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Google: Gemini 3.5 Flash vs Grok 4.20 Multi Agent Beta

Summary

Gemini 3.5 Flash vs Grok 4.20 Multi Agent Beta benchmark comparison: Gemini 3.5 Flash leads on average score with 9.4 vs 6.6. Gemini 3.5 Flash has the lower benchmark cost at $0.349 vs $5.599. Gemini 3.5 Flash is faster at 3.27s vs 9.69s, with pass rates of 90.5% vs 59.3%.

Recommended model: Gemini 3.5 Flash - It has the best score here (9.4), while costing about 16.1x less than Grok 4.20 Multi Agent Beta.

Last updated at: 2026-06-10

Metric Gemini 3.5 Flash Gemini 3.5 Flash low Release: 2026-05-19 Grok 4.20 Multi Agent Beta Grok 4.20 Multi Agent Beta medium Release: 2026-03-12
Score 9.4 6.6
Rank #3 #85
Reliability 10.0 N/A
Consistency 10.0 7.9
Tests Correct
Attempt pass rate 90.5% 59.3%
Flaky tests 0 5
Total Runs 63 52
Cost per result 1.834 62.923
Total Cost $0.349 $5.599
Input Price $1.500 / 1M $4.235 / 1M
Output Price $9.000 / 1M $4.235 / 1M
Total Input Tokens 36,938 721,952
Output Tokens 2,033 294,668
Reasoning Tokens 30,519 305,374
Response Time (avg) 3.27s 9.69s
Response Time (max) 9.05s 35.28s
Response Time (total) 68.65s 155.07s

Generation showcase

Hamster playing table tennis

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

#3 Gemini 3.5 Flash

low
Cost
$0.068
Time
39.1s
Tokens
7,588 tok

#85 Grok 4.20 Multi Agent Beta

medium
Cost
$0.261
Time
123.4s
Tokens
199,344 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 3.5 Flash 10.0 10.0 100.0% 0 2.52s 494 209 2,536
Grok 4.20 Multi Agent Beta 6.9 5.8 75.0% 2 3.46s 90,925 33,706 33,077
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.8 10.0 66.7% 0 6.71s 8,118 458 13,420
Grok 4.20 Multi Agent Beta 10.0 10.0 100.0% 0 27.11s 13,212 86 13,141
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 6.44s 12,873 351 3,050
Grok 4.20 Multi Agent Beta 3.0 10.0 0.0% 0 0ms 0 0 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 1.81s 7,548 279 1,164
Grok 4.20 Multi Agent Beta 10.0 10.0 100.0% 0 5.54s 97,232 25,306 25,051
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 7.7 10.0 66.7% 0 3.39s 633 12 4,538
Grok 4.20 Multi Agent Beta 2.9 7.2 11.1% 1 24.67s 328,253 164,609 163,647
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.27s 486 119 916
Grok 4.20 Multi Agent Beta 5.8 2.8 66.7% 1 6.40s 41,387 15,848 15,746
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 9.9 10.0 100.0% 0 1.86s 615 71 1,652
Grok 4.20 Multi Agent Beta 9.8 10.0 100.0% 0 3.52s 43,923 19,752 19,617
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 2.35s 558 288 2,150
Grok 4.20 Multi Agent Beta 6.7 7.9 55.6% 1 5.19s 107,020 35,361 35,095
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 3.27s 5,457 234 403
Grok 4.20 Multi Agent Beta 3.0 10.0 0.0% 0 0ms 0 0 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Gemini 3.5 Flash 10.0 10.0 100.0% 0 1.88s 156 12 690
Grok 4.20 Multi Agent Beta - - - - - - - - -

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