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MoonshotAI: Kimi K2.7 Code vs OpenAI: GPT-5.3 Chat

Summary

Kimi K2.7 Code vs GPT-5.3 Chat benchmark comparison: GPT-5.3 Chat leads on average score with 7.5 vs 7.0. GPT-5.3 Chat has the lower benchmark cost at $0.433 vs $0.669. GPT-5.3 Chat is faster at 6.34s vs 83.60s, with pass rates of 66.7% vs 66.7%.

Recommended model: GPT-5.3 Chat - It has the best score here (7.5), while costing about 1.5x less 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-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03
Score 7.0 7.5
Rank #65 #47
Reliability 9.2 10.0
Consistency 7.7 8.1
Tests Correct
Attempt pass rate 66.7% 66.7%
Flaky tests 6 5
Total Runs 63 63
Cost per result 6.074 3.605
Total Cost $0.669 $0.433
Input Price $0.950 / 1M $1.750 / 1M
Output Price $4.000 / 1M $14.000 / 1M
Total Input Tokens 25,991 34,209
Output Tokens 80,516 26,617
Reasoning Tokens 161,391 0
Response Time (avg) 83.60s 6.34s
Response Time (max) 365.80s 18.33s
Response Time (total) 1671.99s 133.13s

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

#47 GPT-5.3 Chat

none
Cost
$0.008
Time
8.1s
Tokens
634 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-5.3 Chat 6.7 8.1 58.3% 1 3.86s 606 3,167 0
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-5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 6,632 0
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-5.3 Chat 10.0 10.0 100.0% 0 11.96s 11,019 2,614 0
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-5.3 Chat 10.0 10.0 100.0% 0 2.21s 7,140 942 0
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-5.3 Chat 3.5 4.4 33.3% 2 13.01s 723 8,264 0
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-5.3 Chat 4.6 10.0 0.0% 0 1.99s 477 319 0
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-5.3 Chat 9.8 10.0 100.0% 0 3.51s 660 1,491 0
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-5.3 Chat 10.0 10.0 100.0% 0 2.99s 642 1,758 0
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-5.3 Chat 10.0 10.0 100.0% 0 8.36s 5,445 861 0
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-5.3 Chat 3.0 10.0 0.0% 0 4.38s 195 569 0

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