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Claude Opus 5 (low) vs Muse Spark Open (low)

The average score is effectively tied at 9.0 vs 8.9. Muse Spark Open (low) has the lower benchmark cost at $0.600 vs $2.350. Claude Opus 5 (low) is faster at 9.87s vs 21.62s, with pass rates of 84.1% vs 76.8%.

Last updated at: 2026-10-16

Compared models

Rank
#50
Total Output Tokens
23,416
Response Time (avg)
9.87s
Total Cost
$2.350
Rank
#53
Total Output Tokens
59,058
Response Time (avg)
21.62s
Total Cost
$0.600
Recommended model Muse Spark Open (low)

It has the best score here (8.9), while costing about 3.9x less than Claude Opus 5 (low).

Detailed comparison

Metric Claude Opus 5 Claude Opus 5 low Release: 2026-07-25 Muse Spark Open Muse Spark Open low Release: 2026-10-15
Score 9.0 8.9
Rank #50 #53
Reliability 10.0 9.9
Consistency 9.7 9.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 84.1% 76.8%
Flaky tests 1 3
Total Runs 69 69
Cost per result 12.367 3.746
Total Cost $2.350 $0.600
Input Price $5.000 / 1M $1.250 / 1M
Output Price $25.000 / 1M $4.250 / 1M
Cache Read Price $0.500 / 1M $0.150 / 1M
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 352,845 278,684
Output Tokens 16,553 10,151
Reasoning Tokens 7,007 48,907
Response Time (avg) 9.87s 21.62s
Response Time (max) 73.15s 119.16s
Response Time (total) 226.95s 497.25s
Parameters ~5T total (~500B active) 816B total (42B active)
Availability Closed Weights available

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.

#50 Claude Opus 5

low
Cost
$0.062
Time
30.2s
Tokens
2,615 tok

#53 Muse Spark Open

low
Cost
$0.014
Time
38.9s
Tokens
3,372 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
Claude Opus 5 7.8 7.4 77.8% 1 6.70s 10,590 2,442 760
Muse Spark Open 10.0 10.0 100.0% 0 9.97s 8,479 347 10,835

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