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Gemini 3.8 Flash (high) vs GPT-5.5 (low)

Gemini 3.8 Flash (high) leads on average score with 9.9 vs 9.3. GPT-5.5 (low) has the lower benchmark cost at $1.257 vs $1.595. GPT-5.5 (low) is faster at 10.15s vs 37.19s, with pass rates of 98.5% vs 86.4%.

Last updated at: 2026-09-02

Rank
#2
Total Output Tokens
408,188
Response Time (avg)
37.19s
Total Cost
$1.595
Rank
#11
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 9.9), while responding about 3.7x faster than Gemini 3.8 Flash (high).

Detailed comparison

Metric Gemini 3.8 Flash Gemini 3.8 Flash high Release: 2026-09-02 GPT-5.5 GPT-5.5 low Release: 2026-04-24
Score 9.9 9.3
Rank #2 #11
Reliability 10.0 10.0
Consistency 9.6 10.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 98.5% 86.4%
Flaky tests 1 0
Total Runs 66 66
Cost per result 7.592 6.614
Total Cost $1.595 $1.257
Input Price $0.750 / 1M $5.000 / 1M
Output Price $3.750 / 1M $30.000 / 1M
Total Input Tokens 84,593 80,067
Output Tokens 10,517 5,378
Reasoning Tokens 397,671 23,162
Response Time (avg) 37.19s 10.15s
Response Time (max) 177.08s 56.19s
Response Time (total) 818.19s 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.

#2 Gemini 3.8 Flash

high
Cost
$0.077
Time
129.1s
Tokens
20,373 tok

#11 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 3.8 Flash 10.0 10.0 100.0% 0 29.30s 8,118 462 50,196
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402

Quick Compare

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