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DeepSeek: DeepSeek V4 Pro vs xAI: Grok 4.20

Last updated at: 2026-04-24

Metric DeepSeek V4 Pro DeepSeek V4 Pro high Release: 2026-04-24 Grok 4.20 Grok 4.20 medium Release: 2026-03-31
Score 7.4 7.0
Rank #50 #54
Consistency 10.0 7.8
Tests Correct
Attempt pass rate 61.1% 66.7%
Flaky tests 0 5
Total Runs 24 54
Cost per result 1.385 8.252
Total Cost $0.153 $0.743
Input Price $1.740 / 1M $2.000 / 1M
Output Price $3.480 / 1M $6.000 / 1M
Output Tokens 584 1,744
Reasoning Tokens 37,708 109,882
Response Time (avg) 78.45s 10.33s
Response Time (max) 351.99s 29.87s
Response Time (total) 1255.22s 185.87s

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Score vs Total Cost

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Score vs Response Time (avg)

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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
DeepSeek V4 Pro 8.3 10.0 75.0% 0 32.12s 64 1,799
Grok 4.20 8.2 7.9 83.3% 1 3.36s 280 8,476
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 93.00s 82 2,808
Grok 4.20 4.3 1.1 66.7% 1 24.33s 250 12,804
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 71.08s 134 2,163
Grok 4.20 10.0 10.0 100.0% 0 17.40s 232 9,556
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 63.00s 67 1,071
Grok 4.20 10.0 10.0 100.0% 0 4.17s 180 5,333
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.3 10.0 33.3% 0 202.56s 11 25,343
Grok 4.20 5.3 10.0 33.3% 0 27.03s 375 49,339
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 5.0 10.0 0.0% 0 26.96s 51 734
Grok 4.20 5.8 2.8 66.7% 1 7.09s 47 4,252
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 3.0 10.0 0.0% 0 0ms 0 0
Grok 4.20 7.3 5.9 83.3% 1 4.42s 40 5,474
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 7.7 10.0 66.7% 0 63.66s 91 3,617
Grok 4.20 6.4 7.7 55.6% 1 3.89s 143 8,028
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
DeepSeek V4 Pro 10.0 10.0 100.0% 0 11.05s 84 173
Grok 4.20 3.0 10.0 0.0% 0 13.68s 197 6,620

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