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Muse Spark 1.2 (low) vs Grok 4.5 (medium)

The average score is effectively tied at 8.4 vs 8.5. Muse Spark 1.2 (low) has the lower benchmark cost at $0.655 vs $2.042. Muse Spark 1.2 (low) is faster at 9.77s vs 68.59s, with pass rates of 77.3% vs 83.3%.

Last updated at: 2026-09-18

Compared models

Rank
#56
Total Output Tokens
123,963
Response Time (avg)
9.77s
Total Cost
$0.655
Rank
#55
Total Output Tokens
299,460
Response Time (avg)
68.59s
Total Cost
$2.042
Recommended model Muse Spark 1.2 (low)

It has the best score here (8.4), while costing about 3.1x less than Grok 4.5 (medium).

Detailed comparison

Metric Muse Spark 1.2 Muse Spark 1.2 low Release: 2026-08-06 Grok 4.5 Grok 4.5 medium Release: 2026-07-08
Score 8.4 8.5
Rank #56 #55
Reliability 10.0 10.0
Consistency 9.0 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 77.3% 83.3%
Flaky tests 3 3
Total Runs 66 66
Cost per result 4.361 12.007
Total Cost $0.655 $2.042
Input Price $1.250 / 1M $2.000 / 1M
Output Price $4.250 / 1M $6.000 / 1M
Total Input Tokens 101,811 122,155
Output Tokens 8,025 5,514
Reasoning Tokens 115,938 293,946
Response Time (avg) 9.77s 68.59s
Response Time (max) 47.80s 436.38s
Response Time (total) 214.83s 1508.91s
Parameters ~1T total (~50B active) ~1.7T total (~170B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#56 Muse Spark 1.2

low
Cost
$0.019
Time
14.6s
Tokens
4,384 tok

#55 SpaceXAI: Grok 4.5

medium
Cost
$0.044
Time
59.4s
Tokens
7,512 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 1.2 8.4 7.4 88.9% 1 10.09s 7,275 343 19,717
Grok 4.5 7.6 7.2 77.8% 1 155.69s 9,579 390 104,634

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