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Claude Opus 5 vs Gemini 3.8 Flash (low)

Gemini 3.8 Flash (low) leads on average score with 7.2 vs 7.1. Gemini 3.8 Flash (low) has the lower benchmark cost at $0.323 vs $2.766. Gemini 3.8 Flash (low) is faster at 7.54s vs 10.78s, with pass rates of 55.1% vs 81.2%.

Last updated at: 2026-10-01

Compared models

Rank
#149
Total Output Tokens
31,386
Response Time (avg)
10.78s
Total Cost
$2.766
Rank
#142
Total Output Tokens
42,741
Response Time (avg)
7.54s
Total Cost
$0.323
Recommended model Gemini 3.8 Flash (low)

It has the best score here (7.2), while costing about 8.6x less than Claude Opus 5.

Detailed comparison

Metric Claude Opus 5 Claude Opus 5 none Release: 2026-07-25 Gemini 3.8 Flash Gemini 3.8 Flash low Release: 2026-09-02
Score 7.1 7.2
Rank #149 #142
Reliability 10.0 9.9
Consistency 9.6 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 55.1% 81.2%
Flaky tests 1 5
Total Runs 69 69
Cost per result 23.044 2.014
Total Cost $2.766 $0.323
Input Price $5.000 / 1M $0.750 / 1M
Output Price $25.000 / 1M $3.750 / 1M
Total Input Tokens 396,120 215,836
Output Tokens 31,386 9,452
Reasoning Tokens 0 33,289
Response Time (avg) 10.78s 7.54s
Response Time (max) 79.61s 67.18s
Response Time (total) 247.96s 173.36s
Parameters ~5T total (~500B active) ~500B total (~20B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#149 Claude Opus 5

none
Cost
$0.271
Time
149.3s
Tokens
10,962 tok

#142 Gemini 3.8 Flash

low
Cost
$0.030
Time
45.8s
Tokens
8,023 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 5.9 9.7 33.3% 0 5.54s 10,590 2,886 0
Gemini 3.8 Flash 5.4 7.2 44.4% 1 4.31s 8,118 449 5,706

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