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Claude Fable 5 (medium) vs Qwen3.8 27B (high)

Claude Fable 5 (medium) leads on average score with 8.6 vs 8.4. Qwen3.8 27B (high) has the lower benchmark cost at ~$0.287 vs $3.004. Claude Fable 5 (medium) is faster at 15.01s vs 167.89s, with pass rates of 78.8% vs 77.3%.

Last updated at: 2026-08-20

Rank
#33
Total Output Tokens
42,146
Response Time (avg)
15.01s
Total Cost
$3.004
Rank
#42
Total Output Tokens
656,635
Response Time (avg)
167.89s
Total Cost
~$0.287
Recommended model Claude Fable 5 (medium)

It has the best score here (8.6), while responding about 11.2x faster than Qwen3.8 27B (high).

Detailed comparison

Metric Claude Fable 5 Claude Fable 5 medium Release: 2026-06-10 Qwen3.8 27B Qwen3.8 27B high Release: 2026-08-14
Score 8.6 8.4
Rank #33 #42
Reliability 10.0 9.6
Consistency 9.6 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 77.3%
Flaky tests 1 2
Total Runs 66 66
Cost per result 17.669 ~1.792
Total Cost $3.004 ~$0.287
Input Price $10.000 / 1M N/A
Output Price $50.000 / 1M N/A
Total Input Tokens 89,640 100,179
Output Tokens 33,092 904
Reasoning Tokens 9,054 655,731
Response Time (avg) 15.01s 167.89s
Response Time (max) 80.80s 640.85s
Response Time (total) 330.15s 3693.54s
Parameters ~9.5T total (~878B active) 27.3B
Availability Closed Weights available

Model generation showcase

Hamster playing table tennis

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

#33 Claude Fable 5

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

#42 Qwen3.8 27B

high
Cost
~$0.008
Time
270.1s
Tokens
18,963 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
Qwen3.8 27B 8.1 7.0 88.9% 1 248.62s 8,235 346 143,335

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