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Google AI Studio (Gemini)

Free Gemini API access — 1M-token context, multimodal

TL;DR

Google AI Studio (Gemini) — Free Gemini API access — 1M-token context, multimodal. Free tier: Free tier is per-model. Flash models get the most generous limits; data may be used to improve products on the free tier. API is OpenAI-compatible — point your SDK at https://generativelanguage.googleapis.com/v1beta.

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Latency now

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Uptime 24h

Free RPM

1500

Free RPD

Get free API key → Read docs ↗ Pricing ↗

Free tier limits

15 requests/min
1,500 requests/day
1,000,000 tokens/min
1,500,000 tokens/day

No credit card required.

Models on free tier

gemini-2.0-flash
gemini-1.5-flash
gemini-1.5-flash-8b
gemini-1.5-pro

Upgrade path

Pay-as-you-go via Vertex AI or AI Studio billing. Gemini 1.5 Flash: $0.075/1M input tokens, $0.30/1M output. Pro tiers higher.

Vertex AI for enterprise SLA, VPC-SC, and CMEK.

Endpoint

https://generativelanguage.googleapis.com/v1beta

OpenAI-compatible — works with the OpenAI SDK by overriding base_url.

Quick start

curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent?key=$GEMINI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"contents":[{"parts":[{"text":"Hello in 5 words"}]}]}'

from google import genai

client = genai.Client(api_key="YOUR_KEY")
resp = client.models.generate_content(
    model="gemini-2.0-flash",
    contents="Hello in 5 words",
)
print(resp.text)

import { GoogleGenerativeAI } from "@google/generative-ai";

const ai = new GoogleGenerativeAI(process.env.GEMINI_API_KEY);
const model = ai.getGenerativeModel({ model: "gemini-2.0-flash" });
const r = await model.generateContent("Hello in 5 words");
console.log(r.response.text());

When Google AI Studio (Gemini) is the right pick

Stay on free tier when

Long-context tasks (1M tokens), multimodal (image, audio, video), and apps already in GCP.

Pick something else when

Strict data-privacy users on free tier — Google may use prompts/outputs for product improvement.

FAQ

Is Google AI Studio (Gemini)'s API really free?

Free tier is per-model. Flash models get the most generous limits; data may be used to improve products on the free tier. No credit card is required to sign up.

What models can I call on Google AI Studio (Gemini)'s free tier?

Most commonly used: gemini-2.0-flash, gemini-1.5-flash, gemini-1.5-flash-8b, gemini-1.5-pro. The full current list is on Google AI Studio (Gemini)'s docs page.

Is Google AI Studio (Gemini) OpenAI-compatible?

Yes — point the OpenAI SDK's base URL at `https://generativelanguage.googleapis.com/v1beta` and pass your Google AI Studio (Gemini) API key.

When should I upgrade from Google AI Studio (Gemini)'s free tier?

Pay-as-you-go via Vertex AI or AI Studio billing. Gemini 1.5 Flash: $0.075/1M input tokens, $0.30/1M output. Pro tiers higher. If your traffic is bursty or seasonal, the free tier may be enough; if you need a guaranteed SLA, upgrade.