Pricing · three rungs
Included usage, transparent overage.
No per-seat fees. No forced contact-sales tier under five figures. The shape of the offer is the offer.
Free
Sandbox — for evaluating the API.
$0
per month · no card required
100 runs / month · 500 agents per run
Rate limit · 60 req/min
- POST /v1/simulations runs / month
- 100
- Agents per run
- 500
- Concurrent runs
- 1
- Result retention
- 7 days
- Webhooks
- 1 endpoint
- Workflows discovery
- Full read
- Data plane
- Sandbox database (synthetic + cached)
- Support
- Community (GitHub issues)
- SLA
- None
Developers evaluating the API, prototype builds, indie tinkerers. Enough budget to ship a meaningful demo.
Get a sandbox keyMost chosen
Studio
Production — for product teams shipping integrations.
$499
per month · $0.002 per agent-question over included
25,000 runs / month · 10,000 agents per run
Rate limit · 1,000 req/min
- POST /v1/simulations runs / month
- 25,000 included
- Agents per run
- 10,000
- Concurrent runs
- 50
- Result retention
- 90 days
- Webhooks
- 10 endpoints
- Workflows discovery
- Full read + private workflow request
- Data plane
- Production (Postgres + Redis + R2)
- Support
- Email, 24h business-day response
- SLA
- 99.9% (calculated monthly)
Product teams shipping production integrations. Includes the SOC 2 Type I letter (in progress) and DPA template.
Start Studio planEnterprise
Contracted — for regulated buyers and large research platforms.
Custom
from $30k / year · 12-month contract
Unlimited runs · 100,000 agents per run
Rate limit · 5,000 req/min default (up to 25,000 on contract)
- POST /v1/simulations runs / month
- Unlimited (contracted minimum)
- Agents per run
- 100,000 (higher available on contract)
- Concurrent runs
- 500
- Result retention
- Up to 1 year
- Webhooks
- Unlimited endpoints
- Workflows discovery
- Full + private workflow submission
- Data plane
- Production + dedicated Redis namespace + R2 bucket
- Support
- Dedicated Slack channel, 4h response window
- SLA
- 99.95% (calculated monthly, credits per contract)
- Compliance
- SOC 2 Type II (in progress), DPA, EU residency on request
Large research and audience-intelligence platforms, regulated buyers, and political or advocacy shops with contract requirements.
Talk to foundersHow overage works
Soft-warn first. Hard-cap second.
Studio plans get a 30-day soft-warn window — overage attaches a warning to the response envelope and an email goes to the billing contact. Day 31+ the agent-count cap becomes a 422 (per ADR-022). Run counts roll into the next monthly invoice.
Calling GET /v1/usage returns the live counter at any time. Webhooks fire on threshold crossings so dashboards don't need to poll.
Frequently asked
- Are there per-seat fees?
- No. The offer is metered by usage, not headcount.
- Can I move between tiers?
- Yes. Stripe Customer Portal handles upgrades and downgrades on the next billing cycle. Annual Studio commitments get a 12% discount.
- What happens if I exceed the rate limit?
- The API returns 429 with the canonical
Retry-Afterheader. Our SDKs honor it automatically with exponential backoff. - Do you offer a non-profit or academic discount?
- Yes — write to founders@simulix.com with a brief description of the project.