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MoonshotAI: Kimi K2.6 vs OpenAI: GPT-5.4 Nano

Last updated at: 2026-04-30

Metric Kimi K2.6 Kimi K2.6 medium Release: 2026-04-20 GPT-5.4 Nano GPT-5.4 Nano medium Release: 2026-03-17
Score 7.7 7.6
Rank #47 #50
Reliability N/A N/A
Consistency 8.3 9.0
Tests Correct
Attempt pass rate 74.1% 68.5%
Flaky tests 4 2
Total Runs 54 54
Cost per result 6.563 0.747
Total Cost $0.722 $0.083
Input Price $0.740 / 1M $0.200 / 1M
Output Price $3.490 / 1M $1.250 / 1M
Output Tokens 80,759 2,946
Reasoning Tokens 179,814 58,132
Response Time (avg) 45.20s 11.21s
Response Time (max) 215.85s 94.06s
Response Time (total) 768.37s 201.80s

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 K2.6 7.0 8.0 66.7% 1 11.59s 7,115 8,934
GPT-5.4 Nano 8.3 10.0 75.0% 0 4.52s 683 2,254
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 106.96s 3,236 18,817
GPT-5.4 Nano 10.0 10.0 100.0% 0 13.41s 472 3,616
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 40.96s 711 13,876
GPT-5.4 Nano 9.8 10.0 100.0% 0 24.13s 349 5,719
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 20.38s 316 11,305
GPT-5.4 Nano 10.0 10.0 100.0% 0 2.54s 234 516
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 5.3 7.2 44.4% 1 202.38s 47,035 98,262
GPT-5.4 Nano 5.9 7.2 55.6% 1 38.18s 60 43,325
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 17.83s 3,981 4,472
GPT-5.4 Nano 4.5 10.0 0.0% 0 4.15s 179 443
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 12.53s 3,977 5,269
GPT-5.4 Nano 9.8 10.0 100.0% 0 1.88s 95 521
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 5.0 5.2 44.5% 2 25.59s 14,140 17,868
GPT-5.4 Nano 4.0 7.1 22.2% 1 3.65s 640 1,356
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.6 10.0 10.0 100.0% 0 8.92s 248 1,011
GPT-5.4 Nano 10.0 10.0 100.0% 0 7.71s 234 382

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