Retrievia
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Map of Retrievia

Pick a phase to continue your journey.

Welcome Village

What AI is, essential vocabulary, and using prompts with a critical eye.

New to AI? Start here

  1. V0V0
  2. V1V1
  3. V2V2
  4. V3V3
  5. V4V4

World 0 · The Summoner

Write better prompts: clear instructions, few-shot, and system prompts.

Already a dev? Jump here

  1. 0-10-1
  2. 0-20-2
  3. 0-30-3
  4. 0-40-4
  5. 0-50-5
  6. 0-60-6
  7. 0-70-7
  8. 0-80-8
  9. 0-90-9
  10. 0-100-10
  11. 0-110-11
  12. 0-BOSS0-BOSS

World 1 · The Model Workshop

Data, models, training, and evaluation: the bridge between prompts and RAG.

New to AI? Start here

  1. I-11-1
  2. I-21-2
  3. I-31-3
  4. I-41-4
  5. I-BOSS1-BOSS

World 2 · The Librarian

Why keyword search fails — embeddings, similarity, and chunking.

Already a dev? Jump here

  1. 1-12-1
  2. 1-22-2
  3. 1-32-3
  4. 1-42-4

World 3 · The Alchemist

Build a full RAG pipeline: retrieve, generate, and hunt hallucinations.

  1. 2-13-1
  2. 2-23-2
  3. 2-33-3
  4. 2-43-4
  5. 2-53-5

World 4 · The Gem Cutter

Free account

Advanced retrieval: labels, reranking, neighbor expansion, and semantic compression.

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  1. 3-14-1
  2. 3-24-2
  3. 3-34-3
  4. 3-44-4

World 5 · The Engineer

Free account

Production: caching, PDF ingestion, vector backend, and the reranker's budget.

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  1. 4-15-1
  2. 4-25-2
  3. 4-35-3
  4. 4-45-4

World 6 · The Cartographer

Free account

GraphRAG: entities, provenance, traversal, and multi-hop questions.

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Create a free account to play
  1. 6-16-1
  2. 6-26-2
  3. 6-36-3
  4. 6-46-4
  5. 6-56-5
  6. 6-66-6
  7. 6-76-7
  8. 6-BOSS6-BOSS

World 7 · The Guardian

Free account

Terminology, concept drift, confidence, gates, and abstention.

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Create a free account to play
  1. 7-17-1
  2. 7-27-2
  3. 7-37-3
  4. 7-47-4
  5. 7-57-5
  6. 7-67-6
  7. 7-77-7
  8. 7-BOSS7-BOSS