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207 tools · 25 stacks

AI tools are all over the place. This is the full landscape — 207 tools across 17 categories, mapped and connected. Ready to narrow it down? Build your stack →

Team size

Budget

Use case

Stage

Cluster

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
These tools competes with
Weights & Biases
vs
LangSmith

Choose Weights & Biases when…

  • •You're running ML experiments alongside LLM work
  • •Model training tracking and artifact management are needed
  • •You're a data scientist who uses Weights & Biases already

Choose LangSmith when…

  • •You're already in the LangChain ecosystem
  • •You want end-to-end tracing for LangChain apps
  • •Dataset management and evals are part of your workflow
Field
Weights & Biases
LangSmith
Category
Prompt & Eval
LLM Infrastructure
Type
SaaS
SaaS
Free Tier
✓ Yes
✓ Yes
Plans
Teams: $50/user/mo
Plus: $39/mo
Stars
—
—
Health
—
—
Trajectory
— not enough data
— not enough data

Weights & Biases

Industry-standard ML experiment tracking platform with LLM-specific tools for prompt evaluation, fine-tuning monitoring, and dataset versioning.

LangSmith

LangChain's observability platform. Trace every LLM call, run evals on datasets, and manage prompts in production.

Weights & Biases Website ↗
LangSmith Website ↗

Shared Connections (1)

Langfuse

Only Weights & Biases (1)

LangSmith

Only LangSmith (8)

CursorLangGraphLangChainPydanticAIHeliconeBraintrustWeights & BiasesAgentOps
See full comparison in Explore →