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Claude Fable 5.1 (high) vs Qwen3.5-27B (medium)

The average score is effectively tied at 7.9 vs 7.9. Qwen3.5-27B (medium) has the lower benchmark cost at $1.135 vs $3.471. Claude Fable 5.1 (high) is faster at 13.30s vs 114.73s, with pass rates of 85.5% vs 76.8%.

Last updated at: 2026-10-01

Compared models

Rank
#98
Total Output Tokens
40,466
Response Time (avg)
13.30s
Total Cost
$3.471
Rank
#96
Total Output Tokens
635,288
Response Time (avg)
114.73s
Total Cost
$1.135
Recommended model Claude Fable 5.1 (high)

It has the best score here (7.9), while responding about 8.6x faster than Qwen3.5-27B (medium).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 high Release: 2026-09-02 Qwen3.5-27B Qwen3.5-27B medium Release: 2026-02-24
Score 7.9 7.9
Rank #98 #96
Reliability 10.0 10.0
Consistency 9.7 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 85.5% 76.8%
Flaky tests 1 6
Total Runs 69 69
Cost per result 18.264 8.104
Total Cost $3.471 $1.135
Input Price $10.000 / 1M $0.195 / 1M
Output Price $50.000 / 1M $1.560 / 1M
Total Input Tokens 144,676 288,919
Output Tokens 8,184 17,484
Reasoning Tokens 32,282 617,804
Response Time (avg) 13.30s 114.73s
Response Time (max) 40.17s 1026.43s
Response Time (total) 305.83s 2638.74s
Parameters ~9.5T total (~878B active) 27B
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#98 Claude Fable 5.1

high
Cost
$0.384
Time
102.5s
Tokens
7,824 tok

#96 Qwen3.5-27B

medium
Cost
$0.008
Time
62.0s
Tokens
3,099 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 5.1 8.4 7.4 88.9% 1 13.91s 10,608 520 6,503
Qwen3.5-27B 6.2 7.1 55.6% 1 160.69s 7,895 6,381 89,388

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