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Claude Fable 5 (medium) vs Muse Spark Open (low)

Muse Spark Open (low) leads on average score with 8.9 vs 8.9. Muse Spark Open (low) has the lower benchmark cost at $0.600 vs $5.089. Claude Fable 5 (medium) is faster at 16.84s vs 21.62s, with pass rates of 79.7% vs 76.8%.

Last updated at: 2026-10-16

Compared models

Rank
#57
Total Output Tokens
47,285
Response Time (avg)
16.84s
Total Cost
$5.089
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 8.5x less than Claude Fable 5 (medium).

Detailed comparison

Metric Claude Fable 5 Claude Fable 5 medium Release: 2026-06-10 Muse Spark Open Muse Spark Open low Release: 2026-10-15
Score 8.9 8.9
Rank #57 #53
Reliability 10.0 9.9
Consistency 9.6 9.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 79.7% 76.8%
Flaky tests 1 3
Total Runs 69 69
Cost per result 28.269 3.746
Total Cost $5.089 $0.600
Input Price $10.000 / 1M $1.250 / 1M
Output Price $50.000 / 1M $4.250 / 1M
Cache Read Price $1.000 / 1M $0.150 / 1M
Cache Write Price $12.500 / 1M N/A
Total Input Tokens 272,411 278,684
Output Tokens 35,497 10,151
Reasoning Tokens 11,788 48,907
Response Time (avg) 16.84s 21.62s
Response Time (max) 80.80s 119.16s
Response Time (total) 387.26s 497.25s
Parameters ~9.5T total (~878B 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.

#57 Claude Fable 5

medium
Cost
$0.606
Time
156.7s
Tokens
12,264 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 Fable 5 10.0 10.0 100.0% 0 15.59s 10,590 7,383 1,318
Muse Spark Open 10.0 10.0 100.0% 0 9.97s 8,479 347 10,835

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