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Gemini 3 Flash Preview (high) vs Grok 4.20

Grok 4.20 leads on average score with 3.4 vs 1.8. Grok 4.20 has the lower benchmark cost at $0.057 vs $0.105. Grok 4.20 is faster at 1.11s vs 52.45s, with pass rates of 4.4% vs 26.1%.

Last updated at: 2026-10-01

Compared models

Rank
#378
Total Output Tokens
12,557
Response Time (avg)
52.45s
Total Cost
$0.105
Rank
#362
Total Output Tokens
1,923
Response Time (avg)
1.11s
Total Cost
$0.057
Recommended model Grok 4.20

It has the best score here (3.4), while costing about 1.9x less than Gemini 3 Flash Preview (high).

Detailed comparison

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview high Release: 2025-12-17 Grok 4.20 Grok 4.20 none Release: 2026-03-31
Score 1.8 3.4
Rank #378 #362
Reliability 10.0 N/A
Consistency 4.0 7.8
Attempts 3/69 54/69
Tests Correct
Attempt pass rate 4.4% 26.1%
Flaky tests 0 0
Total Runs 3 54
Cost per result 10.470 1.570
Total Cost $0.105 $0.057
Input Price $0.500 / 1M $1.250 / 1M
Output Price $3.000 / 1M $2.500 / 1M
Total Input Tokens 134,050 41,313
Output Tokens 1,029 1,923
Reasoning Tokens 11,528 0
Response Time (avg) 52.45s 1.11s
Response Time (max) 52.45s 6.04s
Response Time (total) 52.45s 19.96s
Parameters ~500B total (~20B active) ~1T total (~100B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#378 Gemini 3 Flash Preview

high
No showcase result has been generated for this model yet.
Cost
N/A
Time
-
Tokens
0 tok

#362 xAI: Grok 4.20

none
Cost
$0.004
Time
6.5s
Tokens
1,367 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 Flash Preview 0.0 0.0 0.0% 0 0ms 0 0 0
Grok 4.20 1.1 3.1 0.0% 0 1.22s 1,074 312 0

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