LangGraph vs LLM Gateway

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

	LangGraph Agents	LLM Gateway Agents
Tagline	Stateful, graph-based agent orchestration from LangChain.	One API, 200+ models, transparent pricing, and no vendor lock-in.
Category	Agents	Agents
Pricing	Freemium· Free open-source; LangGraph Platform paid	Freemium· Bring Your Own Keys: Free / Credits: 5% flat fee on top of provider rates / Self-hosted: Free (AGPLv3) / Enterprise: custom
Model	BYO (Claude / GPT / open)	Routes to GPT-4o, Claude 3.5 Sonnet, Gemini 1.5, Llama 3.1, Mistral, and 200+ others
Editorial score	8.8 / 10	—
Use cases	stateful agentshuman-in-loopproduction	Multi-provider LLM routingAutomatic failover between model vendorsPer-model cost and token analyticsA/B testing prompts across GPT and ClaudePrompt-injection and PII guardrailsSelf-hosted AI gateway for regulated dataUnified API key managementVendor-agnostic AI agent backends
Pros	Reliable, debuggable agent graphs Built-in persistence + HITL Production-grade Tight LangSmith integration	Single OpenAI-compatible endpoint fronts 40+ providers and 200+ models with a one-line base-URL change Automatic failover between providers keeps AI features up when a single vendor has an outage Real-time cost analytics broken down by model, provider, and route surface spend leaks early Bring-your-own-keys tier means you can adopt the routing and analytics without adding a middleman on billing AGPLv3 self-host option removes vendor lock-in and satisfies teams that need data to stay on their own infra Built-in guardrails (prompt-injection detection, PII filtering) applied uniformly across every provider Only 5% flat markup on the managed credit tier is transparent compared to opaque enterprise gateway pricing
Cons	Steeper learning curve than CrewAI Verbose to set up	Adds a network hop and dependency between your app and the LLM provider, which matters for tight latency budgets AGPLv3 self-host license is copyleft and can be a non-starter for closed-source SaaS teams unwilling to comply Managed credit tier means one more vendor holding a payment relationship and access to your prompt traffic Feature parity with each upstream provider's newest, most exotic parameters can lag behind the native SDKs Deep observability and prompt-engineering tooling is thinner than dedicated LLMOps platforms like Langfuse or Helicone
Website	www.langchain.com	llmgateway.io

Pick LangGraph if

✅ Reliable, debuggable agent graphs
✅ Built-in persistence + HITL
✅ Production-grade
✅ Tight LangSmith integration

Pick LLM Gateway if

✅ Single OpenAI-compatible endpoint fronts 40+ providers and 200+ models with a one-line base-URL change
✅ Automatic failover between providers keeps AI features up when a single vendor has an outage
✅ Real-time cost analytics broken down by model, provider, and route surface spend leaks early
✅ Bring-your-own-keys tier means you can adopt the routing and analytics without adding a middleman on billing

Compare a different pair →