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OpenAI: GPT-5 Nano vs Thinking Machines: Inkling

The average score is effectively tied at 6.1 vs 6.1. GPT-5 Nano (medium) has the lower benchmark cost at $0.114 vs $0.187. Inkling (low) is faster at 5.15s vs 54.87s, with pass rates of 56.1% vs 54.6%.

Recommended modelInkling (low)It has the best score here (6.1), while responding about 10.6x faster than GPT-5 Nano (medium).

Last updated at: 2026-07-18

Metric GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07 Inkling Inkling low Release: 2026-07-18
Score 6.1 6.1
Rank #124 #119
Reliability 10.0 9.9
Consistency 7.0 8.6
Tests Correct
Attempt pass rate 56.1% 54.6%
Flaky tests 8 4
Total Runs 66 66
Cost per result 1.267 1.866
Total Cost $0.114 $0.187
Input Price $0.050 / 1M $1.000 / 1M
Output Price $0.400 / 1M $4.050 / 1M
Total Input Tokens 94,935 109,884
Output Tokens 12,042 8,579
Reasoning Tokens 261,056 10,343
Response Time (avg) 54.87s 5.15s
Response Time (max) 227.89s 41.58s
Response Time (total) 822.99s 113.39s

Hamster playing table tennis

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

#124 GPT-5 Nano

medium
Cost
$0.006
Time
108.5s
Tokens
13,209 tok

#119 Thinking Machines: Inkling

low
Cost
$0.002
Time
6.1s
Tokens
502 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
GPT-5 Nano 7.0 7.7 55.6% 1 41.62s 7,305 740 41,152
Inkling 5.1 7.2 22.2% 1 8.71s 7,374 355 4,961

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