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OpenAI: gpt-oss-120b vs xAI: Grok 4.20 Multi-Agent Beta

Last updated at: 2026-03-12

Metric gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available Grok 4.20 Multi-Agent Beta Grok 4.20 Multi-Agent Beta medium Release: 2026-03-12
Rank #43 #47
Avg Score 5.1 4.9
Consistency 7.4 7.1
Cost per result 0.135 97.178
Total Cost $0.010 $4.859
Tests Correct
Attempt pass rate 54.2% 52.1%
Flaky tests 5 6
Total Runs 48 48
Output Tokens 13,210 293,634
Reasoning Tokens 34,230 291,260
Response Time (avg) 16.65s 9.08s
Response Time (max) 50.92s 35.28s
Response Time (total) 149.88s 127.09s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Avg Score vs Response Time (avg)

Total Output Tokens

Avg 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
gpt-oss-120b 7.0 9.8 66.7% 0 19.76s 3,463 2,077
Grok 4.20 Multi-Agent Beta 4.0 4.4 66.7% 2 3.77s 28,392 27,808
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 10.0 10.0 100.0% 0 31.18s 694 5,072
Grok 4.20 Multi-Agent Beta 10.0 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
gpt-oss-120b 5.5 5.9 66.7% 1 1.98s 241 1,114
Grok 4.20 Multi-Agent Beta 9.9 10.0 100.0% 0 5.54s 25,306 25,051
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 10.0 4.4 22.2% 2 50.92s 6,784 20,606
Grok 4.20 Multi-Agent Beta 10.0 7.2 11.1% 1 24.67s 164,609 163,647
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 3.0 10.0 0.0% 0 7.90s 107 387
Grok 4.20 Multi-Agent Beta 4.0 2.8 66.7% 1 6.40s 15,848 15,746
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 9.5 10.0 100.0% 0 7.63s 126 1,799
Grok 4.20 Multi-Agent Beta 9.0 10.0 50.0% 0 4.63s 25,457 25,322
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 1.7 4.7 22.2% 2 11.80s 1,508 2,092
Grok 4.20 Multi-Agent Beta 6.3 5.1 77.8% 2 5.01s 34,022 33,686
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 9.0 10.0 100.0% 0 6.91s 287 1,083
Grok 4.20 Multi-Agent Beta 10.0 10.0 0.0% 0 0ms 0 0

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