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Google: Gemini 3.1 Pro Preview vs xAI: Grok 4.5

Gemini 3.1 Pro Preview (medium) leads on average score with 9.2 vs 8.9. Gemini 3.1 Pro Preview (medium) has the lower benchmark cost at $1.361 vs $1.707. Gemini 3.1 Pro Preview (medium) is faster at 21.47s vs 76.50s, with pass rates of 90.9% vs 83.3%.

Recommended modelGemini 3.1 Pro Preview (medium)It has the best score here (9.2), while responding about 3.6x faster than Grok 4.5 (high).

Last updated at: 2026-07-17

Metric Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview medium Release: 2026-02-19 Grok 4.5 Grok 4.5 high Release: 2026-07-08
Score 9.2 8.9
Rank #7 #12
Reliability 10.0 10.0
Consistency 10.0 9.2
Tests Correct
Attempt pass rate 90.9% 83.3%
Flaky tests 0 2
Total Runs 66 66
Cost per result 6.801 10.041
Total Cost $1.361 $1.707
Input Price $2.000 / 1M $2.000 / 1M
Output Price $12.000 / 1M $6.000 / 1M
Total Input Tokens 92,287 151,562
Output Tokens 5,232 5,655
Reasoning Tokens 92,726 247,540
Response Time (avg) 21.47s 76.50s
Response Time (max) 88.68s 676.83s
Response Time (total) 322.08s 1683.07s

Hamster playing table tennis

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

#7 Gemini 3.1 Pro Preview

medium
Cost
$0.115
Time
87.2s
Tokens
9,629 tok

#12 xAI: Grok 4.5

high
Cost
$0.015
Time
29.7s
Tokens
2,737 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 Pro Preview 7.9 9.9 66.7% 0 40.17s 8,124 435 41,247
Grok 4.5 10.0 10.0 100.0% 0 155.16s 9,579 357 100,752

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