FREE
Fits your team size
$0
per month
Always free
For trying Cairn on your own documents.
Start free- 1 seat
- 50 answers / day
- Connect 1 source
- Ridge and Pebble models
- 7-day history
GOAL: self-serve plan choice without surprises · AUDIENCE: team leads, admins · CTA per plan; Enterprise routes to sales. Seat slider does the math so visitors don’t have to.
PRICING
Simple plans. Predictable usage.
Pay per seat for the workspace. Pay per token for the API. Set a hard cap on either, and we stop before you overspend.
Just you? Pro covers everything a single person needs. Start a Pro trial →
At 150+ people, Enterprise usually costs less per seat and adds SAML, SCIM and an SLA. Talk to sales →
PRO
Fits your team size
$20
per seat / month, billed annually
$240 / month for 12 seats
For individuals who use AI every day.
Start 14-day trial- Unlimited answers, fair use
- All models incl. Summit
- 10 sources
- Artifacts and templates
- Unlimited history
TEAM
Fits your team size
$32
per seat / month, billed annually
$384 / month for 12 seats
For teams that share sources and agents.
Start 14-day trial- Everything in Pro
- Shared workspaces
- Agents with approvals
- SSO with Google and Microsoft
- Admin console and usage caps
ENTERPRISE
Fits your team size
Custom
volume pricing
Annual contract
For regulated industries and 150+ seats.
Book a demo- Everything in Team
- SAML SSO, SCIM
- EU-only or private deployment
- Customer-managed keys
- SLA and named success manager
- Prices in USD, excl. tax · illustrative
- No credit card for Free
- Cancel anytime · full data export
- Seat changes prorated daily
GOAL: honest token math · AUDIENCE: developers, finance · CTA: Get API key. The calculator shows the monthly figure in dollars, never tokens alone.
API · PAY PER TOKEN
Three models. One price sheet.
| Model | Input | Cached | Output | Context |
|---|---|---|---|---|
| Summit 2.1Most capable | $12 | $1.2 | $48 | 200k |
| Ridge 2.0Balanced | $3 | $0.3 | $12 | 200k |
| Pebble 1.4Fast, low cost | $0.25 | $0.03 | $1 | 64k |
USD per 1M tokens · illustrative, as of Sep 24, 2026 · 1M tokens ≈ 750k English words
COST ESTIMATORESTIMATE, NOT A QUOTE
Estimated monthly cost
$1,395
$675 input + $720 output · Ridge 2.0 · 30 days · no caching assumed
Get API key
Set a hard cap of $1,680 in the console.
Compare plans
| Feature | FREE | PRO | TEAM | ENTERPRISE |
|---|---|---|---|---|
| Workspace | ||||
| Seats | 1 | 1 | 3+ | Custom |
| Answers per day | 50 | Fair use | Fair use | Custom |
| Connected sources | 1 | 10 | Unlimited | Unlimited |
| Inline citations and provenance | ✓ | ✓ | ✓ | ✓ |
| Agents | ||||
| Agent runs per month | — | 100 | 2,000 | Custom |
| Human approvals | — | ✓ | ✓ | ✓ |
| Run logs with cost | — | ✓ | ✓ | ✓ |
| Security & admin | ||||
| No training on your data | ✓ | ✓ | ✓ | ✓ |
| Google / Microsoft SSO | ✓ | ✓ | ✓ | ✓ |
| SAML SSO and SCIM | — | — | — | ✓ |
| EU data residency | ✓ | ✓ | ✓ | ✓ |
| Customer-managed keys | — | — | — | ✓ |
| Audit log export | — | — | 30 days | Unlimited |
| Support | ||||
| Uptime SLA | — | — | 99.5% | 99.9% |
| Support | Community | Priority email | Named manager | |
Questions, answered plainly.
Can’t find yours? Talk to a person. We reply within one business day.
No. Training on customer data is off by default on every plan, including Free. You can opt in per workspace, and you can opt out again at any time.
We stop new requests and tell you why. Work in progress is saved. You choose whether to raise the cap, wait for the reset, or upgrade. We never charge overages you didn’t approve.
One million tokens is roughly 750,000 English words. The estimator above converts your expected usage into dollars, and the console shows spend per key, per day.
Yes, from settings, in two clicks. Monthly plans end at the next billing date; annual plans are refunded pro rata. You can export all data before or after cancelling.
Yes, 50% off Pro and Team for verified nonprofits and accredited schools.
In the EU by default (Frankfurt, with Stockholm as backup). Enterprise can choose a single region or a private deployment.
GOAL: route 150+ seats and regulated buyers to sales · CTA: Book a demo (primary here) + Trust Center · risk reversal: pilot with success criteria
ENTERPRISE · SOVEREIGN
Start with a pilot you can measure.
Four weeks, one team, success criteria agreed up front. If we miss them, you don’t pay.
- SSO (SAML, OIDC) and SCIM
- EU-only or private deployment
- Customer-managed keys
- Audit log export to your SIEM
- 99.9% uptime SLA with credits
- DPA, AI Act documentation
- Named success manager
- Invoice billing, annual terms