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Google: Gemini 3.1 Flash Lite Preview vs xAI: Grok 4.5

Summary

Gemini 3.1 Flash Lite Preview (medium) vs Grok 4.5 (low) benchmark comparison: The average score is effectively tied at 7.8 vs 7.8. Gemini 3.1 Flash Lite Preview (medium) has the lower benchmark cost at $0.068 vs $0.760. Gemini 3.1 Flash Lite Preview (medium) is faster at 3.96s vs 15.48s, with pass rates of 61.9% vs 74.6%.

Recommended model: Gemini 3.1 Flash Lite Preview (medium) - It has the best score here (7.8), while costing about 11.2x less than Grok 4.5 (low).

Last updated at: 2026-07-08

Metric Gemini 3.1 Flash Lite Preview Gemini 3.1 Flash Lite Preview medium Release: 2026-03-03 Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 7.8 7.8
Rank #35 #34
Reliability 10.0 10.0
Consistency 10.0 9.7
Tests Correct
Attempt pass rate 61.9% 74.6%
Flaky tests 0 1
Total Runs 63 63
Cost per result 0.523 5.061
Total Cost $0.068 $0.760
Input Price $0.250 / 1M $2.000 / 1M
Output Price $1.500 / 1M $6.000 / 1M
Total Input Tokens 37,786 58,652
Output Tokens 2,210 1,735
Reasoning Tokens 36,744 105,233
Response Time (avg) 3.96s 15.48s
Response Time (max) 14.93s 205.28s
Response Time (total) 83.06s 324.98s

Generation showcase

Hamster playing table tennis

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

#35 Gemini 3.1 Flash Lite Preview

medium
Cost
$0.003
Time
5.2s
Tokens
1,944 tok

#34 xAI: Grok 4.5

low
Cost
$0.011
Time
12.4s
Tokens
2,018 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 9.1 10.0 75.0% 0 2.33s 512 570 4,305
Grok 4.5 10.0 10.0 100.0% 0 2.75s 2,991 261 3,000
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 4.09s 8,126 461 8,597
Grok 4.5 10.0 10.0 100.0% 0 13.72s 9,579 303 15,641
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 10.0 10.0 100.0% 0 14.93s 13,403 327 7,347
Grok 4.5 3.0 10.0 0.0% 0 8.16s 15,084 261 2,370
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 10.0 10.0 100.0% 0 2.29s 7,362 279 2,952
Grok 4.5 10.0 10.0 100.0% 0 3.44s 8,937 225 2,549
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 3.0 10.0 0.0% 0 4.21s 639 18 5,325
Grok 4.5 3.0 10.0 0.0% 0 72.64s 2,514 14 70,275
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 10.0 10.0 100.0% 0 3.16s 488 96 1,488
Grok 4.5 6.1 3.1 66.7% 1 4.88s 1,077 98 1,253
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 10.0 10.0 100.0% 0 1.91s 621 72 2,121
Grok 4.5 9.8 10.0 100.0% 0 2.80s 1,857 57 1,878
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 7.7 10.0 66.7% 0 5.30s 566 141 1,896
Grok 4.5 10.0 10.0 100.0% 0 3.20s 2,430 217 2,590
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 10.0 10.0 100.0% 0 3.80s 5,909 234 912
Grok 4.5 10.0 10.0 100.0% 0 5.83s 13,394 284 871
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.1 Flash Lite Preview 3.0 10.0 0.0% 0 2.68s 160 12 1,801
Grok 4.5 3.0 10.0 0.0% 0 13.98s 789 15 4,806

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