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Anthropic: Claude Sonnet 4.6 vs Google: Gemini 2.5 Flash

Last updated at: 2026-06-01

Metric Claude Sonnet 4.6 Claude Sonnet 4.6 none Release: 2026-02-17 Gemini 2.5 Flash Gemini 2.5 Flash medium Release: 2025-06-17
Score 7.0 7.7
Rank #78 #40
Reliability 10.0 10.0
Consistency 9.7 9.6
Tests Correct
Attempt pass rate 58.3% 68.3%
Flaky tests 1 1
Total Runs 60 60
Cost per result 2.782 2.750
Total Cost $0.306 $0.358
Input Price $3.000 / 1M $0.300 / 1M
Output Price $15.000 / 1M $2.500 / 1M
Output Tokens 9,450 1,924
Reasoning Tokens 0 137,255
Response Time (avg) 5.27s 15.57s
Response Time (max) 23.84s 95.48s
Response Time (total) 68.50s 311.47s

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Score vs Total Cost

Response Time (avg)

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
Gemini 2.5 Flash 8.4 10.0 75.0% 0 6.30s 255 10,233
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 6.8 10.0 50.0% 0 6.73s 2,112 0
Gemini 2.5 Flash 6.6 10.0 50.0% 0 54.56s 537 24,413
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
Gemini 2.5 Flash 10.0 10.0 100.0% 0 28.44s 303 11,922
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
Gemini 2.5 Flash 10.0 10.0 100.0% 0 4.06s 279 2,325
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
Gemini 2.5 Flash 5.9 7.2 55.6% 1 37.34s 18 80,702
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
Gemini 2.5 Flash 4.8 10.0 0.0% 0 4.86s 92 1,899
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
Gemini 2.5 Flash 9.8 10.0 100.0% 0 2.62s 69 1,203
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 2.53s 533 0
Gemini 2.5 Flash 7.7 10.0 66.7% 0 3.18s 126 2,499
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
Gemini 2.5 Flash 10.0 10.0 100.0% 0 6.20s 234 1,140
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Claude Sonnet 4.6 3.0 10.0 0.0% 0 4.67s 431 0
Gemini 2.5 Flash 3.0 10.0 0.0% 0 2.76s 11 919

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