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LangGraph vs Steer SDK
LangGraph provides stateful agent orchestration, whereas Steer adds deterministic validation to any agent.
LangGraphFramework for building stateful, controllable AI agents
Steer SDKStop Debugging. Start Teaching. The Active Reliability Layer for AI Agents. Which to pick
Pick LangGraph if you want…
- Customizable stateful agent orchestration
- Stateful agent workflows
Pick Steer SDK if you want…
- Deterministic guardrails for AI agents
Side by side
- What it is
- LangGraph:LangGraph is an open-source framework for building stateful, controllable AI agents with memory, streaming, and human-in-the-loop support.
- Steer SDK:Steer SDK is an open-source Python library that adds deterministic guardrails to AI agents to catch hallucinations and enforce reliability.
- Best for
- LangGraph:Customizable stateful agent orchestration
- Steer SDK:Deterministic guardrails for AI agents
- Who it’s for
- LangGraph:Developers building complex, production-grade AI agents
- Steer SDK:Developers building autonomous LLM agents who need runtime safety and observability.
- Pricing
- LangGraph:Open source
- Steer SDK:Open source
- Open source
- LangGraph:Yes, 42,570 GitHub stars
- Steer SDK:Yes, 134 GitHub stars
- Works with
- LangGraph:—
- Steer SDK:Python, PydanticAI
LangGraph features
- Human-in-the-loop controls. Add moderation and approval steps to keep agents on track.
- Expressive workflow primitives. Create single, multi-agent, or hierarchical flows with low-level building blocks.
- Persistent memory stores. Maintain conversation history and context across sessions.
- Token-by-token streaming. Stream agent reasoning and actions in real time for better UX.
- Model-agnostic runtime. Run agents with any LLM provider using high-level or fine-grained APIs.
- Open-source MIT license. Free to use and modify without licensing fees.
Steer SDK features
- Low-latency sidecar. Adds verification with less than 5 ms overhead by running in-process.
- Fail-safe design. Configurable behavior on internal errors to prioritize uptime.
- Zero data exfiltration. Local-first architecture ensures prompts never leave your network.
- Audit-ready logging. Every blocked response is logged with a deterministic reason code.
- Framework patching. Zero-touch reliability for frameworks like PydanticAI via a central policy file.
- Decorator sidecar. Manual control using @capture decorator to inject taught rules at runtime.
LangGraph vs Steer SDK FAQ
Is LangGraph or Steer SDK free?+
Yes, both are free and open source.
Is LangGraph or Steer SDK open source?+
Yes, both are open source: LangGraph (langchain-ai/langgraph on GitHub, MIT license) and Steer SDK (imtt-dev/steer on GitHub, MIT license).
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.