ChatGPT
OpenAI · Free version · limited checksThe best-known AI chat for questions, writing, file analysis and image generation.
Use right away · Alternatives
Alternatives to Perplexity
Perplexity by Perplexity AI belongs to the area “Use right away” on OROBO. Here are 8 alternatives from the same area, first 8 with the same goals. Every entry is checked automatically every day (origin, code patterns, licence, maintenance, reachability); OROBO does not check whether software fits your purpose.
8 alternatives at a glance
Claude
Anthropic · Free version · limited checksAI assistant for deep work: reads long documents, writes clearly, builds code and files.
Gemini
Google · Free version · limited checksGoogle's AI assistant, tied into Gmail, Docs and Search, with image and video generation.
Gemini Notebook (formerly NotebookLM)
Google · Free version · limited checksFormerly NotebookLM: add your sources and get summaries, audio overviews and grounded answers.
Grok
SpaceXSI (formerly xAI) · Free version · limited checksAI assistant with live access to the web and X, plus image and video creation via Imagine.
Microsoft Copilot
Microsoft · Free version · limited checksMicrosoft's AI companion across Windows, Edge and Office; free to use, more with Microsoft 365.
DeepSeek
DeepSeek · Free · limited checksFree chat app on DeepSeek's open-weight models, strong at reasoning, math and code.
Open WebUI
Open WebUI · Open Source · Trust 97Self-hosted chat interface for local and cloud models — under your control.
Keep comparing
All software in “Use right away” with filters by price, offline use and difficulty.