AI Tool Comparison

open-webui vs ChatGPT

An objective side-by-side comparison based on global rankings, AI scores, and monthly user data.

open-webui logo

open-webui

Design

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

AI Score71.2 / 100

#161

Global Rank

–

Monthly Users

Visit open-webuiFull Profile
VS
Higher Ranked
ChatGPT logo

ChatGPT

Writing & Chat

The world's most popular AI chatbot for writing, coding, research, and everyday tasks.

AI Score97.4 / 100

#3

Global Rank

400M+

Monthly Users

Visit ChatGPTFull Profile

Side-by-Side Comparison

open-webuiChatGPT
CategoryDesignWriting & Chat
Global Rank#161#3
AI Score71.2/10097.4/100
Monthly Users–400M+
PricingFreemiumFreemium
Websiteopenwebui.comchat.openai.com

Pros & Cons

open-webui

  • Genuinely free and open-source for typical use, with no license fee below the user threshold
  • Connects to any LLM backend, providing flexibility in model choice
  • Enterprise License adds real value (SSO, RBAC, audit logs) for organizations needing it
  • Crossing the 50-user branding threshold without an Enterprise License creates a real compliance issue
  • No official Cloud plan or per-token pricing — actual cost depends entirely on your own infrastructure and LLM backend choice
  • Enterprise License pricing requires direct contact rather than a published rate

ChatGPT

  • Largest user base and ecosystem of any AI assistant, with the most third-party integrations
  • Genuinely broad capability across writing, coding, research, and file analysis
  • Custom GPTs allow tailoring the assistant to specific repeated tasks
  • Frequent model updates keep it competitive on raw capability
  • Free tier has usage limits and access to a lower-tier model than paid plans
  • Can produce confident-sounding but incorrect information, especially without browsing enabled
  • Breadth can mean less depth than a tool purpose-built for one specific workflow
  • Data usage and training policies require attention for sensitive or regulated work