At a glance
| Otterly.AI | Semrush | |
|---|---|---|
| Known for | Monitoring dashboard | Traditional SEO |
| Starting price | $29 a month (Lite, 15 prompts) | $99 a month for the AI Visibility Toolkit (25 prompts) |
| Trial | Free trial, no card needed | No free trial for the toolkit |
| AI engines | 4 engines: ChatGPT, Perplexity, Copilot, Google AI Overviews; Gemini, Claude and AI Mode as add-ons | ChatGPT and Google AI Mode for prompt tracking |
| API access | Standard plan and up | Not listed for the toolkit |
| Countries and languages | 65+ countries | 220+ countries for prompt tracking |
| Last checked | November 2026 | November 2026 |
From each vendor's public pricing and plan pages. Prices change, so confirm on their sites before you buy.
Who should choose Otterly.AI
Solo marketers and small teams on a tight budget who want a simple monitoring dashboard.
Worth knowing: The entry plan has a small prompt allowance, and some engines are add-ons.
Who should choose Semrush
Teams already using Semrush who want AI prompt tracking inside the same suite.
Worth knowing: Prompt tracking covers fewer AI engines than dedicated tools, and the toolkit has no free trial.
The key differences
- Price: Otterly.AI starts at $29 a month (Lite, 15 prompts), while Semrush starts at $99 a month for the AI Visibility Toolkit (25 prompts).
- Trial: Otterly.AI: free trial, no card needed. Semrush: no free trial for the toolkit.
- AI engines: Otterly.AI lists 4 engines: ChatGPT, Perplexity, Copilot, Google AI Overviews; Gemini, Claude and AI Mode as add-ons. Semrush lists chatGPT and Google AI Mode for prompt tracking.
- API: Otterly.AI: Standard plan and up. Semrush: Not listed for the toolkit.
- Markets: Otterly.AI: 65+ countries. Semrush: 220+ countries for prompt tracking.
How to decide
- 1Write down the AI engines your buyers actually use, and check each tool covers them on the plan you can afford.
- 2Count the prompts, brands and countries you need now and in a year, and price both tools at that size.
- 3Check whether you need an API or exports for your own reports.
- 4Run a trial with 20 to 50 of your own buyer questions, and compare what each tool shows with what you see when you ask the same questions yourself.
- 5Pick the one that shows you something you can act on fastest.
A third option to consider
If neither fits, Variask is another option. It starts at $99 a month (75 prompts), has a trial of 7 days for $1, tracks 9 engines: ChatGPT, ChatGPT app, Gemini, Claude, Perplexity, Grok, DeepSeek, Copilot, Google AI Overviews and AI Mode, and includes API access and multiple countries on every plan. Compare it on the same checklist above.