deer-flow vs ECC

ECC is much bigger: 284.4k stars against 84.2k. Over the days we have tracked them deer-flow moved +8.4% and ECC +22.4%, so ECC is growing faster right now.

ECC leads on context depth and noise control. deer-flow does not take any axis by a clear margin.

Stars and commit dates come from our own daily tracking. The six axes are read off each project's documentation by our review pipeline, so they describe what a project says about itself, not what we measured in its code.

Where they stand today

Orchestrates long-horizon, multi-agent research workflows with sandboxed file-system sandboxes, subagents, memory and replay tools for reproducible deep-research tasks.

Stars
84.2k
Tracked growth
+8.4%
Maturity
●●●●●
Last commit
2h ago
Language
Python
License
MIT
Cost to run
Your API key or self-hosted

A harness-native, cross-harness agent operating system that bundles skills, session/state memory, verification loops, and AgentShield for production multi-harness workflows.

Stars
284.4k
Tracked growth
+22.4%
Maturity
●●●●●
Last commit
7h ago
Language
JavaScript
License
MIT
Cost to run
Free OSS; optional Pro GitHub App ($19/seat/mo) + your model/API costs
0%+22%90 tracked days
bytedance/deer-flowaffaan-m/ECC

Six axes, head to head

Each axis runs 0 to 5. The label under a score is what that project's own docs claim, not a category average.

Axisdeer-flowECC
Context depth
How much of your codebase it sees before it answers: the open diff, the diff plus related files, or the whole repository.
●●●●●
Diff + related
●●●●●
Whole-repo analysis
Noise control
How it keeps output volume down — severity thresholds, deduplication, incremental runs over new commits only.
●●●●●
Basic filters
●●●●●
Severity gating
Customization
How far it bends to your team: custom rules, prompts, style guides, per-path config.
●●●●●
Extensive config
●●●●●
Extensive configs
Privacy
Whether your code stays on your own infrastructure: fully local, self-hostable, or cloud API only.
●●●●●
Self-hostable
●●●●●
Fully local
Model freedom
Whether you can point it at any provider, or it is wired to one.
●●●●●
BYOK & local
●●●●●
Bring-your-own-key
Setup ease
What it takes to get a first useful run out of it.
●●●●●
Interactive setup
●●●●●
Config + API key

Which one to pick

Pick deer-flow if…

Extensible tooling — pick DeerFlow when you need a self-hostable, highly configurable super-agent harness that runs multi-step, sandboxed research and coding workflows with local model support.

Runs in cli, web-app, coding-agent-plugin. Works with byok, openai, anthropic, gemini, local-ollama, other-fixed.

Pick ECC if…

Production-ready — pick ECC when you need a self-hostable, operator-grade agent harness with built-in skills, memory, verification, and a GitHub App for PR audits.

  • Context depth: Whole-repo analysis (5/5 against 3/5)
  • Noise control: Severity gating (5/5 against 3/5)
Runs in pr-bot, cli, ide, coding-agent-plugin. Works with byok, openai, anthropic, gemini, local-ollama.

What people want from each one

Questions people ask

Is deer-flow better than ECC?

ECC leads on context depth and noise control. deer-flow does not take any axis by a clear margin. deer-flow is worth picking when extensible tooling — pick DeerFlow when you need a self-hostable, highly configurable super-agent harness that runs multi-step, sandboxed research and coding workflows with local model support.

Which of deer-flow and ECC keeps my code private?

deer-flow: Self-hostable (4/5). ECC: Fully local (5/5).

What does each one cost to run?

deer-flow: Your API key or self-hosted. ECC: Free OSS; optional Pro GitHub App ($19/seat/mo) + your model/API costs.

Full profiles: bytedance/deer-flow and affaan-m/ECC. Everything else in Multi-agent orchestration.