Best Gateways for a Google Gemini API Key

How to get a Google Gemini API key (Google AI Studio)

The fastest way to a Gemini API key is Google AI Studio: open aistudio.google.com, click Get API key and copy your Google AI API key. That key unlocks the Gemini API across the Gemini 3.5 Flash API ($1.50 / $9 per 1M tokens, with a large free tier) and Gemini 3.1 Pro Preview ($2 / $12). Searches for “api key gemini”, “gemini get api key” or “google ai api key” all lead to this same flow.

One key for Gemini — and GPT and Claude too

If you want Gemini alongside other models, an AI API gateway gives you one OpenAI-compatible key that calls Gemini 3.5 Flash and Gemini 3.1 Pro without Google Cloud project setup. Novarelay is our top pick: it exposes the Gemini models through a single key at up to 20% below Google’s direct rates, with pay-as-you-go credits from $1 and one unified bill for Gemini, GPT and Claude.

How much does the Gemini 3.5 Flash API cost?

Gemini 3.5 Flash is $1.50 per 1M input tokens and $9 per 1M output tokens as of July 2026, with cached input around $0.15 and a generous free tier in Google AI Studio.

Do I need Google Cloud to use the Gemini API?

No. You can get a Gemini API key directly in Google AI Studio, or use an OpenAI-compatible gateway that calls the Gemini API for you without a Google Cloud project.

What is Gemini 3.1 Pro Preview?

It is Google’s Pro-tier model (in preview) at roughly $2 / $12 per 1M tokens — higher quality than Flash for complex tasks, reachable with the same Gemini API key or a gateway key.

Last updated: July 2026 · Independent comparison, funded by referral commissions. Model names and trademarks (OpenAI, ChatGPT, GPT, Anthropic, Claude, Google, Gemini) belong to their respective owners and are used for identification only. Pricing is set by each provider and can change — always verify before you build.