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MoonshotAI: Kimi K2.6 vs OpenAI: GPT-5.6 Terra

Summary

Kimi K2.6 (medium) vs GPT-5.6 Terra (low) benchmark comparison: The average score is effectively tied at 7.8 vs 7.7. GPT-5.6 Terra (low) has the lower benchmark cost at $0.343 vs $0.888. GPT-5.6 Terra (low) is faster at 4.88s vs 71.67s, with pass rates of 65.1% vs 74.6%.

Recommended model: GPT-5.6 Terra (low) - It has the best score here (7.7), while costing about 2.6x less than Kimi K2.6 (medium).

Last updated at: 2026-07-09

Metric Kimi K2.6 Kimi K2.6 medium Release: 2026-04-20 Free Available GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09
Score 7.8 7.7
Rank #43 #47
Reliability 10.0 10.0
Consistency 8.6 8.1
Tests Correct
Attempt pass rate 65.1% 74.6%
Flaky tests 3 5
Total Runs 63 63
Cost per result 8.358 2.637
Total Cost $0.888 $0.343
Input Price $0.660 / 1M $2.500 / 1M
Output Price $3.410 / 1M $15.000 / 1M
Total Input Tokens 29,450 34,226
Output Tokens 102,923 1,943
Reasoning Tokens 254,094 15,201
Response Time (avg) 71.67s 4.88s
Response Time (max) 406.78s 19.85s
Response Time (total) 1433.36s 102.53s

Generation showcase

Hamster playing table tennis

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

#43 MoonshotAI: Kimi K2.6

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

#47 GPT-5.6 Terra

low
Cost
$0.034
Time
16.8s
Tokens
2,348 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
GPT-5.6 Terra 8.3 10.0 75.0% 0 2.36s 606 171 602
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
GPT-5.6 Terra 6.6 4.6 77.8% 2 9.56s 7,302 429 6,821
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
GPT-5.6 Terra 10.0 10.0 100.0% 0 5.07s 11,019 312 349
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
GPT-5.6 Terra 10.0 10.0 100.0% 0 919ms 7,140 222 0
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
GPT-5.6 Terra 5.3 7.2 44.4% 1 8.34s 723 72 4,086
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
GPT-5.6 Terra 4.8 3.2 33.3% 1 3.52s 477 105 249
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
GPT-5.6 Terra 10.0 10.0 100.0% 0 1.48s 660 87 134
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
GPT-5.6 Terra 10.0 10.0 100.0% 0 4.46s 642 259 1,506
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
GPT-5.6 Terra 4.7 1.6 66.7% 1 6.69s 5,462 257 226
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
GPT-5.6 Terra 3.0 10.0 0.0% 0 5.95s 195 29 1,228

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