AIchitect
StacksGraphBuilderCompareGenome
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
Vellum
vs
PromptFoo

Choose Vellum when…

  • •You want a full LLM product development platform
  • •Prompt management, testing, and deployment in one place
  • •You're iterating on prompts in a team workflow

Choose PromptFoo when…

  • •You want CLI-first, config-driven LLM evals
  • •Running eval suites in CI/CD pipelines is a goal
  • •You need red-teaming and safety testing built in
Field
Vellum
PromptFoo
Category
Prompt & Eval
Prompt & Eval
Type
SaaS
OSS
Free Tier
✓ Yes
✓ Yes
Plans
Starter: Paid
—
Stars
—
⭐ 5,000
Health
—
●80 — Active
Trajectory
— not enough data
— not enough data
Synced
—
8 days ago

Vellum

End-to-end platform for prompt engineering teams. Version prompts, run A/B tests, evaluate quality, and deploy to production with a visual interface.

PromptFoo

Test and compare prompts across models. Built-in red-teaming, regression testing, and side-by-side model comparison.

Vellum Website ↗
PromptFoo Website ↗GitHub ↗

Only Vellum (2)

PromptFooHumanloop

Only PromptFoo (6)

LangfuseDeepEvalOpenAI APIVellumAgentaGalileo
See full comparison in Explore →