Patronus AI
Free tierSimulating the World's Intelligence
Free tier available·All audiences·API available
Key strengths
Digital World Models for AI agent simulationHallucination detection (Lynx model, beats GPT-4)LLM evaluation and testing infrastructureRL environments for agent trainingFinancial LLM benchmarking (FinanceBench)On-prem/VPC deployment for enterprise security
Free tier + paid plans
Self-hostable
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Documentation & Integration — Technical Details
API Patronus AI exposes an API for programmatic access to its evaluator models. Pricing is consumption-based:
- Small evaluator calls: $10 / 1,000 calls
- Large evaluator calls: $20 / 1,000 calls
- Evaluation explanations: $10 / 1,000 calls
Free Developer Tier Limits
- 2 projects
- 5 experiments per project
- 2-week data access window
- $10 in free API credits (no credit card required)
Enterprise Tier
- Unlimited projects, experiments, and API usage
- On-premises and VPC deployment options
- SSO support
- Custom data retention policies
- Pricing available on request
Integrations
- Databricks: Native integration for teams running ML pipelines on Databricks.
Self-Hosting On-prem and VPC deployment are supported under the Enterprise tier, making Patronus AI suitable for air-gapped or compliance-sensitive environments.