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Anthropic: Claude Fable 5 vs Meta: Muse Spark 1.1

The average score is effectively tied at 8.6 vs 8.6. Muse Spark 1.1 (medium) has the lower benchmark cost at $1.357 vs $3.478. Claude Fable 5 (medium) is faster at 17.20s vs 24.97s, with pass rates of 78.8% vs 72.7%.

Recommended modelMuse Spark 1.1 (medium)It has the best score here (8.6), while costing about 2.6x less than Claude Fable 5 (medium).

Last updated at: 2026-07-25

Metric Claude Fable 5 Claude Fable 5 medium Release: 2026-06-10 Muse Spark 1.1 Muse Spark 1.1 medium Release: 2026-07-16
Score 8.6 8.6
Rank #22 #21
Reliability 10.0 10.0
Consistency 9.6 9.2
Tests Correct
Attempt pass rate 78.8% 72.7%
Flaky tests 1 2
Total Runs 66 66
Cost per result 20.459 9.041
Total Cost $3.478 $1.357
Input Price $10.000 / 1M $1.250 / 1M
Output Price $50.000 / 1M $4.250 / 1M
Total Input Tokens 89,643 142,567
Output Tokens 41,360 7,905
Reasoning Tokens 10,269 269,225
Response Time (avg) 17.20s 24.97s
Response Time (max) 80.80s 165.38s
Response Time (total) 378.41s 549.31s

Hamster playing table tennis

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

#22 Claude Fable 5

medium
Cost
$0.606
Time
156.7s
Tokens
12,264 tok

#21 Muse Spark 1.1

medium
Cost
$0.024
Time
29.2s
Tokens
5,774 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 1.1 10.0 10.0 100.0% 0 15.66s 8,562 347 23,562

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