Open-source alternatives to Gemini Deep Research
Looking to replace Gemini Deep Research with something free and open-source? These 6 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.
At a glance: how they compare
Click a column to sort — the best one depends on what matters to you.
| Alternative | Stars | Language | License | Last commit | In one line |
|---|---|---|---|---|---|
| AutoAgent | ★ 9.8k | Python | MIT | 11 months ago | Zero-code agent framework with a built-in deep research mode. |
| GPT Researcher | ★ 29.3k | Python | Apache-2.0 | 15 days ago | Autonomous agent that researches any topic and writes a cited report. |
| Tongyi DeepResearch | ★ 19.9k | Python | Apache-2.0 | 7 months ago | Open research agent that plans, searches and synthesises long reports. |
| deep-research | ★ 19.6k | TypeScript | MIT | 5 months ago | Minimal iterative deep-research loop you can run with any model. |
| Local Deep Research | ★ 9k | Python | MIT | 6 days ago | Deep research on your own machine, with local or cloud models. |
| DeepSearcher | ★ 8.3k | Python | Apache-2.0 | 10 months ago | Reason-and-search agent over your private data, in Python. |
Which one should you pick?
AutoAgent
Zero-code agent framework with a built-in deep research mode. Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
GPT Researcher
Autonomous agent that researches any topic and writes a cited report. Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Tongyi DeepResearch
Open research agent that plans, searches and synthesises long reports. Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
deep-research
Minimal iterative deep-research loop you can run with any model. Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Local Deep Research
Deep research on your own machine, with local or cloud models. Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
DeepSearcher
Reason-and-search agent over your private data, in Python. Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Switching from Gemini Deep Research without the drama
- Export your data from Gemini Deep Research first — most tools above can import standard formats.
- Run your top pick in parallel for a week or two before committing; self-hosted options can be tried locally in minutes.
- Migrate one team or one project at a time, keeping the old account read-only until everything checks out.
FAQ
What is the best open-source alternative to Gemini Deep Research?
The top open-source alternative is AutoAgent — Zero-code agent framework with a built-in deep research mode. The full ranked list is above.
Are these Gemini Deep Research alternatives free?
Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.
Can I self-host an alternative to Gemini Deep Research?
Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.
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