Research the web
in 3D
Watch your AI agent traverse the web in real time. Spindle visualizes every page visit as a growing 3D graph while delivering research results through a chat interface.
Built for AI researchers
Everything you need to research smarter with an AI-powered web agent.
3D web traversal
Watch your research unfold as a real-time 3D graph. Every page the agent visits becomes a node you can explore.
Multi-model support
Switch between GPT-4o, Claude, o3, and more. Use the best model for each research task.
Real-time search
Integrated Tavily web search with live result cards. The agent finds and synthesizes information as you watch.
Chat history
All your research sessions are saved. Switch between conversations and pick up where you left off.
Page browsing
The agent reads full page content and shows extracted text in browsing cards you can review inline.
Bring your own key
Use your own API keys for unlimited free access, or let us handle it with pay-as-you-go.
See Spindle in action
An AI research agent that shows its work — browse the web, search, and synthesize in real time.
3D web traversal
Watch the graph grow in real time as your AI agent browses pages. Every link followed becomes a new node in an interactive 3D visualization.
Multi-model support
Choose from all frontier models — GPT-4o, Claude Opus, o3, and more. Switch models mid-conversation to find the best fit for your research.
Real-time search
Integrated Tavily web search surfaces results as live tool cards. Watch the agent find, read, and synthesize information from across the web.
Chat history
Every research session is automatically saved. Browse your history, switch between conversations, and pick up where you left off.
Page browsing
The agent reads full pages and displays extracted content in collapsible browsing cards. Review sources without leaving the chat.
Simple, pay-as-you-go pricing
Start free with 5 messages. Then pay only for what you use — no subscriptions, no commitments. Or bring your own API key for unlimited use at no charge.
5 free messages to try it out
- 5 AI messages included
- All models available
- 3D web traversal
- Bring your own key (unlimited)
Per-token pricing with no minimum
- Unlimited messages
- All models available
- Monthly invoicing via Stripe
- Usage dashboard in settings
| Model | Input / 1M tokens | Output / 1M tokens |
|---|---|---|
| Claude Opus 4.6 | $21.00 | $105.00 |
| Claude Sonnet 4.6 | $4.20 | $21.00 |
| Claude Haiku 4.5 | $1.12 | $5.60 |
| GPT-4.1 | $2.80 | $14.00 |
| GPT-4.1 mini | $0.56 | $2.24 |
| GPT-4o | $3.50 | $14.00 |
| GPT-4o mini | $0.21 | $0.84 |
| o3 | $14.00 | $56.00 |
| o4-mini | $1.54 | $6.16 |