Comparison
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Open WebUI | not listed | yes | Chatbots & AI assistants |
 Grok | 30 USD/mo | yes | Chatbots & AI assistants |
 DeepSeek | 0.02 USD | ? | Chatbots & AI assistants |
 Google AI | not listed | ? | Chatbots & AI assistants |
 AnythingLLM | 50 USD/mo | yes | Chatbots & AI assistants |
 Sesame | not listed | ? | Chatbots & AI assistants |
 Monica | 8,3 USD/mo | yes | Chatbots & AI assistants |
 ChatGPT | 34,99 PLN/mo | yes | Chatbots & AI assistants |
 Microsoft Copilot | 27.73 EUR/mo | trial | Chatbots & AI assistants |
Each alternative in short
1. Grok
Frontier AI models from SpaceXAI for chat, code, voice, images and video, available via apps, X and a developer API.
Yes, there is a free plan. Free plan gives access to Grok within generous limits, including voice mode, connectors and real-time web and X search, with limited Grok Bot and Expert features.
2. DeepSeek
Chinese AI lab offering open-source large language models (DeepSeek-V4, R1) via a chat app, web interface and developer API.
The vendor does not state this clearly on the homepage or pricing page.
3. Google AI
Google's hub for AI products, developer tools, research and responsibility efforts, aimed at general users, businesses and developers.
The vendor does not state this clearly on the homepage or pricing page.
4. AnythingLLM
Free, private AI assistant that runs on your own computer, for chatting with documents, research and workflows without cloud API keys.
Yes, there is a free plan. Desktop app is free to download and use locally, with no accounts or API keys required.
5. Sesame
Voice AI agents on iOS and Android that help with everyday tasks, let you talk through ideas, and follow your curiosity.
The vendor does not state this clearly on the homepage or pricing page.
6. Monica
All-in-one AI assistant giving access to several leading AI models for chat, writing, translation, research and image creation.
Yes, there is a free plan. Free to add to Chrome as a browser extension, according to the page.
7. ChatGPT
AI assistant for chatting, research, image creation, file analysis, and coding, for individuals and teams.
Yes, there is a free plan. Free plan includes unlimited text chats subject to abuse guardrails, with limited messages with uploads, limited image creation, limited voice chats, limited deep research, limited memory and context, limited Codex access, and limited ChatGPT Work access on desktop.
8. Microsoft Copilot
AI chat assistant from Microsoft for creating, brainstorming, learning and solving everyday problems, with a Microsoft 365 Copilot tier for work.
There is a free trial. Free trial offered for the Microsoft 365 Business Premium with Copilot plan (terms linked on the page). The free tier of the basic chat is not described in the provided text.
FAQ
What is the best alternative to Open WebUI?
The most popular option in the same category is Grok. See the comparison table above.