Tools
Braintrust vs Freeplay
Braintrust or Freeplay? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.
In inglese
In short
- Only Braintrust states: Choice of models, Self-hosted, API, Official SDKs, Traces and evaluates
Braintrust
Braintrust helps teams trace AI applications, evaluate outputs, find production issues, and improve agents.
Plans
Starter
- $0 / month
- + $4/GB
- + $2.50/1k
- $10 model credits/month included
- 1 GB processed data/month included
- 10K scores/month included
- 14-day retention
- Unlimited users, projects, datasets, playgrounds, and experiments
Pro
- $249 / month
- + $3/GB
- + $1.50/1k
- + $0.50/GB/mo
- $100 model credits/month included
- 5 GB processed data/month included
- 50K scores/month included
- 30-day retention
- Custom charts, environments, priority support, and RBAC
- Unlimited users, projects, datasets, playgrounds, and experiments
Enterprise
Price on request
- Custom data retention and export
- RBAC and premium support
- On-prem or hosted deployment for high-volume or privacy-sensitive data
Prices checked 2026-09-26 on the maker’s page.
Capabilities
- Choice of models — “compare prompts and models side-by-side” source
- Self-hosted — “Deploy Brainstore data plane on your own infrastructure” source
- API — “You get a unified API across OpenAI, Anthropic, Google, AWS, and other providers, with automatic caching and observability on every request.” source
- Official SDKs — “Native SDKs SDKs for Python, TypeScript, Go, Ruby, C#, and more.” source
- Traces and evaluates — “Full visibility into every agent interaction.” source
Security
- SOC 2 Type II — “SOC 2 Type II - May 5 - Aug 5, 2025” source
- SOC 2 — “SOC 2 Type II - May 5 - Aug 5, 2025” source
- GDPR — “Data Processing Agreement (DPA) - Enterprise” source
- HIPAA — “One-page white paper on Braintrust and HIPAA compliance.” source
Latest updates
- September 2026 (v0.21.0+)
Braintrust-hosted deployments map OpenInference traces to structured data; the bt CLI supports local JavaScript span plugins.
- August 2026
Monitoring views became dashboards; permissions now control access to organization AI providers; coding-agent tracing runs through the bt CLI.
- July 2026
Experiment comparisons support pairwise scoring; datasets can store references to full traces and show them in a Trace viewer.
Freeplay
Freeplay helps AI teams manage prompts, datasets, evaluations, experiments, and production observability.
Plans
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
Prices checked 2026-09-25 on the maker’s page.
Latest updates
- Freeplay MCP Server (Experimental)
Integrate Freeplay capabilities into MCP-compatible tools and workflows with an experimental Model Context Protocol server.
- 🏚️ Project Home Page
Added a Home page to every project with key metrics, insights about the project, and bookmark-able metrics.
- 🤖 Models
Claude Opus 4.6 added to the prompt playground; Claude Haiku 4 models support image and file uploads via Anthropic API and AWS Bedrock.