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Gemini 3.8 Flash (high) vs Gemini 3 Flash Preview (medium)

Gemini 3.8 Flash (high) leads on average score with 9.9 vs 9.5. Gemini 3 Flash Preview (medium) has the lower benchmark cost at $0.763 vs $1.595. Gemini 3 Flash Preview (medium) is faster at 19.86s vs 37.19s, with pass rates of 98.5% vs 93.9%.

Last updated at: 2026-09-02

Rank
#2
Total Output Tokens
408,188
Response Time (avg)
37.19s
Total Cost
$1.595
Rank
#6
Total Output Tokens
239,608
Response Time (avg)
19.86s
Total Cost
$0.763
Recommended model Gemini 3 Flash Preview (medium)

Its score stays close to the best score here (9.5 vs 9.9), while costing about 2.1x less than Gemini 3.8 Flash (high).

Detailed comparison

Metric Gemini 3.8 Flash Gemini 3.8 Flash high Release: 2026-09-02 Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17
Score 9.9 9.5
Rank #2 #6
Reliability 10.0 10.0
Consistency 9.6 9.7
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 98.5% 93.9%
Flaky tests 1 1
Total Runs 66 66
Cost per result 7.592 3.814
Total Cost $1.595 $0.763
Input Price $0.750 / 1M $0.500 / 1M
Output Price $3.750 / 1M $3.000 / 1M
Total Input Tokens 84,593 87,870
Output Tokens 10,517 5,486
Reasoning Tokens 397,671 234,122
Response Time (avg) 37.19s 19.86s
Response Time (max) 177.08s 117.26s
Response Time (total) 818.19s 436.88s
Parameters ~500B total (~20B 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.

#2 Gemini 3.8 Flash

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

#6 Gemini 3 Flash Preview

medium
Cost
$0.010
Time
18.4s
Tokens
3,351 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
Gemini 3 Flash Preview 8.6 7.6 88.9% 1 84.40s 8,122 462 161,084

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