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

The average score is effectively tied at 9.0 vs 8.9. Muse Spark 1.3 (low) has the lower benchmark cost at $0.633 vs $0.988. GPT-5.3-Codex (medium) is faster at 16.91s vs 43.67s, with pass rates of 83.3% vs 83.3%.

Last updated at: 2026-09-02

Rank
#25
Total Output Tokens
117,915
Response Time (avg)
43.67s
Total Cost
$0.633
Rank
#28
Total Output Tokens
60,374
Response Time (avg)
16.91s
Total Cost
$0.988
Recommended model GPT-5.3-Codex (medium)

It has the best score here (8.9), while responding about 2.6x faster than Muse Spark 1.3 (low).

Detailed comparison

Metric Muse Spark 1.3 Muse Spark 1.3 low Release: 2026-09-02 GPT-5.3-Codex GPT-5.3-Codex medium Release: 2026-02-05
Score 9.0 8.9
Rank #25 #28
Reliability 9.6 10.0
Consistency 9.0 8.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 83.3% 83.3%
Flaky tests 3 4
Total Runs 66 66
Cost per result 3.720 6.171
Total Cost $0.633 $0.988
Input Price $1.250 / 1M $1.750 / 1M
Output Price $4.250 / 1M $14.000 / 1M
Total Input Tokens 104,966 81,187
Output Tokens 10,208 6,258
Reasoning Tokens 107,707 54,116
Response Time (avg) 43.67s 16.91s
Response Time (max) 190.38s 100.93s
Response Time (total) 960.70s 372.03s
Parameters ~1T total (~50B active) ~1.2T total (~80B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#25 Muse Spark 1.3

low
Cost
$0.017
Time
83.9s
Tokens
3,959 tok

#28 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 53.93s 7,275 1,047 21,679
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.50s 7,302 535 10,890

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