Google's AI assistant built into Search, Gmail, and Docs, with a standalone chat app for writing, research, and image generation. Generous free tier with a Google account.
FreemiumFree planAPIGeneral-purpose
Top match
If you're diving into research and long-form writing, Gemini is a great fit because it's built right into the tools you likely already use, like Google Search and Docs, making it easy to pull information and draft seamlessly. Its generous free tier means you can start exploring its capabilities without any upfront cost. You'll want to consider upgrading only if you need the most advanced model or want deeper, more automated integration across your entire Google Workspace.
Specialized research & long-form writing tools
A general assistant can do this, but these are built specifically for it — often with better results.
Free AI tool that summarizes text, PDFs, Word docs, PPTs, and videos using NLP, with a free tier of 30 credits and support for 50+ languages.
FreeOpen-source AI tool for screening and labeling literature.
Free
Also worth a look
Anthropic's AI assistant known for thoughtful long-form writing, coding, and analysis of large documents. Free tier available; paid plans unlock higher limits and the most capable models.
FreemiumFree planAPIGeneral-purposeAI answer engine that searches the web and responds with cited sources — a research-first alternative to traditional search. Free tier includes standard searches; Pro unlocks advanced models.
FreemiumFree planAPIGeneral-purpose
