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Gemini 3.5 Flash (medium) vs GPT-5.5 (low)

GPT-5.5 (low) leads on average score with 9.3 vs 9.0. Gemini 3.5 Flash (medium) has the lower benchmark cost at $0.665 vs $1.257. Gemini 3.5 Flash (medium) is faster at 8.48s vs 10.15s, with pass rates of 83.3% vs 86.4%.

Last updated at: 2026-08-15

Rank
#18
Total Output Tokens
62,173
Response Time (avg)
8.48s
Total Cost
$0.665
Rank
#10
Total Output Tokens
28,540
Response Time (avg)
10.15s
Total Cost
$1.257
Recommended model Gemini 3.5 Flash (medium)

Its score stays close to the best score here (9.0 vs 9.3), while costing about 1.9x less than GPT-5.5 (low).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 9.0 9.3
Rank #18 #10
Reliability 10.0 10.0
Consistency 9.7 10.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 83.3% 86.4%
Flaky tests 1 0
Total Runs 66 66
Cost per result 3.690 6.614
Total Cost $0.665 $1.257
Input Price $1.500 / 1M $5.000 / 1M
Output Price $9.000 / 1M $30.000 / 1M
Total Input Tokens 69,756 80,067
Output Tokens 2,166 5,378
Reasoning Tokens 60,007 23,162
Response Time (avg) 8.48s 10.15s
Response Time (max) 76.68s 56.19s
Response Time (total) 186.57s 223.24s
Parameters ~500B total (~20B active) ~1.5T total (~100B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#18 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 tok

#10 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 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
Gemini 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

Quick Compare

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