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Anthropic: Claude Sonnet 4.6 vs xAI: Grok 4.3

Last updated at: 2026-05-01

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 none Release: 2026-02-17 Grok 4.3 Grok 4.3 medium Release: 2026-05-01
Score 7.4 8.2
Rank #56 #20
Reliability N/A 10.0
Consistency 9.6 8.6
Tests Correct
Attempt pass rate 64.8% 81.5%
Flaky tests 1 3
Total Runs 54 54
Cost per result 2.376 3.974
Total Cost $0.262 $0.517
Input Price $3.000 / 1M $1.250 / 1M
Output Price $15.000 / 1M $2.500 / 1M
Output Tokens 7,433 1,223
Reasoning Tokens 0 187,047
Response Time (avg) 4.98s 48.63s
Response Time (max) 23.84s 216.69s
Response Time (total) 54.83s 875.27s

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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
Claude Sonnet 4.6 4.8 10.0 25.0% 0 2.94s 1,214 0
Grok 4.3 10.0 10.0 100.0% 0 8.83s 88 8,207
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 3.67s 523 0
Grok 4.3 10.0 10.0 100.0% 0 45.72s 284 9,659
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 9.5 10.0 100.0% 0 23.84s 3,766 0
Grok 4.3 10.0 10.0 100.0% 0 63.99s 234 15,301
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 3.43s 252 0
Grok 4.3 10.0 10.0 100.0% 0 18.97s 180 9,546
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 7.7 10.0 66.7% 0 3.54s 413 0
Grok 4.3 5.3 7.2 44.4% 1 181.74s 14 111,300
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.1 3.1 66.7% 1 2.56s 192 0
Grok 4.3 5.4 2.5 66.7% 1 24.70s 70 5,020
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.5 10.0 50.0% 0 1.96s 90 0
Grok 4.3 9.8 10.0 100.0% 0 18.58s 57 8,713
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 7.7 10.0 66.7% 0 2.92s 536 0
Grok 4.3 5.9 7.2 55.6% 1 22.53s 128 14,686
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 10.0 10.0 100.0% 0 4.11s 447 0
Grok 4.3 10.0 10.0 100.0% 0 17.66s 168 4,615

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