Mirascope vs Promptfoo
No leader: the top candidate Promptfoo has only 0.22 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
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.
Mirascope
A library that provides a single, decorator-based interface for calling any frontier LLM, supporting streaming, asynchronous operations, and multi-turn conversations.
Promptfoo
Automated testing and security evaluation framework for AI applications, with support for comparing multiple model providers and identifying potential vulnerabilities through red teaming and assertion-based validation.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Mirascope
Open-source framework available free; optional managed Router service uses credit-based usage pricing
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
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.
Mirascope
- Langfuse
Promptfoo
- OpenAI
- Anthropic
- Google (Gemini)
- DeepSeek
- MCP (Model Context Protocol)
- CI/CD pipelines
- Webhooks
- Agent frameworks
- CI/CD platforms
- GitHub
- Python providers
- Azure
- Bedrock
- Ollama
- Gemini
Mirascope or Promptfoo: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.