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Claude Fable 5.1 (medium) vs Inkling Small (high)

Inkling Small (high) leads on average score with 8.4 vs 8.3. Inkling Small (high) has the lower benchmark cost at $0.398 vs $2.909. Claude Fable 5.1 (medium) is faster at 11.67s vs 30.43s, with pass rates of 81.8% vs 69.7%.

Last updated at: 2026-09-02

Rank
#48
Total Output Tokens
31,152
Response Time (avg)
11.67s
Total Cost
$2.909
Rank
#46
Total Output Tokens
298,893
Response Time (avg)
30.43s
Total Cost
$0.398
Recommended model Inkling Small (high)

It has the best score here (8.4), while costing about 7.3x less than Claude Fable 5.1 (medium).

Detailed comparison

Metric Claude Fable 5.1 Claude Fable 5.1 medium Release: 2026-09-02 Inkling Small Inkling Small high Release: 2026-08-01
Score 8.3 8.4
Rank #48 #46
Reliability 10.0 10.0
Consistency 7.8 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 81.8% 69.7%
Flaky tests 6 2
Total Runs 66 66
Cost per result 19.392 2.868
Total Cost $2.909 $0.398
Input Price $10.000 / 1M $0.450 / 1M
Output Price $50.000 / 1M $1.200 / 1M
Total Input Tokens 135,112 85,669
Output Tokens 7,594 6,092
Reasoning Tokens 23,558 292,801
Response Time (avg) 11.67s 30.43s
Response Time (max) 36.59s 122.60s
Response Time (total) 256.73s 669.38s
Parameters ~9.5T total (~878B active) 276B total (12B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#48 Claude Fable 5.1

medium
Cost
$0.244
Time
65.9s
Tokens
5,025 tok

#46 Thinking Machines: Inkling Small

high
Cost
$0.006
Time
34.7s
Tokens
4,735 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 7.0 5.0 77.8% 2 10.99s 10,608 525 4,376
Inkling Small 10.0 10.0 100.0% 0 93.23s 7,374 463 120,474

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