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MoonshotAI: Kimi K2.7 Code vs OpenAI: GPT-5.5

Summary

Kimi K2.7 Code vs GPT-5.5 benchmark comparison: GPT-5.5 leads on average score with 9.3 vs 7.0. Kimi K2.7 Code has the lower benchmark cost at $0.669 vs $0.907. GPT-5.5 is faster at 9.76s vs 83.60s, with pass rates of 66.7% vs 85.7%.

Recommended model: GPT-5.5 - It has the best score here (9.3), while responding about 8.6x faster than Kimi K2.7 Code.

Last updated at: 2026-06-12

Metric Kimi K2.7 Code Kimi K2.7 Code medium Release: 2026-06-12 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 7.0 9.3
Rank #65 #5
Reliability 9.2 10.0
Consistency 7.7 10.0
Tests Correct
Attempt pass rate 66.7% 85.7%
Flaky tests 6 0
Total Runs 63 63
Cost per result 6.074 5.035
Total Cost $0.669 $0.907
Input Price $0.950 / 1M $5.000 / 1M
Output Price $4.000 / 1M $30.000 / 1M
Total Input Tokens 25,991 34,209
Output Tokens 80,516 2,046
Reasoning Tokens 161,391 22,460
Response Time (avg) 83.60s 9.76s
Response Time (max) 365.80s 56.19s
Response Time (total) 1671.99s 204.92s

Generation showcase

Hamster playing table tennis

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

#65 MoonshotAI: Kimi K2.7 Code

medium
Cost
$0.025
Time
138.0s
Tokens
6,093 tok

#5 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 7.3 5.8 83.3% 2 11.56s 618 3,048 5,041
GPT-5.5 10.0 10.0 100.0% 0 4.41s 606 238 1,020
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 7.6 7.2 77.8% 1 146.73s 4,650 1,864 25,635
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 4.7 1.6 66.7% 1 34.83s 11,271 444 3,906
GPT-5.5 10.0 10.0 100.0% 0 9.56s 11,019 303 717
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 10.0 10.0 100.0% 0 12.27s 7,014 248 2,569
GPT-5.5 10.0 10.0 100.0% 0 3.28s 7,140 228 157
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 5.3 7.2 44.4% 1 213.29s 431 55,572 63,639
GPT-5.5 5.3 10.0 33.3% 0 28.05s 723 69 11,609
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 10.0 10.0 100.0% 0 10.78s 477 1,024 1,071
GPT-5.5 10.0 10.0 100.0% 0 5.17s 477 133 245
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 9.9 10.0 100.0% 0 5.39s 669 725 1,232
GPT-5.5 9.9 10.0 100.0% 0 3.74s 660 93 415
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 5.9 7.7 44.4% 1 41.00s 651 15,438 17,368
GPT-5.5 10.0 10.0 100.0% 0 4.74s 642 279 954
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 3.0 10.0 0.0% 0 0ms 0 0 0
GPT-5.5 10.0 10.0 100.0% 0 4.96s 5,445 250 101
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.7 Code 3.0 10.0 0.0% 0 341.76s 210 2,153 40,930
GPT-5.5 3.0 10.0 0.0% 0 10.06s 195 30 840

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