GeminivsGrok

Gemini 3.5 Flash vs Grok 4.20 Multi-Agent

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

Pricing

Side-by-side pricing

Gemini 3.5 Flash

Fast / Budget

Grok 4.20 Multi-Agent

Mid-tier
Input $/MTok
$1.50
$1.25
Output $/MTok
$9.00
$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
68
vs
0
Code Review
65
vs
0
Summarization
85
vs
0
Q&A
84
vs
0
Extraction
90
vs
0
Reasoning
60
vs
0
Classification
92
vs
0
Creative Writing
55
vs
0
Gemini 3.5 Flash
Grok 4.20 Multi-Agent

Guidance

When to use Gemini 3.5 Flash vs Grok 4.20 Multi-Agent

Choose Gemini 3.5 Flash when...

  • -You need a larger context window (1,048.576K vs 1,000K)
  • Similar performance; consider provider preference or ecosystem fit.

Choose Grok 4.20 Multi-Agent when...

  • -Cost matters: 17% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3.5 Flash
Grok 4.20 Multi-Agent
100K tokens
$0.38
$0.16Cheaper
1M tokens
$3.75
$3.25Cheaper
10M tokens
$37.50
$32.50Cheaper

FAQ

When should I use Gemini 3.5 Flash instead of Grok 4.20 Multi-Agent?

Gemini 3.5 Flash and Grok 4.20 Multi-Agent perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Grok 4.20 Multi-Agent cheaper than Gemini 3.5 Flash?

Yes. Grok 4.20 Multi-Agent input costs $1.25/MTok vs $1.50/MTok for Gemini 3.5 Flash, saving 17% on input.

What are the context window sizes for Gemini 3.5 Flash and Grok 4.20 Multi-Agent?

Gemini 3.5 Flash has a 1,048.576K token context window. Grok 4.20 Multi-Agent 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.