Braintrust vs Rool®

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Braintrust compared with Rool®
Detail	Braintrust	Rool®
What it does	The active observability platform for agents	Your private AI machine in the cloud
Stage	Growing	Not given
Founded	Not given	Not given
Based in	Not given	IE
Pricing model	Freemium	Freemium
Pricing	Starter plan free with $10 credits monthly, 1 GB processed data, 10k scores, 14-day retention. Pro plan $249/month with $100 credits, 5 GB processed data, 50k scores, 30-day retention. Enterprise with custom pricing. Overage charges at $4/GB for Starter and $3/GB for Pro on processed data.	Standard: Free forever. Plus: €9/month. Pro: €25/month. Team plan: No subscription, pay per machine and per AI use from prepaid balance in US dollars. Machine sizes: R0 $5/month, R1 $10/month, R2 $30/month. AI pricing per million tokens: Rool® 1 input $0.35, cached input $0.07, output $0.70. Rool® 1
Key features	Real-time trace inspection LLM scoring and evaluation Production monitoring dashboards Automated pattern detection Dataset versioning and management Prompt optimization with Loop agent Natural language trace investigation Custom annotation interfaces Gateway API for unified access Brainstore database for AI data	Persistent memory that builds knowledge graphs over time File storage and management with version control Collaboration with shared access and permissions Multiple Rool Machines per account Built-in connectors and custom MCP servers Full data export and API access Progressive Web App and mobile apps Hourly credit refills with daily limits Rool 1 and Rool 1.5 AI models EU infrastructure with self-hosted models
What makes it different	Built specifically for agents which fail differently than normal software Automatic pattern discovery from production data Framework agnostic with no vendor lock-in Enterprise security with SOC 2 Type II and HIPAA compliance Brainstore query engine for faster production debugging	Private machine isolated at VM level, not just by access rules Hosted entirely in the EU with self-hosted AI models Never trains AI models on your data Free forever plan with no credit card required
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	77 +1 (up) since last check	16 no change since last check
Trust Flow (Majestic)	28	6
Citation Flow (Majestic)	51	29
Referring domains (Majestic)	3530	56

5 details filled in for both companies.

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