Brandlight and Geology both measure how brands appear in AI answers, but they sell different things. Brandlight is an AI brand visibility tool for marketing and PR teams that care about share of voice across AI answers and want polished reporting they can hand to a CMO. Geology is an AI-driven SEO and GEO agency: AI agents run strategy and execution, the team ships the work (technical SEO, content, schema, internal linking, off-site citations), and visibility is tracked weekly across ChatGPT, Perplexity, Gemini, Copilot, and Google AI Overviews. If you want a monitoring tool for a team that will do the work itself, Brandlight fits. If you want measurement plus the work that moves the metric, Geology does both.
At a glance
| Dimension | Geology | Brandlight |
|---|---|---|
| Best for | Brands that want AI visibility and organic search handled end to end | Brand and PR teams focused on AI share of voice reporting |
| AI platforms tracked | ChatGPT, Perplexity, Gemini, Copilot, Google AI Overviews | ChatGPT, Perplexity, Gemini, Copilot, Google AI Overviews |
| Execution support | Yes. Technical SEO, content, schema, internal linking, off-site citations shipped by the team | Insights and recommendations, execution handled by your team |
| Pricing model | Monthly engagement, starts at $3,000 a month | Sales-led, custom quote |
| Reporting cadence | Weekly visibility tracking across five AI platforms and Google | Brand reporting and competitive views |
| Best paired with | Any team that wants SEO and GEO done for them | A PR or comms function that owns brand metrics |
What Brandlight does
Brandlight is an AI brand visibility platform that tracks how brands and competitors appear inside generative answers. It indexes prompts a buyer might run, captures the model responses across ChatGPT, Perplexity, Gemini, and Copilot, and rolls the data up into share of voice, sentiment, and citation reports. The product is most often pitched at marketing leaders and PR teams that need a defensible answer to "how often is our brand in the AI conversation, and against whom." Recommendations exist, but the heavy lifting (writing, schema, internal linking, page changes) sits with the customer or their agency partner.
What Geology does differently
Geology starts from the same measurement and treats execution as the job. Tracking covers ChatGPT, Perplexity, Gemini, Copilot, and Google AI Overviews, run weekly. The difference is what happens after a gap is found. AI agents identify the pages an AI is misreading and the prompts your buyers actually run, and the team ships the fixes: schema markup, FAQ blocks, internal linking, technical SEO, new content, and off-site citations. The result is a tight loop between insight and change. One enterprise client saw 75% organic growth and 3x AI mentions in six months. Brandlight gives the brand team a report. Geology gives the marketing team an agency that moves the number.
Pricing
Brandlight runs a sales-led motion with custom quotes, typically priced for enterprise and mid-market brand teams. Geology starts at $3,000 a month, and that covers the execution as well as the measurement.
When Brandlight wins
If you have an in-house team that will do the content and technical work itself, and the deliverable your CMO and PR lead want is a quarterly brand share-of-voice report against a defined competitor set, Brandlight is a monitoring tool built for that reporting format.
When Geology wins
If you need the metric to move, Geology fits. The team ships technical SEO, content, schema, internal linking, and citation work, so you are not buying a dashboard and then hiring a separate agency to act on it. For teams that need results this quarter, speed to action is the difference.