# Isaacus Docs

> Explore guides and reference documentation for the Isaacus API.

## Docs

- [Universal classification](https://docs.isaacus.com/api-reference/classifications/universal-classification.md): Classify documents with an Isaacus universal classification model.
- [Embedding](https://docs.isaacus.com/api-reference/embeddings/embedding.md): Vectorize content with an Isaacus embedding model.
- [Enrichment](https://docs.isaacus.com/api-reference/enrichments/enrichment.md): Enrich documents with an Isaacus enrichment model.
- [Errors](https://docs.isaacus.com/api-reference/errors.md): How the Isaacus API communicates errors
- [Extractive question answering](https://docs.isaacus.com/api-reference/extractions/extractive-question-answering.md): Extract information from documents with an Isaacus extractive question answering model.
- [Making requests](https://docs.isaacus.com/api-reference/making-requests.md): The basics of making requests to the Isaacus API
- [Reranking](https://docs.isaacus.com/api-reference/rerankings/reranking.md): Score and rank documents by their relevance to queries with an Isaacus reranker.
- [Embedding](https://docs.isaacus.com/capabilities/embedding.md): Quantify the relevance and semantic similarity of data
- [Enrichment](https://docs.isaacus.com/capabilities/enrichment.md): Convert unstructured documents into information-rich knowledge graphs
- [Extractive question answering](https://docs.isaacus.com/capabilities/extractive-question-answering.md): Extract answers to questions from documents
- [Capabilities](https://docs.isaacus.com/capabilities/introduction.md): What the Isaacus API can do for you
- [Reranking](https://docs.isaacus.com/capabilities/reranking.md): Score and sort documents based on their relevance to queries
- [Universal classification](https://docs.isaacus.com/capabilities/universal-classification.md): Classify documents without examples
- [Isaacus Legal Graph Schema (ILGS)](https://docs.isaacus.com/ilgs/introduction.md): A formal specification of the Isaacus Legal Graph Schema (ILGS)
- [Isaacus on Amazon SageMaker](https://docs.isaacus.com/integrations/amazon-sagemaker.md): Sovereign deployment of Isaacus models on Amazon SageMaker
- [Isaacus Query Language (IQL)](https://docs.isaacus.com/iql/introduction.md): A gentle introduction to the first legal AI query language
- [IQL specification](https://docs.isaacus.com/iql/specification.md): The formal definition of the Isaacus Query Language (IQL)
- [IQL templates](https://docs.isaacus.com/iql/templates.md): Highly-optimized templates for Isaacus models
- [Chunking](https://docs.isaacus.com/models/chunking.md): How Isaacus breaks up long documents into smaller chunks
- [Our models](https://docs.isaacus.com/models/introduction.md): Accurate, efficient, and easy-to-use legal models
- [Tokenization](https://docs.isaacus.com/models/tokenization.md): How Isaacus models "read" text
- [Calculating costs](https://docs.isaacus.com/pricing/costs.md): How Isaacus calculates API charges
- [Credits](https://docs.isaacus.com/pricing/credits.md): Free Isaacus API credits for new users, startups, and non-profits
- [Prices](https://docs.isaacus.com/pricing/prices.md): Simple, transparent, and affordable legal AI
- [Quickstart](https://docs.isaacus.com/quickstart.md): Start building awesome applications with the Isaacus API in under 5 minutes
- [Welcome to the Isaacus Docs](https://docs.isaacus.com/welcome.md): Explore helpful guides and resources for building with our API

## OpenAPI Specs

- [openapi.documented](https://app.stainless.com/api/spec/documented/isaacus/openapi.documented.yml)