1. ChatGPT
A general-purpose AI assistant for writing, learning, brainstorming and everyday problem solving. Feature limits vary by plan.
2. Gemini
Useful for general questions, writing, planning and Google ecosystem workflows. Regional availability can differ.
3. Claude
Offers a free access tier for conversational work, writing and coding, subject to current limits.
4. Perplexity
Useful for research discovery and source finding. Treat linked sources as starting points and verify them.
5. NotebookLM
Useful for asking questions about a collection of documents and building study-oriented summaries from supplied material.
6. Canva
Useful for quick designs, presentations and selected AI-assisted creative tasks.
7. Microsoft Copilot
Useful for general AI assistance and Microsoft productivity workflows.
8. Hugging Face
A large ecosystem for discovering open models, demos and developer tools. Individual demos have their own limits.
9. Google AI Studio
A practical environment for experimenting with Google's generative AI models and prototypes. Current quotas should be checked on the platform.
10. Open-weight AI models
Open model ecosystems can be free when run locally or through hosted demos. Local use requires suitable hardware or cloud compute.
Free does not mean unlimited
Most free AI services use message, speed, storage, model or feature limits. Check current terms before building a workflow around one service.