tokevenGeminivsGrok
Gemini 3.5 Flash vs Grok 4.3
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Gemini 3.5 Flash
Fast / BudgetGrok 4.3
Mid-tierInput $/MTok
$1.50
$1.25
Output $/MTok
$9.00
$2.50
Cache discount
90% off
84% off
Context
1.0M
1M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
61
vs
39
Code Review
65
vs
0
Summarization
76
vs
60
Q&A
84
vs
0
Extraction
73
vs
70
Reasoning
82
vs
71
Classification
92
vs
0
Creative Writing
75
vs
71
Gemini 3.5 Flash
Grok 4.3
Guidance
When to use Gemini 3.5 Flash vs Grok 4.3
Choose Gemini 3.5 Flash when...
- -You need strong reasoning (confidence 82 vs 71)
- -You need strong summarization (confidence 76 vs 60)
- -You need strong creative writing (confidence 75 vs 71)
- -You need strong extraction (confidence 73 vs 70)
- -You need a larger context window (1.0M vs 1M)
Choose Grok 4.3 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 4.3
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 4.3?
Gemini 3.5 Flash outperforms Grok 4.3 for Code Generation, Summarization, Extraction. It costs $1.50/$9.00 per million tokens (input/output).
Is Grok 4.3 cheaper than Gemini 3.5 Flash?
Yes. Grok 4.3 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 4.3?
Gemini 3.5 Flash has a 1.0M token context window. Grok 4.3 has a 1M token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Gemini 3.5 Flash and Grok 4.3 stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.