Deer Flow
ByteDance's open-source long-horizon agent harness that researches, codes and creates using sandboxes, memory and sub-agents.
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About Deer Flow
Deer Flow is listed in our research category and is aimed at builders. ByteDance's open-source long-horizon agent harness that researches, codes and creates using sandboxes, memory and sub-agents. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-16.
What is Deer Flow?
DeerFlow (Deep Exploration and Efficient Research Flow) is ByteDance's open-source long-horizon agent harness.
Our listing notes it researches, codes and creates using sandboxes, memory and sub-agents; version 2 reached #1 on GitHub Trending in February 2026.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: deerflow.tech.
Who is Deer Flow for?
Developers building deep-research and long-running agents.
Deer Flow at a glance
- Open source: Yes (MIT License)
- GitHub: bytedance/deer-flow · 84,235 stars (as of Oct 21, 2026)
Key features
- Long-horizon agent harness
- Sandboxes and memory
- Sub-agents
Deer Flow FAQ
What is Deer Flow?
DeerFlow (Deep Exploration and Efficient Research Flow) is ByteDance's open-source long-horizon agent harness.
Who is Deer Flow for?
Developers building deep-research and long-running agents.
Is Deer Flow free?
Deer Flow's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Deer Flow open source?
Yes. Deer Flow is released under the MIT License, according to its GitHub repository.
What are alternatives to Deer Flow?
Similar tools include Vane, GPT Researcher, DB-GPT, AskYourDatabase, Kuration AI and WrenAI.
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