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Muse Spark Open (high) vs GPT-5.3-Codex (medium)

Muse Spark Open (high) leads on average score with 9.2 vs 9.1. GPT-5.3-Codex (medium) has the lower benchmark cost at $1.318 vs $1.782. GPT-5.3-Codex (medium) is faster at 18.87s vs 151.96s, with pass rates of 76.8% vs 84.1%.

Last updated at: 2026-10-16

Compared models

Rank
#30
Total Output Tokens
339,545
Response Time (avg)
151.96s
Total Cost
$1.782
Rank
#37
Total Output Tokens
66,287
Response Time (avg)
18.87s
Total Cost
$1.318
Recommended model GPT-5.3-Codex (medium)

Its score stays close to the best score here (9.1 vs 9.2), while responding about 8.1x faster than Muse Spark Open (high).

Detailed comparison

Metric Muse Spark Open Muse Spark Open high Release: 2026-10-15 GPT-5.3-Codex GPT-5.3-Codex medium Release: 2026-02-05
Score 9.2 9.1
Rank #30 #37
Reliability 9.4 10.0
Consistency 9.6 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 76.8% 84.1%
Flaky tests 1 4
Total Runs 69 69
Cost per result 10.481 7.753
Total Cost $1.782 $1.318
Input Price $1.250 / 1M $1.750 / 1M
Output Price $4.250 / 1M $14.000 / 1M
Cache Read Price $0.150 / 1M $0.175 / 1M
Cache Write Price N/A N/A
Total Input Tokens 270,889 222,794
Output Tokens 10,688 7,357
Reasoning Tokens 328,857 58,930
Response Time (avg) 151.96s 18.87s
Response Time (max) 960.01s 100.93s
Response Time (total) 3495.01s 433.94s
Parameters 816B total (42B active) ~1.2T total (~80B 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

#37 GPT-5.3-Codex

medium
Cost
$0.049
Time
54.9s
Tokens
3,580 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-5.3-Codex 10.0 10.0 100.0% 0 19.50s 7,302 535 10,890

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