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MoonshotAI: Kimi K2.5 vs OpenAI: gpt-oss-120b

Last updated at: 2026-04-11

Metric Kimi K2.5 Kimi K2.5 medium Release: 2026-01-27 gpt-oss-120b gpt-oss-120b none Release: 2025-08-05 Free Available
Score 7.0 5.2
Rank #43 #79
Consistency 6.8 7.9
Tests Correct
Attempt pass rate 72.2% 38.9%
Flaky tests 7 5
Total Runs 54 54
Cost per result 2.444 0.221
Total Cost $0.220 $0.009
Input Price $0.383 / 1M $0.039 / 1M
Output Price $1.720 / 1M $0.190 / 1M
Output Tokens 42,176 44,652
Reasoning Tokens 84,870 0
Response Time (avg) 72.43s 11.96s
Response Time (max) 150.77s 68.97s
Response Time (total) 796.70s 179.34s

Top Models by Score

Score vs Total Cost

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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
gpt-oss-120b 6.6 8.0 58.3% 1 6.03s 4,867 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Kimi K2.5 4.7 1.6 66.7% 1 150.77s 1,269 9,749
gpt-oss-120b 4.3 1.1 66.7% 1 9.57s 3,232 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
gpt-oss-120b 3.0 10.0 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
gpt-oss-120b 6.5 10.0 50.0% 0 7.12s 598 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
gpt-oss-120b 3.0 10.0 0.0% 0 34.98s 29,483 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
gpt-oss-120b 4.6 10.0 0.0% 0 2.83s 586 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
gpt-oss-120b 8.4 6.9 83.3% 1 5.10s 1,982 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
gpt-oss-120b 4.5 4.8 44.5% 2 6.86s 3,904 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
gpt-oss-120b 3.0 10.0 0.0% 0 0ms 0 0

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