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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 none Release: 2026-01-27 gpt-oss-120b gpt-oss-120b none Release: 2025-08-05 Free Available
Score 5.5 5.2
Rank #72 #79
Consistency 8.7 7.9
Tests Correct
Attempt pass rate 40.7% 38.9%
Flaky tests 3 5
Total Runs 54 54
Cost per result 0.271 0.221
Total Cost $0.017 $0.009
Input Price $0.383 / 1M $0.039 / 1M
Output Price $1.720 / 1M $0.190 / 1M
Output Tokens 2,659 44,652
Reasoning Tokens 0 0
Response Time (avg) 13.37s 11.96s
Response Time (max) 42.13s 68.97s
Response Time (total) 147.05s 179.34s

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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 K2.5 3.6 8.4 8.3% 1 6.24s 373 0
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 10.0 10.0 100.0% 0 38.78s 649 0
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 2.8 2.1 33.3% 1 19.16s 748 0
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 7.3 5.8 83.3% 1 42.13s 187 0
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 5.3 10.0 33.3% 0 4.38s 29 0
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 10.0 10.0 100.0% 0 4.00s 76 0
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 6.5 10.0 50.0% 0 2.67s 60 0
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 3.1 10.0 0.0% 0 4.73s 317 0
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 13.99s 220 0
gpt-oss-120b 3.0 10.0 0.0% 0 0ms 0 0

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