Free LLM chatbot stack
A chat assistant with memory: a model, a place to run it, and a store for conversations.
Updated 8h ago
3 roles3 with no end date1 of 3 need no card
| Role | Pick | What you get | Swap for |
|---|---|---|---|
LLM API The model behind the replies. | LLM API  | Flash models, free of charge | |
Runtime Streams replies to the browser. | Runtime  | 100 GB transfer a month | |
Conversation store History and per-user memory. | Conversation store  | 500K commands a month |
Limits side by side
LLM API
Google Gemini API free tier
Price: Free of charge input and output (Flash) · Rate limits: RPM, TPM and RPD per project · Reset: Daily quota resets at midnight Pacific · Data use: Free-tier content used to improve Google products · Batch, Flex: Not available on free tier
Sign upRuntime
Vercel Hobby
Edge requests: 1M / month · Data transfer: 100 GB / month · Deployments: 100 / day · Projects: 200 · Blob storage: 1 GB / month
Sign upConversation store
Upstash Redis Free
Data size: 256 MB · Commands: 500K / month · Bandwidth: 10 GB / month · Databases: 1
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