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Google: Gemini 3.1 Pro Preview vs Google: Gemma 4 31B

Last updated at: 2026-05-10

Metric Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19 Gemma 4 31B Gemma 4 31B medium Release: 2026-04-02 Free Available
Score 9.6 8.2
Rank #2 #14
Reliability 10.0 6.7
Consistency 10.0 9.6
Tests Correct
Attempt pass rate 94.7% 77.2%
Flaky tests 0 1
Total Runs 57 57
Cost per result 3.300 0.158
Total Cost $0.594 $0.023
Input Price $2.000 / 1M $0.130 / 1M
Output Price $12.000 / 1M $0.380 / 1M
Output Tokens 1,944 14,426
Reasoning Tokens 41,839 37,964
Response Time (avg) 15.15s 28.72s
Response Time (max) 40.61s 90.14s
Response Time (total) 181.78s 488.27s

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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
Gemma 4 31B 10.0 10.0 100.0% 0 12.89s 962 2,046
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
Gemma 4 31B 4.7 1.6 66.7% 1 70.97s 3,166 5,449
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
Gemma 4 31B 3.0 10.0 0.0% 0 0ms 0 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
Gemma 4 31B 10.0 10.0 100.0% 0 21.11s 1,822 2,951
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
Gemma 4 31B 7.7 10.0 66.7% 0 38.48s 4,349 8,985
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
Gemma 4 31B 10.0 10.0 100.0% 0 9.57s 105 888
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
Gemma 4 31B 10.0 10.0 100.0% 0 12.76s 533 2,035
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
Gemma 4 31B 9.9 10.0 100.0% 0 27.63s 1,797 5,596
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
Gemma 4 31B 3.0 10.0 0.0% 0 0ms 0 0
Trivia 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 6.27s 12 1,297
Gemma 4 31B 3.0 10.0 0.0% 0 90.14s 1,692 10,014

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