Pricing that grows as you do
Start free in 30 seconds. Add questions, competitors and brands as Sentinel finds more worth watching.
See how you rank against your competitors
Your buyers are asking ChatGPT, Claude and Gemini who to choose, right now. We will show you, free, where you appear and where a rival is quietly taking your spot.
- See your shortlist position across all four AI engines
- Spot the exact competitor stealing your mentions
- Get a prioritised action list in under a minute
- Keep watching your score every month, free, from the Vault
If an AI engine is recommending a rival instead of you, you want to know today, not next quarter.
Your visibility score in 30 seconds
We check all four engines and show you exactly where you rank, then track it over time.
No card, no sales call. We create your free account, or log you straight in if you already have one. Your email is only used to send your report and your login.
Track how AI recommends you.
Software, monthly or annual. See your score across four engines, watch it move, act on it yourself.
All four engines (ChatGPT, Claude, Gemini, Google AI Overviews) on every plan, including free.
Free
- 1 brand, 8 tracked questions, 2 competitors
- All 4 AI engines
- Baseline visibility score from day one
- Monthly refresh
- Vault category history included
Starter
- Everything in Free, plus:
- 40 tracked questions, 5 competitors
- All 4 AI engines
- Weekly refresh
- Prioritised fix list
- Movement alerts
Growth
- Everything in Starter, plus:
- 3 brands, 150 tracked questions, 10 competitors
- All 4 AI engines
- Daily refresh
- Full recommendations
- AI content briefs generated from the data
Scale
- Everything in Growth, plus:
- 10 brands, 500 tracked questions, 25 competitors
- All 4 AI engines
- Daily refresh
- AI-drafted content and ranked action plans
- API access and white-label reports
Common questions
What counts as a tracked question?
A tracked question is a prompt we run for you across all four AI engines on your refresh schedule, then read to see whether and how your brand shows up. More questions means broader coverage of the ways buyers actually ask.
Can I change plans later?
Yes, upgrade or downgrade any time. Most people start small, then move up as Sentinel surfaces more of their competitors and suggests new questions worth tracking. You only pay for the tier you are on, pro-rata.
Is the free plan actually free?
Yes. No card, no trial clock, free forever. The free tier keeps one brand, eight questions and two competitors live across all four engines, refreshed monthly, with your category history from the Vault. Upgrade only when you want more questions, faster refreshes or the reasons behind the numbers.
What is the difference between Starter and Growth?
Starter tells you where you rank on a single brand and alerts you when it moves. Growth adds the why and the what-next: three brands, 150 tracked questions, daily refresh, full recommendations and AI content briefs generated from the data, so you can act on it as well as watch it.
Or have us run it for you.
A full team on content, PR and web, moving your AI authority every week. Every Forge plan includes Sentinel Scale.
Ember
- 30 hours of delivery monthly
- Authority content programme
- Website rebuilt on the Fortitude Framework
- AI discoverability managed end to end
- Sentinel Scale included, worth £999/mo
Cancel any time. You pay only for what we have delivered, the rest is refunded to the day.
Furnace
- Everything in Ember, plus:
- 60 hours of delivery monthly
- Digital PR programme
- Original research and data assets
- Quarterly strategy reviews
- Sentinel Scale included, worth £999/mo
Cancel any time. You pay only for what we have delivered, the rest is refunded to the day.
Foundry
- Everything in Furnace, plus:
- 120+ hours of delivery monthly
- Multi-brand, multi-market programmes
- Dedicated strategy lead
- Custom reporting and integrations
- Sentinel Scale included, worth £999/mo
Cancel any time. You pay only for what we have delivered, the rest is refunded to the day.
Compare all plans side by side
| Free | Starter | Growth | Scale | Forge Ember | Forge Furnace | Forge Foundry | |
|---|---|---|---|---|---|---|---|
| Tracking | |||||||
| Brands | 1 | 1 | 3 | 10 | Unlimited | Unlimited | Unlimited |
| Tracked questions | 8 | 40 | 150 | 500 | 500+ | 1,000+ | Custom |
| Competitors | 2 | 5 | 10 | 25 | 25 | 50 | Custom |
| Refresh cadence | Monthly | Weekly | Daily | Daily | Daily | Daily | Real-time |
| All 4 AI engines | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Email alerts | — | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| API access | — | — | — | ✓ | ✓ | ✓ | ✓ |
| White-label reports | — | — | — | ✓ | ✓ | ✓ | ✓ |
| Done for you | |||||||
| Hours of delivery / mo | — | — | — | 2 | 30 | 60 | 120+ |
| Authority content | — | — | Briefs | Drafts | ✓ | ✓ | ✓ |
| Website on Fortitude Framework | — | — | — | — | ✓ | ✓ | ✓ |
| Digital PR programme | — | — | — | — | — | ✓ | ✓ |
| Original research | — | — | — | — | — | ✓ | ✓ |
| Dedicated strategy lead | — | — | — | — | — | — | ✓ |
| Commercial | |||||||
| Price | £0 | £99/mo | £399/mo | £999/mo | £3,950/mo | £6,950/mo | from £11,950/mo |
| Free trial | — | — | 14 days | — | — | — | — |
| Minimum term | None | None | None | None | 3 months | 3 months | Custom |
Paid Discovery, the blueprint before the build
Not sure whether to run it yourself or hand it to Forge? Discovery is a complete implementation blueprint for your brand. A full audit of your AI visibility, your website and your authority signals, your category mapped in the Vault, and a prioritised plan of what to fix, in what order, and what it is worth. Yours to keep and action with anyone. Go ahead with any Forge plan and the fee is credited back in full.
Are you an agency? See agency plans →
"We went from being invisible in ChatGPT to the default recommendation in our category. Sentinel showed us what to fix. Forge fixed it."Head of Marketing, B2B SaaS
The things people ask us.
Is there a free trial?
Yes. Growth comes with a 14-day free trial so you can use the full product, including recommendations and content briefs, before you pay. We take card details up front and you can cancel any time before the trial ends.
What is the Usage Promise?
If a calendar month goes by with no logins on a paid Sentinel plan, we email you and refund that month in full, automatically. You do not have to claim it. It sits on top of your right to cancel any time for a pro-rata refund. Read the Usage Promise.
What if we want to cancel?
One click in the dashboard. Billing stops immediately, unused time is refunded automatically to the day, and your Vault history stays even if you drop back to Free. No retention calls, no exit fees. Read the refund policy.
Can I move between Sentinel and Forge?
Yes, in either direction, any time. Your Vault history, prompts and competitor setup travel with you. Plenty of clients start on Sentinel Starter, hit the limits of what they can implement themselves, and step up through Discovery to Forge. Some step down to Sentinel after Forge has built their foundations. Both are fine.
What does "hours" mean on Forge plans?
The monthly pool is quoted as human-equivalent output: the time a competent in-house team would need to produce the same work. It is how you can compare our plans fairly against hiring. Every hour is itemised in your Sentinel dashboard.
Why is there a permanent free tier?
Because the free check answers one question and then your situation keeps changing. The free tier keeps one brand, eight questions and two competitors live across all four engines, so you can keep watching. When you want more questions, more rivals or daily tracking, the upgrade is there.
What happens to my history if I cancel?
You can drop to the free tier and keep your history live, or pause. The Vault keeps recording your category either way, because it records categories, not customers.
Do you lock me into a contract?
Sentinel is monthly, cancel any time. Forge plans run month to month after an initial three-month build period, which is the minimum honest window to show compounding results.