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Google: Gemini 3.1 Flash Lite vs xAI: Grok 4.5

Summary

Gemini 3.1 Flash Lite (medium) vs Grok 4.5 (low) benchmark comparison: Grok 4.5 (low) leads on average score with 7.8 vs 7.8. Gemini 3.1 Flash Lite (medium) has the lower benchmark cost at $0.071 vs $0.760. Gemini 3.1 Flash Lite (medium) is faster at 3.23s vs 15.48s, with pass rates of 65.1% vs 74.6%.

Recommended model: Gemini 3.1 Flash Lite (medium) - Its score stays close to the best score here (7.8 vs 7.8), while costing about 10.8x less than Grok 4.5 (low).

Last updated at: 2026-07-08

Metric Gemini 3.1 Flash Lite Gemini 3.1 Flash Lite medium Release: 2026-05-08 Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 7.8 7.8
Rank #37 #34
Reliability 10.0 10.0
Consistency 9.2 9.7
Tests Correct
Attempt pass rate 65.1% 74.6%
Flaky tests 2 1
Total Runs 63 63
Cost per result 0.539 5.061
Total Cost $0.071 $0.760
Input Price $0.250 / 1M $2.000 / 1M
Output Price $1.500 / 1M $6.000 / 1M
Total Input Tokens 36,808 58,652
Output Tokens 2,254 1,735
Reasoning Tokens 38,300 105,233
Response Time (avg) 3.23s 15.48s
Response Time (max) 10.87s 205.28s
Response Time (total) 67.80s 324.98s

Generation showcase

Hamster playing table tennis

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

#37 Gemini 3.1 Flash Lite

medium
Cost
$0.003
Time
5.3s
Tokens
1,754 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 9.1 10.0 75.0% 0 2.39s 502 604 4,201
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 5.5 10.0 33.3% 0 3.81s 8,134 459 8,978
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 10.0 10.0 100.0% 0 10.87s 12,873 327 7,401
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 10.0 10.0 100.0% 0 2.60s 7,362 279 2,845
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 2.9 7.2 11.1% 1 3.16s 643 15 5,165
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 10.0 10.0 100.0% 0 2.60s 488 84 1,142
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 9.9 10.0 100.0% 0 2.59s 623 75 3,320
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 7.6 7.2 77.8% 1 1.95s 568 165 2,450
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 10.0 10.0 100.0% 0 4.55s 5,457 234 921
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 3.0 10.0 0.0% 0 3.08s 158 12 1,877
Grok 4.5 3.0 10.0 0.0% 0 13.98s 789 15 4,806

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