 2026-10-15 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 9.2 9.5
Rank #30 #23
Reliability 9.4 10.0
Consistency 9.6 10.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 76.8% 87.0%
Flaky tests 1 0
Total Runs 69 69
Cost per result 10.481 9.109
Total Cost $1.782 $1.822
Input Price $1.250 / 1M $5.000 / 1M
Output Price $4.250 / 1M $30.000 / 1M
Cache Read Price $0.150 / 1M $0.500 / 1M
Cache Write Price N/A N/A
Total Input Tokens 270,889 177,939
Output Tokens 10,688 6,283
Reasoning Tokens 328,857 24,782
Response Time (avg) 151.96s 11.91s
Response Time (max) 960.01s 56.19s
Response Time (total) 3495.01s 273.82s
Parameters 816B total (42B active) ~1.5T total (~100B active)
Availability Weights available Closed

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.

#30 Muse Spark Open

high
Cost
$0.045
Time
239.2s
Tokens
10,710 tok

#23 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 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 Open 10.0 10.0 100.0% 0 33.49s 8,478 1,743 33,344
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

Quick Compare

Switch Comparison Pair

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