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Claude Opus 5 vs Google: Gemini 3.5 Flash

Gemini 3.5 Flash (high) leads on average score with 9.5 vs 9.2. Claude Opus 5 (medium) has the lower benchmark cost at $1.486 vs $1.976. Claude Opus 5 (medium) is faster at 9.38s vs 15.07s, with pass rates of 83.3% vs 93.9%.

Recommended modelClaude Opus 5 (medium)Its score stays close to the best score here (9.2 vs 9.5), while responding about 1.6x faster than Gemini 3.5 Flash (high).

Last updated at: 2026-07-25

Metric Claude Opus 5 Claude Opus 5 medium Release: 2026-07-25 Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19
Score 9.2 9.5
Rank #12 #4
Reliability 10.0 10.0
Consistency 9.6 9.3
Tests Correct
Attempt pass rate 83.3% 93.9%
Flaky tests 1 2
Total Runs 66 66
Cost per result 8.253 9.879
Total Cost $1.486 $1.976
Input Price $5.000 / 1M $1.500 / 1M
Output Price $25.000 / 1M $9.000 / 1M
Total Input Tokens 135,607 107,137
Output Tokens 25,673 8,777
Reasoning Tokens 6,930 192,900
Response Time (avg) 9.38s 15.07s
Response Time (max) 35.05s 145.92s
Response Time (total) 206.26s 331.48s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#12 Claude Opus 5

medium
Cost
$0.125
Time
69.3s
Tokens
5,134 tok

#4 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 5 10.0 10.0 100.0% 0 9.56s 10,590 5,224 1,162
Gemini 3.5 Flash 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129

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