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MoonshotAI: Kimi K2.6 vs xAI: Grok 4.5

Summary

Kimi K2.6 (medium) vs Grok 4.5 (low) benchmark comparison: Grok 4.5 (low) leads on average score with 7.8 vs 7.8. Grok 4.5 (low) has the lower benchmark cost at $0.760 vs $0.888. Grok 4.5 (low) is faster at 15.48s vs 71.67s, with pass rates of 65.1% vs 74.6%.

Recommended model: Grok 4.5 (low) - It has the best score here (7.8), while responding about 4.6x faster than Kimi K2.6 (medium).

Last updated at: 2026-07-08

Metric Kimi K2.6 Kimi K2.6 medium Release: 2026-04-20 Free Available Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 7.8 7.8
Rank #38 #34
Reliability 10.0 10.0
Consistency 8.6 9.7
Tests Correct
Attempt pass rate 65.1% 74.6%
Flaky tests 3 1
Total Runs 63 63
Cost per result 8.358 5.061
Total Cost $0.888 $0.760
Input Price $0.650 / 1M $2.000 / 1M
Output Price $3.410 / 1M $6.000 / 1M
Total Input Tokens 29,450 58,652
Output Tokens 102,923 1,735
Reasoning Tokens 254,094 105,233
Response Time (avg) 71.67s 15.48s
Response Time (max) 406.78s 205.28s
Response Time (total) 1433.36s 324.98s

Generation showcase

Hamster playing table tennis

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

#38 MoonshotAI: Kimi K2.6

medium
Cost
$0.013
Time
103.4s
Tokens
3,620 tok

#34 xAI: Grok 4.5

low
Cost
$0.011
Time
12.4s
Tokens
2,018 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 7.0 8.0 66.7% 1 11.59s 618 7,115 8,934
Grok 4.5 10.0 10.0 100.0% 0 2.75s 2,991 261 3,000
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 5.7 8.6 33.3% 0 214.42s 2,925 9,970 77,189
Grok 4.5 10.0 10.0 100.0% 0 13.72s 9,579 303 15,641
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 40.96s 11,271 711 13,876
Grok 4.5 3.0 10.0 0.0% 0 8.16s 15,084 261 2,370
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 20.38s 7,014 316 11,305
Grok 4.5 10.0 10.0 100.0% 0 3.44s 8,937 225 2,549
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 5.3 7.2 44.4% 1 202.38s 326 47,035 98,262
Grok 4.5 3.0 10.0 0.0% 0 72.64s 2,514 14 70,275
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 17.83s 477 3,981 4,472
Grok 4.5 6.1 3.1 66.7% 1 4.88s 1,077 98 1,253
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 12.53s 669 3,977 5,269
Grok 4.5 9.8 10.0 100.0% 0 2.80s 1,857 57 1,878
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 6.0 7.4 55.6% 1 25.06s 651 13,860 17,599
Grok 4.5 10.0 10.0 100.0% 0 3.20s 2,430 217 2,590
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 8.92s 5,286 248 1,011
Grok 4.5 10.0 10.0 100.0% 0 5.83s 13,394 284 871
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Kimi K2.6 3.0 10.0 0.0% 0 130.27s 213 15,710 16,177
Grok 4.5 3.0 10.0 0.0% 0 13.98s 789 15 4,806

Quick Compare

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