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Inception: Mercury 2 vs MoonshotAI: Kimi K2.5

Last updated at: 2026-06-03

Metric Mercury 2 Mercury 2 medium Release: 2026-02-24 Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27
Score 6.5 6.7
Rank #89 #81
Reliability 10.0 10.0
Consistency 8.8 6.8
Tests Correct
Attempt pass rate 51.7% 66.7%
Flaky tests 3 8
Total Runs 60 60
Cost per result 0.611 3.486
Total Cost $0.055 $0.272
Input Price $0.250 / 1M $0.400 / 1M
Output Price $0.750 / 1M $1.900 / 1M
Total Input Tokens 32,570 31,717
Output Tokens 4,022 48,374
Reasoning Tokens 58,405 128,473
Response Time (avg) 2.27s 89.02s
Response Time (max) 14.63s 281.00s
Response Time (total) 43.20s 1157.32s

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
Mercury 2 6.9 9.9 50.0% 0 1.12s 554 2,546 2,609
Kimi K2.5 7.3 5.8 83.3% 2 51.38s 634 2,789 8,880
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 7.2 6.5 66.7% 1 2.29s 4,519 270 8,514
Kimi K2.5 4.1 1.9 50.0% 2 215.89s 4,340 5,700 45,419
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 10.0 10.0 100.0% 0 3.28s 12,909 268 4,887
Kimi K2.5 10.0 10.0 100.0% 0 71.37s 11,280 703 3,713
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 7.3 5.9 83.3% 1 1.11s 6,234 183 1,656
Kimi K2.5 10.0 10.0 100.0% 0 49.78s 7,020 563 7,940
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 2.9 7.2 11.1% 1 6.48s 695 41 30,754
Kimi K2.5 3.5 4.4 33.3% 2 137.29s 485 20,753 30,564
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 4.8 10.0 0.0% 0 821ms 456 137 542
Kimi K2.5 6.5 3.4 66.7% 1 69.73s 480 3,815 4,262
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 10.0 10.0 100.0% 0 1.07s 340 14 958
Kimi K2.5 10.0 10.0 100.0% 0 92.47s 675 5,371 6,547
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 5.4 10.0 33.3% 0 949ms 601 361 2,781
Kimi K2.5 5.3 7.3 44.4% 1 43.23s 659 8,426 12,692
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 10.0 10.0 100.0% 0 1.89s 6,080 180 1,956
Kimi K2.5 10.0 10.0 100.0% 0 31.74s 5,933 242 812
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Mercury 2 3.0 10.0 0.0% 0 2.58s 182 22 3,748
Kimi K2.5 3.0 10.0 0.0% 0 83.95s 211 12 7,644

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