Duel-Agents vs litellm

litellm is much bigger: 62.3k stars against 734. Over the days we have tracked them Duel-Agents moved -15.9% and litellm +12.8%, so litellm is growing faster right now.

litellm leads on noise control and privacy and model freedom. Duel-Agents 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

An IDE-native routing layer that runs prompts across multiple models and picks the cheapest answer that still wins.

Stars
734
Tracked growth
-15.9%
Maturity
●●●●●
Last commit
121d ago
Language
TypeScript
License
MIT
Cost to run
Requires a Duel API key (dashboard subscription)

A lightweight, production-ready self-hosted AI gateway that unifies 100+ LLM providers into a single OpenAI-compatible API with virtual keys, spend tracking, guardrails, and load balancing.

Stars
62.3k
Tracked growth
+12.8%
Maturity
●●●●●
Last commit
9m ago
Language
Python
License
NOASSERTION
Cost to run
Self-hosted — your API keys (pay providers)
0%+13%90 tracked days
2aronS/Duel-AgentsBerriAI/litellm

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.

AxisDuel-Agentslitellm
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/file only
●●●●●
No repo context
Noise control
How it keeps output volume down — severity thresholds, deduplication, incremental runs over new commits only.
●●●●●
No noise controls
●●●●●
Basic guardrails
Customization
How far it bends to your team: custom rules, prompts, style guides, per-path config.
●●●●●
Env/config options
●●●●●
Configurable
Privacy
Whether your code stays on your own infrastructure: fully local, self-hostable, or cloud API only.
●●●●●
Third-party cloud
●●●●●
Self-hostable
Model freedom
Whether you can point it at any provider, or it is wired to one.
●●●●●
Single provider
●●●●●
Bring-your-own-key
Setup ease
What it takes to get a first useful run out of it.
●●●●●
API key + install
●●●●●
Config + API key

Which one to pick

Pick Duel-Agents if…

Cost-optimized — pick Duel Agents when you want an IDE-integrated proxy that routes and compares model answers to choose the cheapest winning response.

Runs in cli, ide, coding-agent-plugin. Works with other-fixed.

Pick litellm if…

Unified multi-provider support — use one OpenAI-compatible API to call 100+ LLMs with a self-hosted gateway, virtual keys, and cost tracking.

  • Noise control: Basic guardrails (3/5 against 1/5)
  • Privacy: Self-hostable (4/5 against 1/5)
  • Model freedom: Bring-your-own-key (5/5 against 1/5)
Runs in cli, web-app. Works with byok.

What people want from each one

Questions people ask

Is Duel-Agents better than litellm?

litellm leads on noise control and privacy and model freedom. Duel-Agents does not take any axis by a clear margin. Duel-Agents is worth picking when cost-optimized — pick Duel Agents when you want an IDE-integrated proxy that routes and compares model answers to choose the cheapest winning response.

Which of Duel-Agents and litellm keeps my code private?

Duel-Agents: Third-party cloud (1/5). litellm: Self-hostable (4/5).

What does each one cost to run?

Duel-Agents: Requires a Duel API key (dashboard subscription). litellm: Self-hosted — your API keys (pay providers).

Full profiles: 2aronS/Duel-Agents and BerriAI/litellm. Everything else in Gateways & routing.