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Claude Fable 5.1 (low) vs Granite 4.2 8B (medium)

Claude Fable 5.1 (low) leads on average score with 6.2 vs 6.1. Granite 4.2 8B (medium) has the lower benchmark cost at $0.029 vs $3.395. Claude Fable 5.1 (low) is faster at 11.40s vs 50.47s, with pass rates of 55.1% vs 37.7%.

Last updated at: 2026-10-01

Compared models

Rank
#230
Total Output Tokens
26,073
Response Time (avg)
11.40s
Total Cost
$3.395
Rank
#235
Total Output Tokens
50,147
Response Time (avg)
50.47s
Total Cost
$0.029
Recommended model Granite 4.2 8B (medium)

Its score stays close to the best score here (6.1 vs 6.2), while costing about 120.8x less than Claude Fable 5.1 (low).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 low Release: 2026-09-02 Granite 4.2 8B Granite 4.2 8B medium Release: 2026-09-02
Score 6.2 6.1
Rank #230 #235
Reliability 10.0 8.9
Consistency 8.9 9.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 55.1% 37.7%
Flaky tests 3 1
Total Runs 69 69
Cost per result 30.862 0.354
Total Cost $3.395 $0.029
Input Price $10.000 / 1M $0.060 / 1M
Output Price $50.000 / 1M $0.250 / 1M
Total Input Tokens 209,116 259,708
Output Tokens 10,031 16,567
Reasoning Tokens 16,042 33,580
Response Time (avg) 11.40s 50.47s
Response Time (max) 34.77s 557.96s
Response Time (total) 262.14s 1160.91s
Parameters ~9.5T total (~878B active) 8B
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#230 Claude Fable 5.1

low
Cost
$0.126
Time
28.5s
Tokens
2,652 tok

#235 IBM: Granite 4.2 8B

medium
Provider returned error
Cost
$0.000
Time
0.2s
Tokens
0 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 3.4 10.0 0.0% 0 6.75s 10,608 1,753 0
Granite 4.2 8B 5.5 10.0 33.3% 0 12.09s 8,439 2,445 3,900

Quick Compare

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