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MoonshotAI: Kimi K2.6 vs OpenAI: GPT-5 Nano

GPT-5 Nano (medium) leads on average score with 6.1 vs 5.8. GPT-5 Nano (medium) has the lower benchmark cost at $0.114 vs $0.184. Kimi K2.6 is faster at 19.58s vs 54.87s, with pass rates of 34.9% vs 56.1%.

Recommended modelGPT-5 Nano (medium)It has the best score here (6.1), while costing about 1.6x less than Kimi K2.6.

Last updated at: 2026-07-20

Metric Kimi K2.6 Kimi K2.6 none Release: 2026-04-20 GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07
Score 5.8 6.1
Rank #138 #128
Reliability 10.0 10.0
Consistency 9.3 7.0
Tests Correct
Attempt pass rate 34.9% 56.1%
Flaky tests 2 8
Total Runs 66 66
Cost per result 3.199 1.267
Total Cost $0.184 $0.114
Input Price $0.684 / 1M $0.050 / 1M
Output Price $3.420 / 1M $0.400 / 1M
Total Input Tokens 116,970 94,935
Output Tokens 30,253 12,042
Reasoning Tokens 0 261,056
Response Time (avg) 19.58s 54.87s
Response Time (max) 238.89s 227.89s
Response Time (total) 430.85s 822.99s

Hamster playing table tennis

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

#138 MoonshotAI: Kimi K2.6

none
Cost
$0.020
Time
127.4s
Tokens
4,429 tok

#128 GPT-5 Nano

medium
Cost
$0.006
Time
108.5s
Tokens
13,209 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
Kimi K2.6 5.5 9.8 33.3% 0 82.57s 5,986 14,754 0
GPT-5 Nano 7.0 7.7 55.6% 1 41.62s 7,305 740 41,152

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