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Muse Spark 1.3 (high) vs GPT-5.3-Codex (medium)

The average score is effectively tied at 9.1 vs 9.1. GPT-5.3-Codex (medium) has the lower benchmark cost at $1.318 vs $1.891. GPT-5.3-Codex (medium) is faster at 18.87s vs 52.87s, with pass rates of 78.3% vs 84.1%.

Last updated at: 2026-10-17

Compared models

Rank
#39
Total Output Tokens
369,142
Response Time (avg)
52.87s
Total Cost
$1.891
Rank
#37
Total Output Tokens
66,287
Response Time (avg)
18.87s
Total Cost
$1.318
Recommended model GPT-5.3-Codex (medium)

It has the best score here (9.1), while responding about 2.8x faster than Muse Spark 1.3 (high).

Detailed comparison

Metric Muse Spark 1.3 Muse Spark 1.3 high Release: 2026-09-02 GPT-5.3-Codex GPT-5.3-Codex medium Release: 2026-02-05
Score 9.1 9.1
Rank #39 #37
Reliability 10.0 10.0
Consistency 9.3 8.6
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 78.3% 84.1%
Flaky tests 2 4
Total Runs 69 69
Cost per result 11.121 7.753
Total Cost $1.891 $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 257,320 222,794
Output Tokens 14,459 7,357
Reasoning Tokens 354,683 58,930
Response Time (avg) 52.87s 18.87s
Response Time (max) 251.53s 100.93s
Response Time (total) 1216.04s 433.94s
Parameters ~1T total (~50B active) ~1.2T total (~80B active)
Availability Closed 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.

#39 Muse Spark 1.3

high
Cost
$0.050
Time
203.3s
Tokens
11,679 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 1.3 10.0 10.0 100.0% 0 51.66s 7,275 1,228 64,287
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.50s 7,302 535 10,890

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