These tools integrates with
OpenAI APIvsPromptFoo
GPT-4o, o1, and embeddings from OpenAI versus CLI/library for prompt testing and red-teaming
Compare interactively in Explore →Choose OpenAI API when…
- •You need the broadest ecosystem and most integrations
- •GPT-4 or o-series reasoning models are required
- •Assistants API, fine-tuning, or batch API are needed
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
Side-by-side comparison
Field
OpenAI API
PromptFoo
Category
LLM Infrastructure
Prompt & Eval
Type
Commercial
Open Source
Free Tier
✗ No
✓ Yes
Pricing Plans
API: Per token
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GitHub Stars
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⭐ 5,000
OpenAI API
API access to GPT-4o, o1, and other OpenAI models including embeddings and image generation. The most widely used LLM API in production.
Shared Connections2 tools both integrate with
Only OpenAI API (19)
CrewAIAutoGenLangChainLlamaIndexMastraPydanticAIsmolagentsAgnoLiteLLMPortKey
Only PromptFoo (3)
OpenAI APIVellumAgenta
Explore the full AI landscape
See how OpenAI API and PromptFoo fit into the bigger picture — 124 tools, 310 relationships, all mapped.