Gemini 3.6 Flash vs Gemini 3.1 Pro
A plain comparison: what they do, what they cost and which to pick for your task.
In short
Flash answers in seconds and is four times cheaper; Pro is for large documents and serious analysis.
Gemini 3.6 Flash is cheaper: an answer costs 4 times less than with Gemini 3.1 Pro.
Side by side
| Gemini 3.6 Flash | Gemini 3.1 Pro | |
|---|---|---|
| Maker | Google, USA | Google, USA |
| Type | fast and cheap | everyday |
| Good for | The newest fast Gemini: answers in seconds and costs little. | Gemini Pro: works through long texts, spreadsheets and documents. |
| Official, $ per 1M | $0.5 / $3 | $2 / $12 |
| Freepay rate | ×0.25 / ×1.5 | ×1 / ×6 |
| Maker’s subscription | The paid Google AI plan costs about $20 a month. | The paid Google AI plan costs about $20 a month. |
Prices: your text / answer. The “Freepay rate” shows how many balance tokens a model spends per token of its own; Claude Sonnet 5.5 is ×1.
Which to pick for the task
| Task | Better |
|---|---|
| Quick answers | Gemini 3.6 Flash |
| Large documents | Gemini 3.1 Pro |
| Analysis | Gemini 3.1 Pro |
| Price | Gemini 3.6 Flash |
The best way to choose is to ask both models the same question. On Freepay you do it in one chat, switching the model in the input field.
About Gemini 3.6 Flash
The newest fast Gemini: answers in seconds and costs little. Gemini is Google’s AI. It answers fast, works well with large documents and knows a lot of facts. More about Gemini 3.6 Flash.
About Gemini 3.1 Pro
Gemini Pro: works through long texts, spreadsheets and documents. More about Gemini 3.1 Pro.
Frequently asked questions
Which is better, Gemini 3.6 Flash or Gemini 3.1 Pro?
Flash answers in seconds and is four times cheaper; Pro is for large documents and serious analysis.
Which is cheaper, Gemini 3.6 Flash or Gemini 3.1 Pro?
Gemini 3.6 Flash is cheaper: an answer costs 4 times less than with Gemini 3.1 Pro. Official prices per 1M tokens: Gemini 3.6 Flash $0.5 / $3, Gemini 3.1 Pro $2 / $12. On Freepay both are 10x cheaper.
Can I use Gemini 3.6 Flash and Gemini 3.1 Pro in one place?
Yes. On Freepay both models are in one chat, you switch them in the input field, and the balance is shared.
Do I need two subscriptions for Gemini 3.6 Flash and Gemini 3.1 Pro?
No. Gemini needs a Google account, and the stronger models come with a paid Google AI plan. On Freepay one key covers both, with no subscription.