LIVE

Rheostat Summit 2026 — twelve talks on shipping agents safely. Oct 14, San Francisco.

Save your seat

Rheostat

Book a demo
Pricing

Pay for the dial,
not the seats.

Every plan includes unlimited seats and unlimited flags. You pay for evaluations above your plan — nothing else.

Free

$0/ month

For side projects and first experiments.

Start free
  • 1M evaluations / month
  • Unlimited flags and seats
  • Percentage rollouts
  • Community support

Team

Most teams

$240/ month, billed yearly

For product teams shipping every day.

Start a 14-day trial
  • 25M evaluations / month
  • Auto-rollback rules
  • Agent traces and judges
  • Audit log · 1 year
  • Email and chat support

Enterprise

Customannual contract

For regulated and multi-team orgs.

Talk to sales
  • Volume evaluations
  • SSO, SCIM and approval flows
  • Dedicated region and keys
  • 99.99% SLA
  • Named support engineer

Every feature,
side by side.

FeatureFreeTeamEnterprise
Releases
Evaluations / month1M25MVolume
Percentage rolloutsYesYesYes
Scheduled rolloutsNoYesYes
Auto-rollback rulesNoYesYes
Agents
Agent traces7 days90 daysCustom
Judges in library20240+240+
Approval gatesNoYesYes
Security
SSO / SCIMNoNoYes
Audit log retention30 days1 yearForever
Dedicated regionNoNoYes

Only pay extra for
what you actually use.

Overages are billed at cost, never at a penalty rate. Set a hard cap and we stop, not charge.

Evaluations
$0.008
per 1,000 above plan
Agent traces
$0.20
per 1,000 spans stored
Seats
$0
always, for everyone

Billing questions.

What counts as an evaluation?
One SDK call that returns a flag value. Cached reads on the client are free.
Can I change plans mid-month?
Yes. Upgrades are prorated to the day; downgrades apply at the next cycle.
Do you charge for failed requests?
No. Errors and timeouts are never billed.
Is there a startup discount?
Companies under two years old get Team at 50% for the first year.
What happens at my hard cap?
Flags keep serving their last value. New rollouts pause until you raise the cap.
Can I pay by invoice?
Enterprise plans can pay by invoice in USD, EUR or GBP.