Do I need to pay for Gemini?

Google AI Studio offers a free tier that works for many people. Heavier use may require enabling billing on your Google Cloud project.

Which Gemini model does it use?

A current Gemini Flash model by default for speed and cost. You can switch to Gemini Pro per inbox or per email.

How much does it cost?

Airbox has a free plan to get started. You bring your own AI provider API key, so you pay the provider directly for the tokens you use — there is no AI markup from Airbox.

Is it safe to point Airbox at my real email?

Yes — that's exactly what Airbox is designed for. Airbox only acts on mail from senders you allow, and it only treats the subject and first body line (or a (* … *) block) as instructions. Everything else in a forwarded email is quarantined as untrusted content and never obeyed for your own security and privacy. Your API keys stay fully encrypted.

How to email Google Gemini

The short version

To email Gemini, sign up for Airbox to get a private email address, connect your Google Gemini API key once, then forward or BCC any email to that address. Airbox passes the message to Gemini and emails the answer back into your inbox — no app, no copy-paste, no code.

What you need

A free Airbox account
A Gemini API key from Google AI Studio (it has a free tier for many users)

1. Get your Airbox address

Create a free account and open the dashboard to make an inbox. You get an unguessable address like c4f8xxxx@airbox.fyi. Save it as a contact or BCC it on outgoing mail. See the quick start for the full walkthrough.

2. Connect Google Gemini

Airbox uses your own Google Gemini API key. Many users can get one on the free tier in under a minute.

Open Google AI Studio (aistudio.google.com/apikey) and create an API key — it looks like AIza…
In your Airbox dashboard, go to Connections → + AI & LLM provider → Gemini and paste the key.
Set it as your inbox default and Save. Optionally use gemini-2.5-pro as the model.

Open the Google Gemini key page →

Full step-by-step: Google Gemini connection guide

3. Send your first email

Forward or BCC any email to your Airbox address. To ask for something specific, put a short instruction on the trusted surface — the subject, the first body line, or a (* … *) block at the top:

Subject: Fwd: Q3 planning thread

(* @gemini summarize this and list the next steps *)

---------- Forwarded message ----------
...the email you forwarded...

A plain send or forward with no instruction works too — Airbox summarizes and lists action items by default.

Anything else in a forwarded email is treated as content to read, never as a command. More in the command syntax and forwarding guides.

What you can do

Summarize long threads and newsletters
Draft replies and follow-ups
Extract dates and tasks from a forward
Translate messages between languages

Frequently asked questions

Do I need to pay for Gemini?: Google AI Studio offers a free tier that works for many people. Heavier use may require enabling billing on your Google Cloud project.
Which Gemini model does it use?: A current Gemini Flash model by default for speed and cost. You can switch to Gemini Pro per inbox or per email.
How much does it cost?: Airbox has a free plan to get started. You bring your own AI provider API key, so you pay the provider directly for the tokens you use — there is no AI markup from Airbox.
Is it safe to point Airbox at my real email?: Yes — that's exactly what Airbox is designed for. Airbox only acts on mail from senders you allow, and it only treats the subject and first body line (or a (* … *) block) as instructions. Everything else in a forwarded email is quarantined as untrusted content and never obeyed for your own security and privacy. Your API keys stay fully encrypted.

Ready to try it?

Get your private Airbox address and send your first AI-routed email in minutes. Free to start — bring your own AI.