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Claude Opus 4.8 vs Kimi K2.6 (medium)

The average score is effectively tied at 7.3 vs 7.2. Claude Opus 4.8 has the lower benchmark cost at $1.166 vs $1.247. Claude Opus 4.8 is faster at 4.92s vs 115.89s, with pass rates of 63.6% vs 63.6%.

Last updated at: 2026-08-29

Rank
#106
Total Output Tokens
16,797
Response Time (avg)
4.92s
Total Cost
$1.166
Rank
#107
Total Output Tokens
347,519
Response Time (avg)
115.89s
Total Cost
$1.247
Recommended model Claude Opus 4.8

It has the best score here (7.3), while responding about 23.6x faster than Kimi K2.6 (medium).

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 none Release: 2026-05-28 Kimi K2.6 Kimi K2.6 medium Release: 2026-04-20
Score 7.3 7.2
Rank #106 #107
Reliability 10.0 10.0
Consistency 9.2 8.3
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 63.6% 63.6%
Flaky tests 2 4
Total Runs 66 66
Cost per result 8.969 10.029
Total Cost $1.166 $1.247
Input Price $5.000 / 1M $0.950 / 1M
Output Price $25.000 / 1M $4.000 / 1M
Total Input Tokens 149,203 68,913
Output Tokens 16,797 64,654
Reasoning Tokens 0 282,865
Response Time (avg) 4.92s 115.89s
Response Time (max) 35.03s 876.20s
Response Time (total) 108.24s 2433.66s
Parameters ~5T total (~500B active) 1T total (32B active)
Availability Closed Weights available

Model generation showcase

Hamster playing table tennis

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

#106 Claude Opus 4.8

none
Cost
$0.053
Time
22.0s
Tokens
2,253 tok

#107 MoonshotAI: Kimi K2.6

medium
Cost
$0.013
Time
103.4s
Tokens
3,620 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
Claude Opus 4.8 5.5 10.0 33.3% 0 3.29s 10,590 1,332 0
Kimi K2.6 5.7 8.6 33.3% 0 214.42s 2,925 9,970 77,189

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