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Google: Gemini 3.1 Pro Preview vs Inception: Mercury 2

Last updated at: 2026-04-16

Metric Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19 Mercury 2 Mercury 2 none Release: 2026-02-24
Score 9.6 4.8
Rank #2 #89
Consistency 10.0 9.0
Tests Correct
Attempt pass rate 94.4% 27.8%
Flaky tests 0 2
Total Runs 54 54
Cost per result 3.400 0.165
Total Cost $0.578 $0.007
Input Price $2.000 / 1M $0.250 / 1M
Output Price $12.000 / 1M $0.750 / 1M
Output Tokens 1,932 1,625
Reasoning Tokens 40,542 0
Response Time (avg) 15.96s 613ms
Response Time (max) 40.61s 1.27s
Response Time (total) 175.52s 11.04s

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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.90s 112 3,218
Mercury 2 3.0 10.0 0.0% 0 483ms 286 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 19.88s 405 4,201
Mercury 2 3.6 8.9 0.0% 0 969ms 310 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 9.5 10.0 100.0% 0 40.61s 432 9,281
Mercury 2 3.0 10.0 0.0% 0 606ms 131 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.72s 279 3,904
Mercury 2 7.3 5.9 83.3% 1 667ms 180 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 7.7 10.0 66.7% 0 32.73s 18 12,424
Mercury 2 5.3 7.2 44.4% 1 534ms 46 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 11.77s 108 1,179
Mercury 2 4.8 10.0 0.0% 0 628ms 159 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 9.56s 72 2,236
Mercury 2 6.5 10.0 50.0% 0 551ms 82 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 7.15s 232 3,117
Mercury 2 3.1 10.0 0.0% 0 533ms 234 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3.1 Pro Preview 10.0 10.0 100.0% 0 23.15s 274 982
Mercury 2 10.0 10.0 100.0% 0 1.27s 197 0

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