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Gemini 2.5 Flash vs Gemini 3.1 Flash Lite

The average score is effectively tied at 6.2 vs 6.1. Gemini 2.5 Flash has the lower benchmark cost at $0.017 vs $0.046. Gemini 3.1 Flash Lite is faster at 1.75s vs 6.20s, with pass rates of 43.9% vs 50.0%.

Last updated at: 2026-08-05

Rank
#142
Total Output Tokens
1,890
Response Time (avg)
6.20s
Total Cost
$0.017
Rank
#147
Total Output Tokens
10,723
Response Time (avg)
1.75s
Total Cost
$0.046
Recommended model Gemini 3.1 Flash Lite

It has the best score here (6.1), while responding about 3.5x faster than Gemini 2.5 Flash.

Detailed comparison

Metric Gemini 2.5 Flash Gemini 2.5 Flash none Release: 2025-06-17 Gemini 3.1 Flash Lite Gemini 3.1 Flash Lite none Release: 2026-05-08
Score 6.2 6.1
Rank #142 #147
Reliability 10.0 10.0
Consistency 9.6 8.6
Benchmark coverage 22/22 tests · 66/66 attempts 22/22 tests · 66/66 attempts
Tests Correct
Attempt pass rate 43.9% 50.0%
Flaky tests 1 4
Total Runs 66 66
Cost per result 0.186 0.507
Total Cost $0.017 $0.046
Input Price $0.300 / 1M $0.250 / 1M
Output Price $2.500 / 1M $1.500 / 1M
Total Input Tokens 39,877 118,050
Output Tokens 1,890 10,723
Reasoning Tokens 0 0
Response Time (avg) 6.20s 1.75s
Response Time (max) 118.00s 16.25s
Response Time (total) 136.37s 38.60s

Model generation showcase

Hamster playing table tennis

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

#142 Gemini 2.5 Flash

none
Invalid SVG
Cost
$0.164
Time
215.5s
Tokens
65,659 tok

#147 Gemini 3.1 Flash Lite

none
Cost
$0.001
Time
4.5s
Tokens
727 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 2.5 Flash 5.5 10.0 33.3% 0 736ms 8,122 483 0
Gemini 3.1 Flash Lite 5.5 10.0 33.3% 0 938ms 8,128 666 0

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