How to Get Your Google Gemini API Key | Full Self Posting ← Back to All Tutorials

How to Get Your Google Gemini API Key

Fast, capable AI writing with generous free tier

Google Gemini offers excellent writing quality, massive context windows, and a generous free tier. Most FSP users pay $0 for Gemini.

📋 What’s in This Guide

  1. Why Use Gemini?
  2. Go to Google AI Studio
  3. Create Your API Key
  4. Add to Full Self Posting
  5. Choosing a Model
  6. Pricing & Free Tier

Time required: About 2 minutes FREE TIER

Why Use Gemini?

AdvantageDetails
Free Tier60 requests/minute free—enough for dozens of posts daily
FastGemini Flash is optimized for speed
QualityGemini 2.5 Pro rivals GPT-5
Simple SetupNo payment method required to start

Pro tip: Use Gemini for writing (free) + OpenAI just for DALL-E images = best of both worlds.

1 Go to Google AI Studio

  1. Go to aistudio.google.com/apikey
  2. Sign in with your Google account

Open Google AI Studio →

2 Create Your API Key

  1. Click Create API Key
  2. Select a project (or create new)
  3. Click Copy
✅ Your key looks like:
AIzaSyDfOhwdOiOR9LjVjgI5YueJ9fADJaewccg

3 Add to Full Self Posting

  1. In WordPress: FSP Pro → Brain & API Keys
  2. Paste into Google Gemini API Key
  3. Set AI Provider to Google Gemini
  4. Click Save Settings
✅ Done!

FSP will now use Gemini for content writing.

Choosing a Model

ModelBest ForSpeed
Gemini 2.5 ProComplex topics, highest qualitySlower
Gemini 2.5 Flash ✓Best balance (recommended)Fast
Gemini 2.5 Flash LiteMaximum speedFastest

Pricing & Free Tier

ModelFree Tier
Gemini 2.5 Flash60 requests/minute FREE
Gemini 2.5 Pro2 requests/minute FREE
💡 For most FSP users, Gemini is FREE

You could generate ~30 posts/hour, ~720 posts/day—all at zero cost.

FAQ

Do I need a credit card?

No. Free tier works without payment.

Can I use both Gemini and OpenAI?

Yes! Add both keys. Use Gemini for writing, OpenAI for DALL-E images.

Why can’t Gemini generate images?

Google’s image API isn’t available. Keep OpenAI configured for DALL-E images.

Quick Links

Get API Key View Pricing

Next Steps