What's the best free AI chatbot?

ChatGPT, Claude, Gemini and Perplexity all offer a solid free tier; the choice depends on your main use.

ChatGPT or Claude: which to choose?

ChatGPT for versatility and ecosystem, Claude for writing finesse and long documents.

Which AI cites its sources?

Perplexity is built to answer with clickable, verifiable sources, ideal for research.

Comparatif

Best AI for an AI assistant in 2026 (comparison)

For a conversational AI assistant, ChatGPT stays the most versatile, Claude excels at long, nuanced text, Perplexity at sourced answers and Gemini for the Google ecosystem. Our pick: ChatGPT day-to-day, Claude for writing, Perplexity for research.

An AI assistant answers, writes, summarises, translates and reasons — the most universal tool of all. The best depends on your priority: versatility, writing quality, sourced answers or integration with your tools.

Here's our comparison of the best conversational assistants.

Our pick of the best AI for an AI assistant

1
ChatGPTAanrader
De veelzijdige AI-assistent die de golf op gang bracht.
Prijs: Free · Plus $20/mo · Pro $100/200Voir la fiche
2
ClaudeAanrader
De assistent die uitblinkt in lange teksten en redeneren.
Prijs: Free · $20/mo (Pro)Voir la fiche
3
GeminiAanbevolen
Google's AI-assistent, verweven met je hele ecosysteem.
Prijs: Free · AI Pro $19.99/mo · Ultra $99.99/199.99Voir la fiche
4
PerplexityAanrader
De antwoordmachine die altijd haar bronnen vermeldt.
Prijs: Free · $20/mo (Pro)Voir la fiche
5
Microsoft CopilotAanbevolen
De AI-assistent verweven in Microsoft 365 en het web.
Prijs: Free · Copilot Pro $20/mo · M365 Copilot $18-30/userVoir la fiche
6
Mistral (Le Chat)Aanbevolen
De Franse AI-assistent: snel en privacybewust.
Prijs: Free · from $14.99/moVoir la fiche
7
DeepSeekAanbevolen
Het goedkope topklasse-LLM: gratis chat en een zeer goedkope API.
Prijs: Free chat · usage-based API (from ~$0.14/M tokens)Voir la fiche
8
GrokAanbevolen
De gespreksassistent van xAI, ingebouwd in X.
Prijs: Free (limited) · SuperGrok $30/moVoir la fiche

Comparison table

Outil	Prijs	Niveau	Oordeel
ChatGPT	Free · Plus $20/mo · Pro $100/200	Beginner	Aanrader
Claude	Free · $20/mo (Pro)	Beginner	Aanrader
Gemini	Free · AI Pro $19.99/mo · Ultra $99.99/199.99	Beginner	Aanbevolen
Perplexity	Free · $20/mo (Pro)	Beginner	Aanrader
Microsoft Copilot	Free · Copilot Pro $20/mo · M365 Copilot $18-30/user	Beginner	Aanbevolen
Mistral (Le Chat)	Free · from $14.99/mo	Beginner	Aanbevolen
DeepSeek	Free chat · usage-based API (from ~$0.14/M tokens)	Pro	Aanbevolen
Grok	Free (limited) · SuperGrok $30/mo	Beginner	Aanbevolen

How to choose an AI for an AI assistant?

General versatility: ChatGPT covers the most needs.
Long, nuanced writing: Claude has a slight edge.
Sourced, verifiable answers: Perplexity cites its sources.
Office integration: Microsoft Copilot and Gemini within their suites.

Frequently asked questions

What's the best free AI chatbot?: ChatGPT, Claude, Gemini and Perplexity all offer a solid free tier; the choice depends on your main use.
ChatGPT or Claude: which to choose?: ChatGPT for versatility and ecosystem, Claude for writing finesse and long documents.
Which AI cites its sources?: Perplexity is built to answer with clickable, verifiable sources, ideal for research.

Autres guides

Best AI for writing in 2026 (comparison)Best AI for generating images in 2026 (comparison)Best AI for coding in 2026 (comparison)Best AI for creating video in 2026 (comparison)