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MoonshotAI: Kimi K2.5 vs OpenAI: GPT-4o-mini

Summary

Kimi K2.5 vs GPT-4o-mini benchmark comparison: Kimi K2.5 leads on average score with 5.5 vs 5.0. GPT-4o-mini has the lower benchmark cost at $0.006 vs $0.027. GPT-4o-mini is faster at 1.77s vs 13.18s, with pass rates of 34.9% vs 23.8%.

Recommended model: Kimi K2.5 - It has the strongest score in this comparison (5.5) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-02

Metric Kimi K2.5 Kimi K2.5 none Release: 2026-01-27 GPT-4o-mini GPT-4o-mini none Release: 2024-07-18
Score 5.5 5.0
Rank #122 #144
Reliability 10.0 10.0
Consistency 8.9 9.9
Tests Correct
Attempt pass rate 34.9% 23.8%
Flaky tests 3 0
Total Runs 63 63
Cost per result 0.442 0.119
Total Cost $0.027 $0.006
Input Price $0.375 / 1M $0.150 / 1M
Output Price $2.025 / 1M $0.600 / 1M
Total Input Tokens 36,034 31,518
Output Tokens 6,657 1,982
Reasoning Tokens 0 0
Response Time (avg) 13.18s 1.77s
Response Time (max) 42.13s 7.58s
Response Time (total) 184.47s 24.80s

Generation showcase

Hamster playing table tennis

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

#122 MoonshotAI: Kimi K2.5

none
Cost
$0.015
Time
89.1s
Tokens
5,421 tok

#144 GPT-4o-mini

none
Cost
$0.001
Time
6.6s
Tokens
742 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 K2.5 3.6 8.4 8.3% 1 6.24s 652 373 0
GPT-4o-mini 4.8 10.0 25.0% 0 1.34s 618 186 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 5.5 10.0 33.3% 0 24.56s 7,311 4,708 0
GPT-4o-mini 3.2 9.6 0.0% 0 1.63s 7,314 367 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 2.8 2.1 33.3% 1 19.16s 12,264 748 0
GPT-4o-mini 3.0 10.0 0.0% 0 7.58s 8,298 568 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 7.3 5.8 83.3% 1 42.13s 7,180 187 0
GPT-4o-mini 10.0 10.0 100.0% 0 1.27s 7,161 183 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 5.3 10.0 33.3% 0 4.38s 753 29 0
GPT-4o-mini 3.0 10.0 0.0% 0 637ms 732 15 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 4.00s 483 76 0
GPT-4o-mini 4.0 10.0 0.0% 0 909ms 480 66 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 6.5 10.0 50.0% 0 2.67s 677 60 0
GPT-4o-mini 6.3 10.0 50.0% 0 1.11s 666 69 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 3.0 10.0 0.0% 0 4.04s 667 236 0
GPT-4o-mini 3.5 10.0 0.0% 0 1.21s 651 308 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 13.99s 5,835 220 0
GPT-4o-mini 10.0 10.0 100.0% 0 2.51s 5,400 205 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.5 3.0 10.0 0.0% 0 3.90s 212 20 0
GPT-4o-mini 3.0 10.0 0.0% 0 794ms 198 15 0

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