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Anthropic: Claude Sonnet 4.6 vs Google: Gemini 3.1 Pro Preview

Last updated at: 2026-04-29

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 medium Release: 2026-02-17 Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19
Score 8.0 9.6
Rank #36 #2
Reliability N/A N/A
Consistency 9.5 10.0
Tests Correct
Attempt pass rate 74.1% 94.4%
Flaky tests 1 0
Total Runs 54 54
Cost per result 8.930 3.400
Total Cost $1.161 $0.578
Input Price $3.000 / 1M $2.000 / 1M
Output Price $15.000 / 1M $12.000 / 1M
Output Tokens 42,068 1,932
Reasoning Tokens 26,784 40,542
Response Time (avg) 12.66s 15.96s
Response Time (max) 46.35s 40.61s
Response Time (total) 126.62s 175.52s

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Score vs Total Cost

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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
Claude Sonnet 4.6 6.5 10.0 50.0% 0 2.98s 1,046 1,093
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.90s 112 3,218
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 35.76s 6,894 2,097
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 19.88s 405 4,201
Combined 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 46.35s 5,871 3,962
Gemini 3.1 Pro Preview 9.5 10.0 100.0% 0 40.61s 432 9,281
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 13.90s 649 742
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.72s 279 3,904
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 2.9 7.2 11.1% 1 0ms 25,790 16,919
Gemini 3.1 Pro Preview 7.7 10.0 66.7% 0 32.73s 18 12,424
General Intelligence 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 4.94s 256 433
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 11.77s 108 1,179
Instructions following 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 2.61s 318 552
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 9.56s 72 2,236
Puzzle Solving 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 4.80s 589 635
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.15s 232 3,117
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 7.48s 655 351
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 23.15s 274 982

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