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Grok 4.20 Beta vs xAI: Grok 4.20

Last updated at: 2026-04-02

Metric Grok 4.20 Beta Grok 4.20 Beta none Release: 2026-03-12 Grok 4.20 Grok 4.20 none Release: 2026-03-31
Score 5.3 5.4
Rank #70 #69
Consistency 9.1 9.5
Tests Correct
Attempt pass rate 31.4% 31.4%
Flaky tests 2 1
Total Runs 51 51
Cost per result 2.240 1.809
Total Cost $0.090 $0.091
Input Price $0.000 / 1M $2.000 / 1M
Output Price $0.000 / 1M $6.000 / 1M
Output Tokens 1,517 1,655
Reasoning Tokens 0 0
Response Time (avg) 1.19s 1.11s
Response Time (max) 6.48s 6.04s
Response Time (total) 20.22s 18.80s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 4.0 8.4 16.7% 1 597ms 251 0
Grok 4.20 4.8 10.0 25.0% 0 501ms 267 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 3.0 10.0 0.0% 0 6.48s 282 0
Grok 4.20 3.0 10.0 0.0% 0 6.04s 282 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 10.0 10.0 100.0% 0 601ms 197 0
Grok 4.20 10.0 10.0 100.0% 0 522ms 207 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 3.0 10.0 0.0% 0 611ms 160 0
Grok 4.20 3.0 10.0 0.0% 0 687ms 325 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 5.0 10.0 0.0% 0 541ms 87 0
Grok 4.20 4.8 10.0 0.0% 0 659ms 83 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 4.8 10.0 0.0% 0 687ms 60 0
Grok 4.20 4.8 10.0 0.0% 0 455ms 60 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 5.9 7.2 55.6% 1 541ms 291 0
Grok 4.20 5.3 7.4 44.4% 1 487ms 242 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.20 Beta 10.0 10.0 100.0% 0 4.79s 189 0
Grok 4.20 10.0 10.0 100.0% 0 4.63s 189 0

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