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

Gemini 3.5 Flash (high) leads on average score with 9.4 vs 9.3. GPT-5.5 (low) has the lower benchmark cost at $1.257 vs $2.011. GPT-5.5 (low) is faster at 10.15s vs 15.46s, with pass rates of 89.4% vs 86.4%.

Last updated at: 2026-08-15

Rank
#6
Total Output Tokens
205,482
Response Time (avg)
15.46s
Total Cost
$2.011
Rank
#10
Total Output Tokens
28,540
Response Time (avg)
10.15s
Total Cost
$1.257
Recommended model GPT-5.5 (low)

Its score stays close to the best score here (9.3 vs 9.4), while costing about 1.6x less than Gemini 3.5 Flash (high).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash high Release: 2026-05-19 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 9.4 9.3
Rank #6 #10
Reliability 10.0 10.0
Consistency 9.3 10.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 89.4% 86.4%
Flaky tests 2 0
Total Runs 66 66
Cost per result 10.580 6.614
Total Cost $2.011 $1.257
Input Price $1.500 / 1M $5.000 / 1M
Output Price $9.000 / 1M $30.000 / 1M
Total Input Tokens 107,146 80,067
Output Tokens 8,777 5,378
Reasoning Tokens 196,705 23,162
Response Time (avg) 15.46s 10.15s
Response Time (max) 145.92s 56.19s
Response Time (total) 340.20s 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.

#6 Gemini 3.5 Flash

high
Cost
$0.208
Time
118.2s
Tokens
23,158 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 10.0 10.0 100.0% 0 22.96s 8,118 456 47,129
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

Quick Compare

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