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Kimi K2.5 (medium) vs GPT-5.6 Sol

GPT-5.6 Sol leads on average score with 7.0 vs 7.0. GPT-5.6 Sol has the lower benchmark cost at $0.201 vs $0.639. GPT-5.6 Sol is faster at 2.17s vs 98.19s, with pass rates of 63.6% vs 63.6%.

Last updated at: 2026-08-29

Rank
#125
Total Output Tokens
220,942
Response Time (avg)
98.19s
Total Cost
$0.639
Rank
#118
Total Output Tokens
4,357
Response Time (avg)
2.17s
Total Cost
$0.201
Recommended model GPT-5.6 Sol

It has the best score here (7.0), while costing about 3.2x less than Kimi K2.5 (medium).

Detailed comparison

Metric Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27 GPT-5.6 Sol GPT-5.6 Sol none Release: 2026-07-09
Score 7.0 7.0
Rank #125 #118
Reliability 10.0 10.0
Consistency 7.0 9.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 63.6% 63.6%
Flaky tests 8 3
Total Runs 66 66
Cost per result 4.849 4.365
Total Cost $0.639 $0.201
Input Price $0.600 / 1M $2.000 / 1M
Output Price $3.000 / 1M $10.000 / 1M
Total Input Tokens 118,496 78,602
Output Tokens 53,522 4,357
Reasoning Tokens 167,420 0
Response Time (avg) 98.19s 2.17s
Response Time (max) 281.00s 12.81s
Response Time (total) 1571.05s 47.66s
Parameters 1T total (32B active) ~2T total (~150B active)
Availability Weights available Closed

Model generation showcase

Hamster playing table tennis

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

#125 MoonshotAI: Kimi K2.5

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

#118 GPT-5.6 Sol

none
Cost
$0.116
Time
78.7s
Tokens
3,944 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-5.6 Sol 5.5 10.0 33.3% 0 1.39s 7,302 390 0

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