ChatGPT
General AI assistant for writing, brainstorming, research, and everyday tasks.
Freemium No credit card Check license
Fresh Last verified: Jun 15, 2026 2 official sources
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Research & Documents
Tools for notebooks, research workflows, citations, and document-heavy tasks.
Claude
Hosted AI assistant often used for writing, analysis, and document workflows.
Freemium No credit card Check license
Fresh Last verified: Jun 15, 2026 2 official sources
Gemini
Google's AI assistant for search-adjacent help, writing, and productivity tasks.
Freemium No credit card Check license
Fresh Last verified: Jun 15, 2026 2 official sources
Google Colab
Hosted notebooks for Python, data science, and machine learning experiments.
Freemium No credit card Check license
Fresh Last verified: Jun 15, 2026 2 official sources
Kaggle Notebooks
Hosted notebooks connected to Kaggle datasets and competitions.
Free No credit card API available Check license
Fresh Last verified: Jun 15, 2026 2 official sources
Perplexity
Answer engine focused on web research with visible source links.
Freemium Check license
Fresh Last verified: Jun 15, 2026 2 official sources