Google AI Studio (aistudio.google.com) is Google's free developer playground for Gemini models. It's the fastest way to start experimenting with Gemini — no credit card required, no cloud project setup, generous free tier.
| Model | Free RPM | Free TPM | Paid cost (input/1M) |
|---|---|---|---|
| Gemini 2.5 Flash | 10 | 250K | $0.10 |
| Gemini 2.5 Pro | 2 | 32K | $1.25 |
| Gemini 1.5 Flash | 15 | 1M | $0.075 |
| Gemini 1.5 Pro | 2 | 32K | $1.25 |
The free tier is surprisingly generous for prototyping — 250K tokens/minute on Gemini 2.5 Flash means you can run significant experiments before hitting limits.
| AI Studio | Vertex AI | |
|---|---|---|
| Setup | Google account only | Google Cloud project required |
| Free tier | Yes | Limited |
| Data residency | Google's default | Configurable regions |
| Enterprise features | No | Yes (VPC, CMEK, audit logs) |
| SLA | No | Yes |
| Best for | Prototyping | Production |
API keys from AI Studio work with the standard Tokoscope integration — no changes needed. Just use your AI Studio key as the Gemini API key:
import google.generativeai as genai
from tokoscope import wrap
genai.configure(api_key="YOUR_AI_STUDIO_KEY")
model = wrap(
genai.GenerativeModel("gemini-2.5-flash"),
api_key="ts_live_..."
)
result = model.generate_content("Hello")
Tokoscope works with AI Studio API keys and Vertex AI. Free to start.
Get started free →