Skip to main content
Prism Discovery
All comparisons
Verified comparison

Prism Discovery vs Otterly.AI

Quick answer: Prism Discovery measures whether the content it published worked, 14 days after every change, and learns from the answer; Otterly.AI reports where you stand.

Start your trial: 14 days for £16.66See pricing
  • 14 days trial
  • £1.19 a day, £16.66 in total
  • Public pricing from £89 a month
  • No sales call

Otterly.AI claims checked against their own public pages on 21 September 2026. Prism Discovery claims verified on 25 September 2026.

Where does Otterly.AI stop, and how far does Prism Discovery go?

Each row below reads on its own: what Prism Discovery does, what that leaves you to do, and where Otterly.AI’s own public pages stop describing the same capability. The six rows that open the table are the same on every comparison on this site.

CapabilityPrism DiscoveryOtterly.AI
Measures per engine, or one blended numberPrism Discovery scores each engine separately with the Prism Visibility Index. Each score is weighted for brand mention, source authority and answer position, so a change can be traced to its cause. Impact: You see which engine moved and why.A separate score for each engine is not described on Otterly.AI’s public pages.
A finding becomes a tracked object with a lifecyclePrism Discovery records each finding as a typed Opportunity with a status. A resolved Opportunity is re-checked 14 days later and marked improved, flat or declined. Impact: A finding that did not work can be reopened rather than lost in last month’s report.A finding with a status and later verification is not described on Otterly.AI’s public pages.
Can it refuse to publish its own outputEvery reviewed Prism Discovery draft passes an expert-panel review before it can be approved. A draft that fails is blocked from approval and publishing, and every override is recorded. Impact: A failed draft cannot be published by accident.A check that blocks its own output from being published is not described on Otterly.AI’s public pages.
Does it measure whether what you published workedPrism Discovery measures AI visibility when content changes and again 14 days later. The difference is stored against that specific change. Impact: You know which publish moved visibility, not only that it moved.Tying a visibility change to a specific publish is not described on Otterly.AI’s public pages.
Does what it learns change what it generates nextOn Pro and Enterprise, Prism Discovery turns measured outcomes into how the next draft is written and scored. What moved this brand’s visibility shapes the next asset. Impact: Content improves on evidence rather than repeating a template.Measured outcomes feeding back into what it produces next are not described on Otterly.AI’s public pages.
Governed by construction, or by policy pagePrism Discovery publishes the AEO ontology it works to, machine-readable at a stable public address. Every term Prism Discovery measures against can be looked up and checked. Impact: Anyone can audit what is being optimised for, without an account.A machine-readable vocabulary for the terms it measures is not published on Otterly.AI’s public pages.
Generates contentPrism Discovery generates through a brand-voice filter and an AEO validator, then the expert panel. A draft is scored before anyone reads it, and a failed draft is stopped. Impact: You review scored drafts, not raw ones.Content generation is not described on Otterly.AI’s public pages at any tier.
Publishes to your sitePrism Discovery publishes approved assets to WordPress in one click and to Facebook, Instagram, LinkedIn and TikTok. A weekly autopilot carries content from finding to draft to publish, with a person approving each step. Impact: You publish from the tool that found the gap.Publishing to a CMS or to social channels is not described on Otterly.AI’s public pages.
Bring your own model keysPrism Discovery Enterprise workspaces run generation through their own OpenAI, Anthropic or Gemini keys. Model spend stays on your own account, under your own provider agreement. Impact: Enterprise buyers keep control of model cost and data terms.Bring-your-own model keys are not described on Otterly.AI’s public pages.
PricingPrism Discovery publishes its prices: Starter £89 a month, Pro £279 a month, Enterprise custom. The 14-day trial costs £16.66, annual billing gives 2 months free, and every plan below Enterprise can be bought today. Impact: You know the cost before speaking to anyone.Otterly.AI’s pricing page prices monitoring; generation, a gate and outcome measurement are not described at any tier.
Security and data protectionPrism Discovery is a UK company built to UK GDPR and the EU AI Act, with AI disclosure and audit records built in. EU AI Act Article 50 requires AI-generated content to be disclosed, and Prism Discovery records that by construction. Impact: UK and EU buyers get the disclosure record a regulator asks for.A company location or data-residency position is not described on Otterly.AI’s pricing page.

Measure what your next publish does

Every content change is measured against a 14-day visibility baseline, so you know which publish moved the number.

Start your trial: 14 days for £16.66See pricing

What does each Prism Discovery plan include?

Three plans, all with public prices, and each step adds projects, seats, prompts, engines and history. Pro switches on the learning loop that steers the next draft from measured results, and Enterprise removes the ceilings.

