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MoonshotAI: Kimi K3 vs OpenAI: GPT-5 Mini

Summary

The average score is effectively tied at 8.5 vs 8.5. GPT-5 Mini (medium) has the lower benchmark cost at $0.159 vs $3.112. GPT-5 Mini (medium) is faster at 23.64s vs 122.48s, with pass rates of 82.5% vs 63.5%.

Recommended modelGPT-5 Mini (medium)It has the best score here (8.5), while costing about 19.7x less than Kimi K3 (max).

Last updated at: 2026-07-16

Metric Kimi K3 Kimi K3 max Release: 2026-07-16 GPT-5 Mini GPT-5 Mini medium Release: 2025-08-07
Score 8.5 8.5
Rank #21 #22
Reliability 9.4 10.0
Consistency 9.2 9.1
Tests Correct
Attempt pass rate 82.5% 63.5%
Flaky tests 2 2
Total Runs 63 63
Cost per result 19.446 1.319
Total Cost $3.112 $0.159
Input Price $3.000 / 1M $0.250 / 1M
Output Price $15.000 / 1M $2.000 / 1M
Total Input Tokens 34,916 37,100
Output Tokens 2,910 6,801
Reasoning Tokens 197,529 67,690
Response Time (avg) 122.48s 23.64s
Response Time (max) 766.58s 88.15s
Response Time (total) 2327.06s 496.44s

Generation showcase

Hamster playing table tennis

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

#21 MoonshotAI: Kimi K3

max
Cost
$0.281
Time
506.9s
Tokens
18,863 tok

#22 GPT-5 Mini

medium
Cost
$0.007
Time
42.9s
Tokens
3,432 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 K3 10.0 10.0 100.0% 0 325.79s 8,061 460 84,012
GPT-5 Mini 10.0 10.0 100.0% 0 27.63s 7,302 658 17,152

Quick Compare

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