Which AI Models And Providers Does Open WebUI Support?

Open WebUI connects to any OpenAI-compatible API endpoint, including Ollama for local models, OpenAI, Anthropic, and custom backends. Multiple providers can be configured and switched mid-conversation from a single unified interface.

How Does Open WebUI Handle Retrieval-Augmented Generation (RAG)?

Open WebUI uses a hybrid BM25 plus vector search pipeline with cross-encoder reranking across nine supported vector databases, including ChromaDB and PGVector. It supports five document extraction engines such as Tika, Docling, and Mistral OCR, plus full-context injection without chunking for precision use cases.

Can Open WebUI Be Deployed In An Air-Gapped Or On-Premise Environment?

Yes. Open WebUI is architecturally designed for on-premise, private cloud, and fully air-gapped deployments. All data remains within your own infrastructure unless you explicitly configure external model providers, making it suitable for regulated industries and classified environments.

What Extensibility Options Does Open WebUI Provide For Developers?

Developers can write custom Python tools and functions with a built-in code editor, build pipeline plugins for message filtering and routing, connect external services via OpenAPI or MCP servers, and import community-built extensions in one click from the open-webui.com community library.

Does Open WebUI Support Multi-User Access And Enterprise Identity Systems?

Open WebUI is multi-user from initial installation. It supports RBAC with granular per-model and per-workspace permissions, SSO via SAML and OIDC, LDAP and Active Directory integration, SCIM 2.0 for automated provisioning, and MFA layering over existing corporate credentials.

Listed · Reviewed Jun 2026 · 7-criteria rubric

AI Assistants

Open WebUI

Name: Open WebUI
Availability: InStock
Author: Open WebUI

Self-Hosted AI Platform That Puts You In Full Control

by Open WebUI · United States · Founded 2023

Visit Open WebUI →

Pricing

Free

What is Open WebUI?

Open WebUI is a self-hosted, extensible AI platform that lets individuals and organizations run AI entirely on their own terms — locally, in the cloud, or fully air-gapped. It connects to any model provider, including Ollama, OpenAI, Anthropic, and any OpenAI-compatible API, all from a single unified interface.

With 345 million downloads and a community of 435K+ members, it offers enterprise-grade access controls, Python-based extensibility, retrieval-augmented generation (RAG), native MCP support, scheduled automations, and a built-in model arena for A/B evaluation — making it the go-to open-source AI interface for privacy-first deployments.

Open WebUI — Self-Hosted AI Platform That Puts You In Full Control Whether you're evaluating Open WebUI for your team or comparing it to alternatives in the AI Assistants category, this in-depth review covers everything: features, pricing, real user reviews, pros and cons, integrations, and direct comparisons against competitors.

Open WebUI Demo Video

Key Features 8

Self-Hosted AI Platform Supporting Ollama, OpenAI, Anthropic, and More

Built-in RAG with 9 Vector Databases and 5 Content Extraction Engines

Python Function Calling Tools and Pipelines for Full AI Extensibility

Enterprise-Grade RBAC, SSO, LDAP, SCIM 2.0, and Audit Log Support

Hands-Free Voice and Video Calls with Multi-Provider Speech Integration

Multi-Model Side-by-Side Chat with Web Search Across 15+ Providers

Image Generation and Editing via DALL-E, Gemini, ComfyUI, and More

Deploy Anywhere via Docker, Kubernetes, or pip with Horizontal Scaling

Who Is Open WebUI For

1 DevOps & Platform Engineers

2 AI Researchers

3 Privacy-Conscious Enterprises

4 Open-Source Developers

5 University Labs & Academic Teams

6 IT Administrators Deploying Internal AI

Pros & Cons

Pros 4 benefits

142K GitHub Stars Credibility
Fully Offline Air-Gapped Support
Active Weekly Release Cadence
Massive Community Extension Library

Cons 3 limitations

Requires Self-Hosted Infrastructure
Complex Enterprise Configuration
No Official Managed Cloud Tier

Frequently Asked Questions

5 questions

Who is Open WebUI for?

Open WebUI is most useful for DevOps & Platform Engineers, AI Researchers, Privacy-Conscious Enterprises and Open-Source Developers.

Open WebUI pricing

Open WebUI is free to use. Free. For the current tier breakdown and any limits, see the pricing section above or check the vendor's pricing page directly — limits and prices change.

What's New

weekly

Knowledge Base Sync Tool & Folder Organization 0.9.6

Introduced oikb companion tool for syncing knowledge bases from local directories, GitHub repos, S3 buckets, and 40+ other sources. Added nested folder support inside knowledge bases with breadcrumb navigation and a new filesystem tool for AI models to browse knowledge contents using shell-style commands.

May 20

Native Desktop App & Scheduled Automations 0.9.0

Launched the official Open WebUI desktop app for Mac, Windows, and Linux with system-wide floating chat bar, push-to-talk, offline support, and zero telemetry. Also introduced scheduled chat automations for recurring AI tasks such as daily digests and periodic reports.

Apr 21

View all updates

User Base

345M+ downloads, 435K+ community members

Active Users

Security & Privacy

Self-determined by deploying organization (on-premise, private cloud, or air-gapped)

GDPR-Ready Architecture HIPAA-Compatible Deployment Model SOC 2 Deployment Guidance Available FedRAMP-Compatible Air-Gapped Support

Fully air-gapped and on-premise deployment support Role-based access control (RBAC) with per-model permissions SSO via SAML and OIDC with MFA support LDAP and Active Directory integration SCIM 2.0 automated user provisioning Audit-ready container-native logging (Splunk, Datadog, ELK compatible) +2 more

Collaboration & Teams

Team Workspaces Multi-User Access Role Permissions Shared Projects Real-time Comments Version History Activity Log

Learning & Support

Resources

Documentation Video Tutorials Templates

Community

Forum Discord

Support Channels

Email Priority

Localization

UI Languages

Content Languages

Multi-Language UI

Recognition & Trust

Open Source

Media: Featured in major developer and AI communities; 142K+ GitHub stars

All Features of Open WebUI