Api Based Document Submission And Retrieval

via “files api for document handling and multipart uploads”

Claude API — Opus/Sonnet/Haiku, 200K context, tool use, computer use, prompt caching.

Unique: Server-side file storage with reference-based access, enabling reuse across multiple requests without re-uploading. Integrates with vision and text processing for seamless document analysis.

vs others: More convenient than embedding files in each request (reduces token usage and latency), but requires managing file IDs and lifecycle; comparable to OpenAI's file upload but with less documentation on retention and access control