  • Starter£89 a month
    • 3 projects and 3 seats
    • 20 tracked prompts on 2 engines
    • 90-day history
    • 25 content packages a month
    • One WordPress site for publishing
    • Content generation with the AEO validator and expert-panel gate
    • Weekly automation
    See full pricing
  • Pro£279 a month
    • 10 projects and 10 seats
    • 50 tracked prompts on 4 engines
    • 180-day history
    • 100 content packages a month
    • One WordPress site for publishing
    • Outcome feedback loop: measured results steer the next draft
    • Experiments engine
    • PDF export, custom branding and a weekly digest
    See full pricing
  • EnterpriseCustom
    • Unlimited projects and seats
    • Unlimited tracked prompts on all 5 engines
    • 365-day history
    • Unlimited content packages a month
    • Unlimited WordPress sites for publishing
    • Bring your own OpenAI, Anthropic or Gemini keys
    • Google AI Overviews included
    See full pricing

When should you choose Prism Discovery over Otterly.AI?

Prism Discovery is built for the work after measurement: writing, gating, publishing, and measuring what the publish did 14 days later. Choose it over Otterly.AI when the left-hand list describes what you need; the right-hand list is who it is not for.

Choose Prism Discovery if you

  • You want to know whether what you published worked: Prism Discovery measures AI visibility 14 days after every content change and stores the difference.
  • You want the next draft to learn from the last one: on Pro and Enterprise, what moved your visibility shapes what is written next.
  • You want findings you can hold to account: every Opportunity is re-checked 14 days after it is resolved and marked improved, flat or declined.
  • You want a gate, not a score: a draft that fails the expert panel cannot be approved or published without a recorded override.
  • You want to run controlled tests: on Pro and Enterprise, the experiments engine scores variants statistically before you commit to one.
  • You want the vocabulary you are optimising against published and machine-readable: Prism Discovery maintains a public AEO ontology.
  • You need several projects and a team on one plan: Prism Discovery Starter covers 3 projects and 3 seats.
  • You need a UK supplier working to UK GDPR and the EU AI Act.

Prism Discovery may not be your fit if

  • You want to watch a handful of prompts and do nothing with the result yet.
  • You are a one-person brand that wants monitoring only.

Two profiles, on purpose. Prism Discovery is a workflow with a paid trial and public pricing, and it is not the right buy for someone who only wants a dashboard.

What is frequently asked about Prism Discovery and Otterly.AI?

The questions below are the ones buyers comparing Prism Discovery with Otterly.AI ask most. Each answer stands on its own, names its sources, and was checked on the dates shown at the top of this page.

What does Prism Discovery do that Otterly.AI does not describe?

Prism Discovery generates content through a brand-voice filter and an AEO validator, gates it with an expert-panel review, publishes approved assets to WordPress and social channels, and measures the visibility effect 14 days later. Content generation, a gate, publishing and outcome measurement are not described on Otterly.AI’s public pages.

Does Prism Discovery measure whether published content worked?

Yes. When content changes, Prism Discovery records AI visibility at that moment and measures it again 14 days later, storing the difference against that specific change, so the effect of one publish is a number on a record rather than a trend line read by eye. Attributing a visibility change to a specific publish is not described on Otterly.AI’s public pages.

Does what Prism Discovery learns change what it writes next?

Yes, on Pro and Enterprise. What moved this brand’s visibility shapes how the next draft is written and scored, so content improves on evidence rather than repeating a template week after week. Measured outcomes feeding back into generation are not described on Otterly.AI’s public pages.

Can Prism Discovery refuse to publish its own draft?

Yes. Every reviewed draft passes an expert-panel review before it can be approved, and a draft that fails is blocked from approval and publishing. An override is possible and every override is recorded, so passing a failed draft is a decision someone owns. A check that blocks its own output is not described on Otterly.AI’s public pages.

What does the Prism Discovery Starter plan include?

Starter is £89 a month for 3 projects, 3 seats, 20 tracked prompts on 2 engines and 90-day history, with content generation through the AEO validator, the expert-panel gate and one WordPress site for publishing, so measurement ends in a published page. Generation and publishing are not described on Otterly.AI’s public pages at any tier.

Related articles: which comparison should you read next?

The same six questions are applied on every page below, so the rows line up across products and the rubric page explains how each one was answered.

Where do these claims come from?

Every Prism Discovery claim above was verified against the product on 25 September 2026, and each row keeps a record of the evidence it was checked against. Otterly.AI claims come from the pages listed below, checked on 21 September 2026, and are cited as text rather than linked.

Something out of date? Otterly.AI may have changed since 21 September 2026. Tell us and we will correct it.

Start with a measured baseline

Prism Discovery measures where you stand on each engine, writes and gates the content, publishes it, and tells you 14 days later whether it worked. Otterly.AI reports where you stand.

Start your trial: 14 days for £16.66See pricing
  • 14 days trial
  • £1.19 a day, £16.66 in total
  • Public pricing from £89 a month
  • No sales call

Written by the Prism Discovery team. Otterly.AI claims checked against their own public pages on 21 September 2026. Prism Discovery claims verified on 25 September 2026.