Free stacks

Projects you can build entirely on free tiers: one offer per role, swappable, limits side by side.

• Stack4 roles
  RAG app

  Answer questions over your own documents: an LLM, embeddings in a vector store, an API host and a bucket for the files.

  LLM API, Vector store, API hosting, Document storage

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• Stack4 roles
  Data warehouse

  Load, model and query analytics data: a warehouse, a transformation layer and somewhere to explore it.

  Warehouse, Transformations, Notebook, Raw file landing

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• Stack4 roles
  ML notebook

  Train and try models: a notebook with a GPU, open models to call, and storage for datasets.

  Notebook with GPU, Hosted models, Dataset storage, Results database

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• Stack4 roles
  Web app

  A full-stack side project: frontend hosting, a database, a cache and sign-in.

  Hosting, Database, Cache and queues, Sign-in

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• Stack3 roles
  LLM chatbot

  A chat assistant with memory: a model, a place to run it, and a store for conversations.

  LLM API, Runtime, Conversation store

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• Stack3 roles
  Cloud sandbox

  Learn a hyperscaler without a bill: the sign-up credit and the always-free allowance side by side.

  Sign-up credit, Always-free allowance, Edge functions

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