Four plans, compared by what you actually get
Every onmsg plan includes the widget, the flow builder, the grounded AI agent and the shared inbox. What changes between tiers is how much of each resource you have.
We list resource limits here rather than dollar amounts. Prices, currencies, billing intervals, taxes and plan eligibility are confirmed at checkout, that way this page can't quietly go out of date on you.
Free
Try onmsg on one site and see how grounded answers behave with your own content.
- 250,000 platform AI tokens a month
- 1 agents per site
- 3 knowledge sources
- 30 days configured retention
Starter
For a small team that wants chat running properly on a live website.
- 500,000 platform AI tokens a month
- 3 agents per site
- 25 knowledge sources
- 90 days configured retention
Pro
For teams handling steady enquiry volume who need more AI and knowledge capacity.
- 5,000,000 platform AI tokens a month
- 10 agents per site
- 200 knowledge sources
- 365 days configured retention
Business
For agencies and multi-brand operators running chat across several sites.
- 20,000,000 platform AI tokens a month
- Unlimited agents per site
- Unlimited knowledge sources
- Unlimited configured retention
What each plan includes
| Resource | Free | Starter | Pro | Business |
|---|---|---|---|---|
| Platform AI tokens / month | 250,000 | 500,000 | 5,000,000 | 20,000,000 |
| Agents per site | 1 | 3 | 10 | Unlimited |
| Monthly sessions | 100 | Unlimited | Unlimited | Unlimited |
| Saved bot flows | 1 | 5 | Unlimited | Unlimited |
| Knowledge sources | 3 | 25 | 200 | Unlimited |
| Knowledge pages | 30 | 500 | 5,000 | Unlimited |
| Storage | 100 MB | 1 GB | 5 GB | 25 GB |
| Configured retention | 30 days | 90 days | 365 days | Unlimited |
| Concurrent active sessions | 10 | 50 | 200 | 1,000 |
Read this before you pick a plan
- A knowledge "page" is calculated from 3,000 characters of extracted text, not necessarily one original PDF page.
- AI tokens are not the same as messages or conversations.
- "Unlimited" in one row does not remove the other resource limits on that plan.
- Prices, currencies, billing intervals, taxes and plan eligibility are confirmed at checkout.
The product is the same. The room is different
You don't get the flow builder or the grounding controls by upgrading. They're there on the free plan too.
The chat widget
Colours, fonts, placement, launcher, teaser, business hours, after-hours behaviour and custom CSS. Installed with one script snippet.
The flow builder
All 11 step types, branching by page, availability and saved answers, and forms with required fields and validation.
Grounding controls
Strict, Balanced and Open modes, adjustable retrieval strictness, a configurable refusal message and handoff after a set number of refusals.
The shared inbox
Assignment, resolve and reopen, search, per-conversation drafts, saved replies and append-only private notes.
Bringing your own AI provider key
You can connect your own provider key instead of using the included platform AI. That avoids the platform AI-token allowance check, but it does not remove the other limits on your plan, such as agents per site, storage, knowledge sources or retention. Your chosen provider may bill you separately for usage.
Read how provider choice worksPricing questions
What the tiers change, and what stays the same.
Can we use our own AI provider key?
Yes. You can use the included platform AI or bring your own provider key, with provider and model selection, key testing, a grounding probe and usage reporting. Bringing your own key avoids the platform AI-token allowance but not other plan limits, and the provider may bill you separately.
What plans does onmsg offer?
There are four tiers, Free, Starter, Pro and Business, that differ by resources such as platform AI tokens, agents per site, knowledge sources and pages, storage, retention and concurrent sessions. Confirm current prices, currencies and billing intervals before purchase.
Is there a free plan?
Yes, onmsg has a Free tier you can start with, and no credit card is required to begin. Higher tiers add more AI tokens, agents, knowledge capacity, storage, retention and concurrent sessions.
Start on the free plan
No credit card required. Upgrade only when a resource limit gets in your way.
- Free plan available
- Installs with a script snippet
- Your content, your controls