tools
Freeplay
Freeplay helps AI teams manage prompts, datasets, evaluations, experiments, and production observability.
Freeplay is a platform for developing and operating AI applications. Teams can monitor production logs, manage prompts and models, build datasets, run evaluations, compare experiments, and track usage, cost, and latency.
It is used by engineers, data scientists, product managers, designers, and subject-matter experts. A free plan is available with usage limits; Growth starts at $500/month, while Enterprise pricing is custom. Freeplay also offers SDKs and API access for application integration.
Features
- Monitor AI applications with search, analytics, cost, latency, and evaluation metrics
- Version prompts, models, and hyperparameters together
- Experiment with prompts and models in a collaborative playground
- Run model-graded, code-based, and human evaluations
- Create and compare automated batch tests
- Curate datasets from production logs or upload custom data
- Use AI insights, prompt optimization, and assisted evaluation generation
- Integrate through Python, Node.js, Java, and Kotlin SDKs
Use cases
- Monitor production AI logs and investigate cost, latency, and quality issues
- Compare prompt or model versions against saved datasets
- Create evaluation datasets from real user interactions
- Run automated evaluations on prompts and agent workflows
- Review and annotate AI outputs with human evaluation workflows
- Track LLM usage and spending across providers and environments
Pros
Cons
Pricing
- Starting price
- Free
- Pricing checked
- 2026-09-19
Free
$0/month
- Unlimited users
- Unlimited auto-evals
- 10,000 completions logged per month
- 1 project
- 10 test runs per month
- $5 Freeplay credits
Growth
Starts at $500/month*
- Unlimited users
- Unlimited auto-evals
- 100,000 completions logged per month
- 5 projects
- 50 test runs per month
- Custom options available
Enterprise
Custom Pricing
- 500,000 completions per month
- Self-hosting
- SSO / SAML
- SLAs
- Bring your own models
- Dedicated Forward Deployed AI Engineer
- Custom trainings & premium support services