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Gemini 3.1 Flash Lite Preview (low) vs Mercury 2.5 (medium)

Mercury 2.5 (medium) leads on average score with 6.4 vs 6.3. Mercury 2.5 (medium) has the lower benchmark cost at $0.034 vs $0.736. Mercury 2.5 (medium) is faster at 7.74s vs 19.04s, with pass rates of 60.9% vs 63.8%.

Last updated at: 2026-10-01

Compared models

Rank
#215
Total Output Tokens
438,891
Response Time (avg)
19.04s
Total Cost
$0.736
Rank
#206
Total Output Tokens
138,946
Response Time (avg)
7.74s
Total Cost
$0.034
Recommended model Mercury 2.5 (medium)

It has the best score here (6.4), while costing about 21.9x less than Gemini 3.1 Flash Lite Preview (low).

Detailed comparison

Metric Gemini 3.1 Flash Lite Preview Gemini 3.1 Flash Lite Preview low Release: 2026-03-03 Mercury 2.5 Mercury 2.5 medium Release: 2026-09-08
Score 6.3 6.4
Rank #215 #206
Reliability 10.0 9.7
Consistency 10.0 8.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 60.9% 63.8%
Flaky tests 0 5
Total Runs 69 69
Cost per result 5.256 0.280
Total Cost $0.736 $0.034
Input Price $0.250 / 1M $0.040 / 1M
Output Price $1.500 / 1M $0.150 / 1M
Total Input Tokens 309,715 317,982
Output Tokens 16,170 3,918
Reasoning Tokens 422,721 135,028
Response Time (avg) 19.04s 7.74s
Response Time (max) 309.35s 107.89s
Response Time (total) 437.98s 178.07s
Parameters ~150B total (~10B active) ~100B
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#215 Gemini 3.1 Flash Lite Preview

low
Cost
$0.002
Time
3.7s
Tokens
1,203 tok

#206 Mercury 2.5

medium
Cost
$0.001
Time
3.8s
Tokens
3,386 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 3.1 Flash Lite Preview 5.5 10.0 33.3% 0 1.39s 8,138 660 1,060
Mercury 2.5 5.0 5.1 44.5% 2 3.70s 7,807 488 21,857

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