Assistants tools.
7 tools: what each does, who makes it and what it costs. Pricing checked on each official site.
Assistants tools
Freemium
Assistants
Microsoft Copilot
by Microsoft
Microsoft's AI assistant for chat, image creation, voice and help with what's on your screen. Microsoft 365 plans add Copilot in Word, Excel, PowerPoint and Outlook.
Freemium
Assistants
Perplexity
by Perplexity AI
AI answer engine that searches the web and answers with inline citations. Lets you pick among leading AI models and offers deep research.
Assistants tools compared
A factual side-by-side, not a ranking: we list what each maker offers and charges. Prices change, so check the official page before you buy. Last checked September 25, 2026.
| Tool | Made by | What it does | Pricing |
|---|---|---|---|
| ChatGPT | OpenAI | General-purpose AI chat assistant for writing, research, coding and analysis, with image generation, voice chat, deep research, memory and projects. | Free; Go $8/month, Plus $20/month, Pro from $100/month |
| Claude | Anthropic | AI assistant for writing, analysis, coding and long documents, with free and paid plans plus Team and Enterprise plans for organizations. | Free; Pro $20/month ($17/month billed yearly); Max from $100/month |
| Grok | xAI (SpaceXAI) | AI assistant that searches the web and X in real time, with reasoning, voice chat, and image and video generation through Grok Imagine. | Free + paid SuperGrok plans |
| Meta AI | Meta | Meta's AI assistant in its own app, on meta.ai and across Facebook, Instagram and WhatsApp, for voice chat, images, camera questions and planning. | Free for everyday use; Meta One plans with extra AI features from $7.99/month |
| Microsoft Copilot | Microsoft | Microsoft's AI assistant for chat, image creation, voice and help with what's on your screen. Microsoft 365 plans add Copilot in Word, Excel, PowerPoint and Outlook. | Free; Microsoft 365 plans with Copilot from $9.99/month |
| Perplexity | Perplexity AI | AI answer engine that searches the web and answers with inline citations. Lets you pick among leading AI models and offers deep research. | Free; Pro $17/month and Max $167/month (billed yearly) |
| Gemini | Google's AI assistant. On Pixel 11 in the US, a test feature can now phone businesses for you. | Free + paid plans |