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Google Gemini vs Supabase
Side-by-side comparison of Google Gemini and Supabase.
Quick summary
Google Gemini — Google's multimodal AI with massive context windows. Google's Gemini family (Gemini 2.0 Flash, 1.5 Pro) is a multimodal LLM with up to 2M token context, deep integration with Google Cloud and Vertex AI, and competitive pricing.
Supabase — The open source Firebase alternative. Supabase is an open-source backend-as-a-service built on PostgreSQL. It provides authentication, realtime subscriptions, storage, edge functions, and a hosted database.
Feature comparison
| Feature | Google Gemini | Supabase |
|---|---|---|
| Pricing model | Freemium | Freemium |
| Starting price | Free tier + pay | $25/mo |
| Free tier | Yes | Yes |
| Open source | No | Yes |
| Vision | Yes | — |
| Streaming | Yes | — |
| Embeddings | Yes | — |
| Max Output | 8K | — |
| Fine-tuning | Yes | — |
| Context Window | 2M | — |
| Flagship Model | Gemini 1.5 Pro | — |
| Reasoning Model | Gemini 2.0 Flash Thinking | — |
| Function Calling | Yes | — |
| EU Data Residency | Yes | — |
| Auth | — | Yes |
| Storage | — | Yes |
| Database | — | PostgreSQL |
| Realtime | — | Yes |
| Free Tier | — | 500MB DB + 1GB storage |
| Self-hosted | — | Yes |
| Edge Functions | — | Yes |
| Row Level Security | — | Yes |
Google Gemini
Google's multimodal AI with massive context windows
Pros
- Massive 2M token context window
- Free tier for evaluation
- Native multimodal (audio, video, image)
- Cheapest flagship model
Cons
- Quality variance vs GPT-4o/Claude
- Safety filters can be aggressive
- Google Cloud integration can be overwhelming
Supabase
The open source Firebase alternative
Pros
- Open source and self-hostable
- Standard PostgreSQL — no vendor lock-in
- Generous free tier
- Great DX with auto-generated APIs
Cons
- Cold starts on free tier
- Edge function ecosystem still maturing
Which should you choose?
Choose Google Gemini if a free tier is important for your stage. Choose Supabase if you value open source and want the option to self-host, and a free tier is important for your stage.