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MoonshotAI: Kimi K2.5 vs xAI: Grok Build 0.1

Last updated at: 2026-05-22

Metric Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27 Grok Build 0.1 Grok Build 0.1 none Release: 2026-05-21
Score 6.7 6.6
Rank #79 #82
Reliability 10.0 10.0
Consistency 6.8 8.0
Tests Correct
Attempt pass rate 66.7% 60.4%
Flaky tests 8 4
Total Runs 60 57
Cost per result 3.479 7.805
Total Cost $0.314 $0.547
Input Price $0.400 / 1M $1.000 / 1M
Output Price $1.900 / 1M $2.000 / 1M
Output Tokens 46,619 267,275
Reasoning Tokens 128,184 0
Response Time (avg) 89.36s 28.69s
Response Time (max) 281.00s 138.35s
Response Time (total) 1161.65s 459.00s

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 7.3 5.8 83.3% 2 51.38s 2,789 8,880
Grok Build 0.1 8.7 7.9 91.7% 1 6.30s 11,162 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 4.1 1.9 50.0% 2 215.89s 5,700 45,419
Grok Build 0.1 10.0 10.0 100.0% 0 21.41s 16,568 0
Combined 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 71.37s 703 3,713
Grok Build 0.1 0.0 0.0 0.0% 0 0ms 0 0
Data parsing and extraction 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 49.78s 563 7,940
Grok Build 0.1 4.7 1.6 66.7% 1 9.33s 6,359 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 3.5 4.4 33.3% 2 137.29s 20,753 30,564
Grok Build 0.1 3.6 7.2 22.2% 1 103.71s 179,469 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 6.5 3.4 66.7% 1 69.73s 3,815 4,262
Grok Build 0.1 4.3 10.0 0.0% 0 12.47s 6,647 0
Instructions following 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 92.47s 5,371 6,547
Grok Build 0.1 9.8 10.0 100.0% 0 7.36s 8,970 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 5.3 7.3 44.4% 1 45.40s 6,671 12,403
Grok Build 0.1 6.4 7.7 55.6% 1 9.55s 14,982 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 31.74s 242 812
Grok Build 0.1 0.0 0.0 0.0% 0 0ms 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 3.0 10.0 0.0% 0 83.95s 12 7,644
Grok Build 0.1 3.0 10.0 0.0% 0 36.09s 23,118 0

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