BrandAxis tracks the AI models real customers use to research products and services.
UI models and API models
- UI models are measured by scraping the real AI search interfaces, as users see them in the browser: ChatGPT, Google AI Overviews, Perplexity, Gemini, Microsoft Copilot and Google AI Mode.
- API models are measured directly from the model’s API: a more approximate measure of what a real user might see. Today that’s Claude Sonnet. API models are priced separately because their API costs are much higher.
Models by plan
| Plan | Included | Extra UI models (per model / month) | Claude Sonnet (per month) |
|---|---|---|---|
| Free | ChatGPT | — | — |
| Lite | Any 3 of: ChatGPT, Google AI Overviews, Perplexity, Gemini, Microsoft Copilot, Google AI Mode | $7 each | $40 |
| Starter | Any 3 of: ChatGPT, Google AI Overviews, Perplexity, Gemini, Microsoft Copilot, Google AI Mode | $25 each | $100 |
| Pro | Any 3 of: ChatGPT, Google AI Overviews, Perplexity, Gemini, Microsoft Copilot, Google AI Mode | $59 each | $300 |
| Advanced | Any 3 of: ChatGPT, Google AI Overviews, Perplexity, Gemini, Microsoft Copilot, Google AI Mode | $115 each | $700 |
| Enterprise | All models, plus custom models | Custom | Custom |
Every paid tier includes any 3 models you choose at signup. Switch them any time, or add more — see model add-ons. Claude Sonnet is an add-on on every paid plan, at $2 per prompt per month; it’s never one of your 3. On Enterprise, custom models are available: book a meeting to discuss.
What “tracking” means
For each model we cover, BrandAxis sends every prompt in your workspace on a daily cadence and records the full response text. From the response we extract: mentions of your brand and competitors, their rank, the sentiment of how they’re described, and any sources the model cited.
How often we add models
We add new models when they reach meaningful real-world usage. If there’s a model you’d like us to track that isn’t on the list, email Felix.