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MoonshotAI: Kimi K2.5 vs MoonshotAI: Kimi K2.6

Last updated at: 2026-04-29

Metric Kimi K2.5 Kimi K2.5 none Release: 2026-01-27 Kimi K2.6 Kimi K2.6 none Release: 2026-04-20
Score 5.5 5.8
Rank #99 #89
Reliability N/A N/A
Consistency 8.7 9.1
Tests Correct
Attempt pass rate 40.7% 42.6%
Flaky tests 3 2
Total Runs 54 54
Cost per result 0.271 0.543
Total Cost $0.017 $0.038
Input Price $0.440 / 1M $0.745 / 1M
Output Price $2.000 / 1M $4.655 / 1M
Output Tokens 2,659 2,973
Reasoning Tokens 0 0
Response Time (avg) 13.37s 2.05s
Response Time (max) 42.13s 6.65s
Response Time (total) 147.05s 36.93s

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) Output Tokens Reasoning Tokens
Kimi K2.5 3.6 8.4 8.3% 1 6.24s 373 0
Kimi K2.6 4.6 10.0 25.0% 0 1.39s 471 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 38.78s 649 0
Kimi K2.6 10.0 10.0 100.0% 0 6.65s 1,176 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 2.8 2.1 33.3% 1 19.16s 748 0
Kimi K2.6 3.0 10.0 0.0% 0 3.38s 290 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 7.3 5.8 83.3% 1 42.13s 187 0
Kimi K2.6 10.0 10.0 100.0% 0 1.32s 201 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 5.3 10.0 33.3% 0 4.38s 29 0
Kimi K2.6 5.3 7.2 44.4% 1 1.48s 42 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 4.00s 76 0
Kimi K2.6 5.4 3.5 33.3% 1 1.55s 138 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 6.5 10.0 50.0% 0 2.67s 60 0
Kimi K2.6 6.5 10.0 50.0% 0 1.64s 72 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 3.1 10.0 0.0% 0 4.73s 317 0
Kimi K2.6 3.4 9.7 0.0% 0 1.66s 343 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 10.0 10.0 100.0% 0 13.99s 220 0
Kimi K2.6 10.0 10.0 100.0% 0 4.46s 240 0

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