Open-source Elicit alternatives

GPT Researcher is an open-source autonomous agent that performs deep research on a given task and writes up a report with citations. It can work from web sources and from local documents, and it works with any LLM provider, aiming for factual, unbiased output rather than a quick chatbot answer.

The project positions itself against several limits of manual and LLM-only research: manual work can take weeks, models trained on old data may hallucinate, token limits make long reports hard, and a narrow source set leads to shallow or wrong conclusions. Drawing on Plan-and-Solve and RAG ideas, it splits research into planning and parallelized agent work to increase speed and keep behavior stable. Customization options let you tailor domain-specific research agents, and topics note MCP server support.

GPT Researcher is written in Python and Apache-2.0 licensed, with documentation in several languages and a website at gptr.dev. You run it yourself with your own model API keys, and it suits analysts, students and developers who want automated, source-backed reports on a topic.

PapersGPT for Zotero is an AI and MCP plugin that turns a Zotero library of PDFs into a searchable knowledge base. It goes beyond chatting with a single file by supporting synthesis across many documents and global library search. The plugin is built in native C++ and released under the AGPL-3.0 license.

It can connect to a long list of model providers, including ChatGPT, Gemini, Claude, DeepSeek, Grok, OpenRouter, Kimi, GLM, SiliconFlow, and open-weight models, and the project stresses local processing and data sovereignty. It also exposes an MCP interface so other AI tools can work with the library, and the README presents indexing speed and low memory use as design goals for libraries with thousands of PDFs.

PapersGPT suits researchers, students, and academics who manage large collections of papers in Zotero and want to ask questions of them. The input does not give pricing details, so check the project website for plans or limits.