GeminivsGrok

Gemini 3.6 Flash vs Grok 4.20 Non-Reasoning

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Gemini 3.6 Flash

Fast / Budget

Grok 4.20 Non-Reasoning

Mid-tier
Input $/MTok
$0.75
$1.25
Output $/MTok
$3.75
$2.50
Cache discount
90% off
84% off
Context
1,048.576K
1,000K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
0
Code Review
0
vs
0
Summarization
0
vs
0
Q&A
0
vs
0
Extraction
0
vs
0
Reasoning
0
vs
0
Classification
0
vs
0
Creative Writing
0
vs
0
Gemini 3.6 Flash
Grok 4.20 Non-Reasoning

Guidance

When to use Gemini 3.6 Flash vs Grok 4.20 Non-Reasoning

Choose Gemini 3.6 Flash when...

  • -Cost matters: 40% cheaper on input tokens
  • -You need a larger context window (1,048.576K vs 1,000K)

Choose Grok 4.20 Non-Reasoning when...

  • Similar performance; consider provider preference or ecosystem fit.

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3.6 Flash
Grok 4.20 Non-Reasoning
100K tokens
$0.16
$0.16Cheaper
1M tokens
$1.65Cheaper
$3.25
10M tokens
$16.50Cheaper
$32.50

FAQ

When should I use Gemini 3.6 Flash instead of Grok 4.20 Non-Reasoning?

Gemini 3.6 Flash and Grok 4.20 Non-Reasoning perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Grok 4.20 Non-Reasoning cheaper than Gemini 3.6 Flash?

Grok 4.20 Non-Reasoning input costs $1.25/MTok, which is 67% more than Gemini 3.6 Flash at $0.75/MTok.

What are the context window sizes for Gemini 3.6 Flash and Grok 4.20 Non-Reasoning?

Gemini 3.6 Flash has a 1,048.576K token context window. Grok 4.20 Non-Reasoning has a 1,000K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.