Readwise Chat (RAG over Highlights)
Uses GPT-5.1 to answer questions with RAG over the user's full highlight library via WebSocket streaming.
Prerequisites
Chat requires session cookies (not API token). Check if configured:
grep SESSION_COOKIES ~/.readwise/env
If missing, run:
readwise auth session
This launches Chrome, navigates to readwise.io/chat, and extracts httpOnly session cookies via CDP.
Commands
One-Shot Query
Streams the response to stdout as it arrives:
readwise chat "What are my highlights about fiduciary duty?"
readwise chat "Summarize my notes on proxy advisors"
readwise chat "Compare what I've read about SEC regulation vs FINRA"
With JSON output (includes related highlights):
readwise chat "What do my highlights say about broker-dealer regulation?" --json
Interactive REPL
Multi-turn conversation with context preserved:
readwise chat-interactive
readwise chat-interactive --model 5.1-thinking # reasoning model
Type exit to quit.
Conversation Management
readwise chat-list # List all conversations
readwise chat-get <id> # Get conversation with messages
readwise chat-delete <id> # Delete conversation
readwise chat-rename <id> "Better Title" # Rename conversation
Model Options
| Model ID | Name | Use Case |
|----------|------|----------|
| 5.1 | Fast (default) | Quick answers, simple lookups |
| 5.1-thinking | Thinking | Complex synthesis, reasoning |
Chat vs Search
| Feature | readwise chat | readwise search |
|---------|-----------------|-------------------|
| Returns | Synthesized answer + highlights | Raw highlight matches |
| Model | GPT-5.1 RAG | Vector similarity |
| Auth | Session cookies | API token |
| Speed | ~3-10s (streaming) | ~2s |
| Highlights returned | Up to 69 | Top-N vector matches |
| Multi-turn | Yes (interactive) | No |
Use chat when: You want a synthesized answer, cross-document analysis, or conversational exploration.
Use search when: You want raw highlight matches, exact quotes, or structured data for further processing.