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

Muse Spark 1.3 (high) leads on average score with 9.0 vs 8.9. GPT-5.3-Codex (medium) has the lower benchmark cost at $0.988 vs $1.252. GPT-5.3-Codex (medium) is faster at 16.91s vs 117.06s, with pass rates of 81.8% vs 83.3%.

Last updated at: 2026-09-02

Rank
#24
Total Output Tokens
265,177
Response Time (avg)
117.06s
Total Cost
$1.252
Rank
#28
Total Output Tokens
60,374
Response Time (avg)
16.91s
Total Cost
$0.988
Recommended model GPT-5.3-Codex (medium)

Its score stays close to the best score here (8.9 vs 9.0), while responding about 6.9x 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 9.0 8.9
Rank #24 #28
Reliability 9.5 10.0
Consistency 8.9 8.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 81.8% 83.3%
Flaky tests 3 4
Total Runs 66 66
Cost per result 7.361 6.171
Total Cost $1.252 $0.988
Input Price $1.250 / 1M $1.750 / 1M
Output Price $4.250 / 1M $14.000 / 1M
Total Input Tokens 99,477 81,187
Output Tokens 14,053 6,258
Reasoning Tokens 251,124 54,116
Response Time (avg) 117.06s 16.91s
Response Time (max) 470.12s 100.93s
Response Time (total) 2575.43s 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.

#24 Muse Spark 1.3

high
Cost
$0.050
Time
203.3s
Tokens
11,679 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% 0 146.96s 7,275 2,003 59,912
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.50s 7,302 535 10,890

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