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Claude Sonnet 5.5 (xhigh) 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 $1.069. Claude Sonnet 5.5 (xhigh) is faster at 13.17s vs 30.43s, with pass rates of 78.8% vs 69.7%.

Last updated at: 2026-09-29

Compared models

Rank
#79
Total Output Tokens
77,105
Response Time (avg)
13.17s
Total Cost
$1.069
Rank
#75
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 2.7x less than Claude Sonnet 5.5 (xhigh).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 xhigh Release: 2026-09-29 Inkling Small Inkling Small high Release: 2026-08-01
Score 8.3 8.4
Rank #79 #75
Reliability 10.0 10.0
Consistency 8.7 9.2
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 78.8% 69.7%
Flaky tests 4 2
Total Runs 66 66
Cost per result 7.123 2.868
Total Cost $1.069 $0.398
Input Price $2.000 / 1M $0.450 / 1M
Output Price $10.000 / 1M $1.200 / 1M
Total Input Tokens 148,643 85,669
Output Tokens 9,700 6,092
Reasoning Tokens 67,405 292,801
Response Time (avg) 13.17s 30.43s
Response Time (max) 54.91s 122.60s
Response Time (total) 289.67s 669.38s
Parameters ~1T total (~100B 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.

#79 Claude Sonnet 5.5

xhigh
Cost
$0.319
Time
258.6s
Tokens
31,969 tok

#75 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 Sonnet 5.5 8.2 7.2 88.9% 1 11.90s 10,608 555 9,501
Inkling Small 10.0 10.0 100.0% 0 93.23s 7,374 463 120,474

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