Builder
$29
10,000 evaluations/month
- Always-on Harmonic stabilization
- API access
- Playground
- Basic logs
Simple pricing
Start small. Stabilize continuously.
Harmonic is priced for adoption: lightweight enough for every meaningful model output, with a clean upgrade path as usage grows.
Growth
$49
25,000 evaluations/month
- Everything in Builder
- Webhook support
- Longer retention
- Priority rate limits
Scale
$99
100,000 evaluations/month
- Everything in Growth
- Production deployment support
- Advanced usage visibility
- Higher throughput
Need more? Additional evaluations are billed at $1 per 1,000 evaluations. No hard shutdowns unless abuse or failed billing occurs.
Enterprise, Admissibility Core, Execution Gateway, and Veil Runtime deployments are handled separately for higher-consequence environments.