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MoonshotAI: Kimi K2.6 vs OpenAI: GPT-5.5

GPT-5.5 (low) leads on average score with 9.3 vs 7.2. Kimi K2.6 (medium) has the lower benchmark cost at $1.036 vs $1.253. GPT-5.5 (low) is faster at 10.13s vs 109.98s, with pass rates of 63.6% vs 86.4%.

Recommended modelGPT-5.5 (low)It has the best score here (9.3), while responding about 10.9x faster than Kimi K2.6 (medium).

Last updated at: 2026-07-20

Metric Kimi K2.6 Kimi K2.6 medium Release: 2026-04-20 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 7.2 9.3
Rank #68 #6
Reliability 9.4 10.0
Consistency 8.3 10.0
Tests Correct
Attempt pass rate 63.6% 86.4%
Flaky tests 4 0
Total Runs 66 66
Cost per result 9.821 6.594
Total Cost $1.036 $1.253
Input Price $0.684 / 1M $5.000 / 1M
Output Price $3.420 / 1M $30.000 / 1M
Total Input Tokens 68,902 80,058
Output Tokens 111,680 5,378
Reasoning Tokens 279,860 23,040
Response Time (avg) 109.98s 10.13s
Response Time (max) 876.20s 56.19s
Response Time (total) 2309.56s 222.82s

Hamster playing table tennis

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

#68 MoonshotAI: Kimi K2.6

medium
Cost
$0.013
Time
103.4s
Tokens
3,620 tok

#6 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 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 5.7 8.6 33.3% 0 214.42s 2,925 9,970 77,189
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

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