Introduction
Google exposes the Gemini family through AI Studio with a free API tier that includes per-minute and daily rate limits. The free tier supports text, vision, and multimodal inputs, making it the go-to entry point for personal projects and learning. As of 2026-08-22, Gemini officially joined the APIShare free channel pool: 10 chat models verified, all entering the main ranking.
Models and Quotas
Endpoint: https://generativelanguage.googleapis.com/v1beta/models/{model}:generateContent. The 10 models currently in the pool:
| Model | Input cap | Max output | Positioning |
|---|---|---|---|
gemini-3.7-flash |
1M | 64K | Current flagship, complex tasks |
gemini-3.6-flash |
1M | 64K | Google's recommended stable pick for new projects |
gemini-3.5-flash |
1M | 64K | Stable generation |
gemini-3-flash-preview |
1M | 64K | Preview generation |
gemini-3.1-flash-lite |
1M | 64K | Lightweight, low-cost pipelines |
gemini-3.1-flash-lite-preview |
1M | 64K | Lightweight (preview) |
gemini-flash-latest |
1M | 64K | Alias that tracks the newest Flash |
gemini-flash-lite-latest |
1M | 64K | Alias that tracks the newest Lite |
gemma-4-31b-it |
256K | — | Open-source workhorse |
gemma-4-26b-a4b-it |
256K | — | Open-source lightweight |
The Gemini Flash family ships a uniform 1M input / 64K output envelope; the gemma-4 twins run a 256K context. Free-tier throughput is roughly 15 RPM / 1500 RPD (check the console); back off with a token bucket on 429s.
ℹ️ Specialist capabilities (image generation, TTS, realtime voice, embeddings, video/music) carry zero free-tier quota and are not in the pool — use the paid tier or watch for future intake notices.
Call Example
from google import genai
client = genai.Client(api_key="AIza...")
resp = client.models.generate_content(
model="gemini-3.6-flash",
contents="Explain the attention mechanism in transformers.",
)
print(resp.text)
Caveats
Three constraints matter in practice. First, free-tier request data may be used for model improvement — the paid tier opts out, so sensitive workloads must upgrade. Second, model versions on the free tier can lag the paid tier by a release cycle. Third, regional availability varies — confirm in the docs before building region-specific logic. The 1M context window is excellent for long-document Q&A and repo-scale analysis, but the 1500 RPD cap means pacing batch jobs carefully. Handle prompt_feedback.block_reason explicitly: treating a safety-blocked response as an empty success silently corrupts downstream logic. Finally, never use the gemini-2.5-* family (they return 404 for new users' API keys); older gemini-1.5-* and gemini-2.0-flash have also left the free-tier list — migrate existing code to gemini-3.5-flash or newer.
🚀 Get Started: One-Click Free API Access
Want to call all the free models above with a single API key, no need to sign up for each provider? Apishare.cc provides a unified API Key — one key, 100+ models, free models at zero cost.
👉 Register on Apishare.cc → Get your unified API Key
📊 Want to see more free model rankings? Check out the Sep 2026 Free LLM API Rankings →
Start on APIShare in three steps
Ready to try the options above? Three steps get you running:
- Create an account - open the APIShare free API registration page. An email address is all you need; no credit card required.
- Browse the free API catalog - head to the complete free API list and filter by text, image, audio, embedding, or multimodal. Each entry shows its free quota, rate limit, and availability status.
- Grab a key and integrate - generate an API key in your dashboard and paste it into your application. Every plan includes actively-updated APIs gateways covering every provider mentioned in this guide.
Already have an account? Use the APIShare login page, or visit the APIShare homepage for a full platform overview. Registration is free, and you can stop at any time.
Every outbound link in this guide carries a UTM parameter (utm_source=apishare_devto&utm_medium=referral&utm_campaign=free_api_article) for clean campaign attribution.
About the Free API Aggregator
The models covered in this guide are all served through the APIShare free API aggregator, which gives you one key for the whole catalog.
- Full model catalog: APIShare free API directory
- Sign up for a free trial key: Register and claim your API key