Navigate
AI BENCHY
Advertise here

MoonshotAI: Kimi K2.5 vs OpenAI: GPT-5.5

Kimi K2.5 (medium) leads on average score with 7.0 vs 6.9. GPT-5.5 has the lower benchmark cost at $0.544 vs $0.600. GPT-5.5 is faster at 2.36s vs 99.00s, with pass rates of 65.2% vs 56.1%.

Recommended modelGPT-5.5Its score stays close to the best score here (6.9 vs 7.0), while responding about 42.0x faster than Kimi K2.5 (medium).

Last updated at: 2026-07-24

Metric Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27 GPT-5.5 GPT-5.5 none Release: 2026-04-24
Score 7.0 6.9
Rank #81 #91
Reliability 10.0 10.0
Consistency 7.0 8.9
Tests Correct
Attempt pass rate 65.2% 56.1%
Flaky tests 8 3
Total Runs 66 66
Cost per result 4.789 4.945
Total Cost $0.600 $0.544
Input Price $0.571 / 1M $5.000 / 1M
Output Price $2.850 / 1M $30.000 / 1M
Total Input Tokens 118,448 79,285
Output Tokens 62,124 4,915
Reasoning Tokens 165,243 0
Response Time (avg) 99.00s 2.36s
Response Time (max) 281.00s 12.24s
Response Time (total) 1485.04s 51.88s

Hamster playing table tennis

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

#81 MoonshotAI: Kimi K2.5

medium
Cost
$0.030
Time
58.6s
Tokens
8,683 tok

#91 GPT-5.5

none
Cost
$0.090
Time
54.3s
Tokens
3,063 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 K2.5 6.1 4.6 66.7% 2 217.49s 6,935 5,705 74,693
GPT-5.5 5.5 10.0 33.3% 0 1.35s 7,305 462 0

Quick Compare

Switch Comparison Pair