Langbase vs LangChain

Langbase

Langbase bundles model routing, RAG memory, and multi-step workflows into one serverless platform, positioning itself as infrastructure teams don't have to assemble themselves from separate vector-database, routing, and orchestration tools. The free tier is real but modest (500 credits, no private pipes), so serious usage quickly pushes into the $100+/month range.

Pros

• +routes across 600+ LLMs through one unified API
• +built-in RAG memory with vector storage, no separate database needed
• +workflow layer adds retries, durability, and tracing to multi-step agents
• +clear company identity: Langbase, Inc., San Francisco

Cons

• −free tier has zero private pipes, limiting real project use
• −jump from Free to Individual is a full $100/month with no middle tier
• −full evaluation and observability tooling is described at a high level without deep public detail

LangChain

The default starting point for agent development: no other framework matches its integration catalog, documentation volume or hiring-market familiarity. The catch is churn and depth — major versions have repeatedly rewritten core APIs, and once you need observability or managed deployment you are steered toward the paid LangSmith platform.

Pros

• +Integrations for 1,000+ models, tools, vector stores and databases
• +MIT license with a large contributor community
• +LangGraph runtime adds persistence, rewind and human-in-the-loop control
• +Python and JavaScript keep parity for most features

Cons

• −History of breaking API changes between major versions
• −Layers of abstraction complicate debugging versus direct SDK calls
• −Production observability and deployment funnel into commercial LangSmith

Is Langbase cheaper than LangChain?

LangChain is free to use; Langbase starts at $100/mo.

Does Langbase or LangChain have a free tier?

Both: Langbase has a free tier, and LangChain is free to use.

Which has a public API, Langbase or LangChain?

Langbase ships a public API, as of our last verification. A public API for LangChain is not confirmed by us — check its developer docs before you plan an integration.