Open WebUI & Claude
Last updated: August 2026
Claude by Anthropic has earned a loyal following for writing that feels considered, reasoning that holds up over long context, and a product experience that gives work somewhere to land. We count ourselves among those fans, and we use Claude daily. The model research, long-context engineering, safety work, product restraint, and developer tooling all come through in the product. Artifacts made outputs easier to inspect and refine, Claude Code brought Claude into real development workflows, and MCP gave the ecosystem a shared language for connecting models to tools and data.
The people at Anthropic have pushed the whole ecosystem forward. Claude made careful analysis, editable outputs, agentic coding, and tool/data connections feel like natural parts of working with AI, and it shows how good a focused model-and-product experience can be. Open WebUI fits around that when teams want to use Claude alongside their own models, knowledge, tools, and workflows.
Commercial · Free tier available
What Claude Does Well
- Writing and reasoning with thoughtful, nuanced responses and careful analysis
- Extended thinking that shows step-by-step reasoning for complex problems in real time
- Large context windows up to 200k tokens for working with large documents and codebases
- Artifacts for interactive outputs (code, documents, visualizations) alongside the conversation
- Claude Code for agentic coding directly in your terminal
- Computer use that lets Claude interact with desktop applications and web interfaces
- MCP (Model Context Protocol) which Anthropic created to standardize how AI tools connect to data sources
- Safety-first design through Anthropic's constitutional AI approach
- Strong at code with excellent code generation, review, and debugging
- Projects for organizing conversations with persistent context and instructions
What Open WebUI Does Well
- Full agentic platform with builtin tools the model calls itself, MCP servers, sub-agents, timers and automations, driving Claude and every other model the same way
- Customise practically everything, from per-model prompts, tools, knowledge and parameters to filters, pipes, actions and event functions that change behaviour anywhere in the pipeline, plus theming, banners and per-group permissions
- Any model, one interface so you can use Claude alongside GPT-5.6, Gemini, and local models
- Self-hosted so the platform itself runs on your infrastructure
- Knowledge & RAG for persistent knowledge bases with advanced retrieval
- Team platform with Channels, Notes, Automations, RBAC, SSO/OIDC/LDAP, and SCIM 2.0
- Open Terminal providing a full sandboxed computing environment
- Free community edition for unlimited users on your own infrastructure
At a Glance
| Open WebUI | Claude | |
|---|---|---|
| Models | Any model from any provider | Anthropic's Claude model family |
| Extended thinking | Supported for models that offer it (including Claude via API) | Native extended thinking |
| Context window | Depends on the model you connect | Up to 200k tokens |
| Knowledge & RAG | 13 vector DBs, 8 extraction engines, hybrid search | Projects with persistent context |
| Code execution | Python in-browser + Open Terminal | Artifacts with interactive code |
| Data | Self-hosted, your infrastructure | Cloud-hosted by Anthropic |
| Pricing | Free community edition; Enterprise plans available | Free tier, Pro, Team, and Enterprise plans |
When to Use Each
Choose Claude if you want the best writing and reasoning experience available, especially for long-context work, code review, or nuanced analysis. The extended thinking mode is particularly strong for complex problems. Claude Code and computer use push the boundaries of what AI can do autonomously.
Choose Open WebUI if you want to use Claude alongside other models in one interface, build persistent knowledge bases, or need team collaboration features. Open WebUI also supports Claude's extended thinking via the API.
Use both. Connect Open WebUI to the Anthropic API and use Claude for deep analysis alongside GPT-5.6 for other tasks and local models for privacy-sensitive work. Use claude.ai directly when you want Artifacts, Projects, or computer use.
Use Claude Through Open WebUI
Claude models are available through Open WebUI via the Anthropic API. Many Open WebUI users run Claude as their primary model, getting Claude's reasoning alongside Open WebUI's knowledge bases, tools, and team features.
How to connect:
- Get an API key from console.anthropic.com
- In Open WebUI, go to Admin → Settings → Connections
- Add a new connection with your Anthropic API key and the base URL
https://api.anthropic.com/v1 - Claude models will appear in your model selector
You can use Claude for complex analysis and writing while routing simpler tasks to local models via Ollama, all in the same interface.
Claude raised the bar for thoughtful writing, long-context work, agentic coding, and tool standards. Open WebUI lets teams use Claude where they already manage their models, knowledge, tools, and workflows.
Ready to try Open WebUI? Get started →
Frequently Asked Questions
Can I self-host Claude? Not Claude itself, but you can use Claude models through Open WebUI via the Anthropic API. Open WebUI itself runs on your infrastructure, though API calls still go to Anthropic.
Can I use Claude in Open WebUI? Yes. Add your Anthropic API key in Settings and Claude models appear in the model selector.
Can I use Claude and ChatGPT together? Yes, Open WebUI supports connecting to multiple providers at once.
Does Open WebUI support Claude's extended thinking? Yes. Extended thinking is supported for models that offer it, including Claude via the Anthropic API.
Related: Open WebUI & ChatGPT · Open WebUI & Gemini · Open WebUI & Ollama