AI assistants
General-purpose chatbots that write, explain, analyse files and answer questions.
- ChatGPT OpenAI
OpenAI’s assistant for writing, analysis, coding, image generation, voice conversations and web search.
Free plan + paid API - Claude Anthropic
Anthropic’s assistant for writing, analysis and coding, with projects, artifacts, skills and connectors to your tools.
Free plan + paid API - Gemini Google
Google’s assistant, tied into Search, Gmail, Docs and Android, with image and video generation.
Free plan + paid API - Microsoft Copilot Microsoft
Microsoft’s assistant in Windows, Edge and Microsoft 365, where it drafts in Word, Outlook and Excel.
Free plan + paid - Meta AI Meta
Meta’s free assistant in WhatsApp, Instagram, Messenger and on the web, built on Llama.
Free - Grok xAI
xAI’s assistant with live access to posts on X, plus image generation.
Free plan + paid API - Le Chat Mistral AI
Mistral’s European assistant, with web search, document analysis and image generation.
Free plan + paid API - DeepSeek DeepSeek
A free chat assistant on DeepSeek’s open-weight models, known for strong reasoning.
Free Open source API - Poe Quora
One app for many models, from OpenAI, Anthropic, Google and others, plus custom bots.
Free plan + paid API - Perplexity Perplexity AI
An answer engine that searches the web and replies with cited sources, plus its Comet browser.
Free plan + paid API
At a glance
| Tool | Maker | Pricing | Open source | API | Where |
|---|---|---|---|---|---|
| OpenAI | Free plan + paid | Web, Desktop, Mobile | |||
| Anthropic | Free plan + paid | Web, Desktop, Mobile | |||
| Free plan + paid | Web, Mobile | ||||
| Microsoft | Free plan + paid | Web, Desktop, Mobile | |||
| Meta | Free | Web, Mobile | |||
| xAI | Free plan + paid | Web, Mobile | |||
| Mistral AI | Free plan + paid | Web, Mobile | |||
| DeepSeek | Free | Web, Mobile, API | |||
| Quora | Free plan + paid | Web, Desktop, Mobile | |||
| Perplexity AI | Free plan + paid | Web, Desktop, Mobile, API |