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Claude Opus 5 (medium) vs Gemini 3.5 Flash (high)

Claude Opus 5 (medium) leads on average score with 9.4 vs 8.3. Gemini 3.5 Flash (high) has the lower benchmark cost at $2.737 vs $2.870. Claude Opus 5 (medium) is faster at 13.24s vs 18.59s, with pass rates of 84.1% vs 85.5%.

Last updated at: 2026-10-19

Compared models

Rank
#28
Total Output Tokens
43,450
Response Time (avg)
13.24s
Total Cost
$2.870
Rank
#93
Total Output Tokens
246,012
Response Time (avg)
18.59s
Total Cost
$2.737
Recommended model Claude Opus 5 (medium)

It has the strongest score in this comparison (9.4) and the best overall balance of cost and response time across 2 models.

Detailed comparison

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 9.4 8.3
Rank #28 #93
Reliability 10.0 10.0
Consistency 9.6 9.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 84.1% 85.5%
Flaky tests 1 2
Total Runs 69 69
Cost per result 15.102 14.402
Total Cost $2.870 $2.737
Input Price $5.000 / 1M $1.500 / 1M
Output Price $25.000 / 1M $9.000 / 1M
Cache Read Price $0.500 / 1M $0.150 / 1M
Cache Write Price $6.250 / 1M $0.084 / 1M
Total Input Tokens 356,605 348,103
Output Tokens 26,715 11,045
Reasoning Tokens 17,041 234,967
Response Time (avg) 13.24s 18.59s
Response Time (max) 78.80s 145.92s
Response Time (total) 304.46s 427.52s
Parameters ~5T total (~500B active) ~500B total (~20B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#28 Claude Opus 5

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

#93 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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