Promptfoo vs PromptLayer
On the evidence we track, PromptLayer leads this comparison with a composite score of 70/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for prompt management. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Promptfoo
A comprehensive LLM security testing solution that automatically scans for vulnerabilities such as prompt injections and jailbreaks through dynamic red teaming. Offers both open-source software for local testing and enterprise SaaS with team collaboration, continuous monitoring, and compliance dashboards.
PromptLayer
LeaderA platform combining prompt versioning, evaluation tools, and observability for LLM applications. It enables domain experts to test and refine prompts, track API usage and costs, and monitor application performance—all without changing application code.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Promptfoo
Free open-source Community tier; Enterprise and On-Premise plans with custom pricing
- CommunityFree
- All LLM evaluation features
- All model providers and integrations
- Red teaming (10k probes/month)
- Custom integration with your own app
- Run locally or self-host on your own infrastructure
- +2 more
- EnterpriseContact sales
- All Community features
- Custom red teaming limits
- Team sharing & collaboration
- Continuous monitoring
- Centralized security/compliance dashboard
- +6 more
- On-PremiseContact sales
- Complete data isolation
- On-premise deployment
PromptLayer
LeaderFree tier available. Pro starts at $49/month, Team at $500/month, both with usage-based billing ($0.002–$0.003 per transaction). Enterprise custom pricing.
- FreeFree
- 5 Users
- 2.5k/month Requests
- 1 Workspace
- 250/month Eval Cell Executions
- 10MB max per Dataset
- +1 more
- Pro$49/month plus $0.003/transaction
- Unlimited Playgrounds
- Unlimited Workspaces
- 150MB max per Dataset
- Webhooks Included
- Dedicated Support
- Team$500/month plus $0.002/transaction
- 25 Users
- 100k+/month Requests
- 7.5k+/month Eval Cell Executions
- 1GB max per Dataset
- Webhooks Included
- +2 more
- EnterpriseContact sales
- Custom limits on everything
- Role Based Access Controls
- Deployment Approvals
- HIPAA with BAA
- Flexible Hosting Options
- +2 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- OpenAI
- Anthropic
Promptfoo
- Google (Gemini)
- DeepSeek
- MCP (Model Context Protocol)
- CI/CD pipelines
- Webhooks
- Agent frameworks
- CI/CD platforms
- GitHub
- Python providers
PromptLayer
Leader- Pydantic AI
- Google GenAI
- AWS Bedrock
- OpenTelemetry
- Azure OpenAI
- Vertex AI
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.