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Claude Opus 5 (medium) vs Gemini 3.8 Flash (high)

Gemini 3.8 Flash (high) leads on average score with 9.9 vs 9.2. Claude Opus 5 (medium) has the lower benchmark cost at $1.586 vs $1.595. Claude Opus 5 (medium) is faster at 10.26s vs 37.19s, with pass rates of 83.3% vs 98.5%.

Last updated at: 2026-09-02

Rank
#16
Total Output Tokens
36,618
Response Time (avg)
10.26s
Total Cost
$1.586
Rank
#2
Total Output Tokens
408,188
Response Time (avg)
37.19s
Total Cost
$1.595
Recommended model Claude Opus 5 (medium)

Its score stays close to the best score here (9.2 vs 9.9), while responding about 3.6x faster than Gemini 3.8 Flash (high).

Detailed comparison

Metric Claude Opus 5 Claude Opus 5 medium Release: 2026-07-25 Gemini 3.8 Flash Gemini 3.8 Flash high Release: 2026-09-02
Score 9.2 9.9
Rank #16 #2
Reliability 10.0 10.0
Consistency 9.6 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 83.3% 98.5%
Flaky tests 1 1
Total Runs 66 66
Cost per result 8.811 7.592
Total Cost $1.586 $1.595
Input Price $5.000 / 1M $0.750 / 1M
Output Price $25.000 / 1M $3.750 / 1M
Total Input Tokens 135,604 84,593
Output Tokens 23,814 10,517
Reasoning Tokens 12,804 397,671
Response Time (avg) 10.26s 37.19s
Response Time (max) 35.43s 177.08s
Response Time (total) 225.66s 818.19s
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.

#16 Claude Opus 5

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

#2 Gemini 3.8 Flash

high
Cost
$0.077
Time
129.1s
Tokens
20,373 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 3.8 Flash 10.0 10.0 100.0% 0 29.30s 8,118 462 50,196

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