Elmo vs Petra Labs
Elmo is an open-source, self-hostable alternative to Petra Labs, an AI visibility tracking tool. Both measure how AI answer engines describe your brand, but Elmo ships every line of code, runs on your own infrastructure, and is free to self-host — so your data stays yours and each metric is independently verifiable.
Limited market presence
Petra Labs appears to be a very early-stage product with limited adoption. Information on this page may be incomplete, and the tool's availability or feature set could change.
Elmo
Open-source AEO platform. Self-host for free, forever. Track AI visibility across ChatGPT, Claude, and Google AI Overviews with full transparency.
Petra Labs
Enterprise AEO with an embedded team and revenue attribution
About Petra Labs
Petra Labs pairs AEO software with an embedded team that runs strategy and execution for enterprise brands. It sources query demand from a proprietary panel, tracks brand presence, sentiment, and competitive threat broken out by customer persona and product line, and builds marketing mix and multi-touch attribution models linking AI search activity to pipeline and closed revenue. Founded in 2025 and raised a $5.2M seed round led by Work-Bench in July 2026.
Popularity grade: C
- $5.2M seed led by Work-Bench, with Afore and Pathlight
- Proprietary panel data for real user query demand
- Custom MMM and multi-touch attribution to pipeline and revenue
Feature comparison
| Feature | Elmo | Petra Labs |
|---|---|---|
| Core Tracking | ||
| Multi-LLM Tracking | ||
| AI Visibility Score | ||
| Citation Analytics | ||
| Competitor Benchmarking | ||
| Brand Mention Tracking | ||
| Platform | ||
| White-Label / Agency | ||
| Open Source | ||
| Content Generation | ||
| Advanced Analytics | ||
| Prompt Volume Estimates | ||
| Sentiment Analysis | ||
| AI Crawler Analytics | ||
| Geographic Tracking | ||
| Social Media Tracking | ||
| Shopping Tracking | ||
| Multi-Language | ||
| Actionable Insights | ||
| Action Recommendations | ||
| Content Gap Analysis | ||
| AI Site Audits | ||
| AI Keyword Research | ||
| Reporting & Integration | ||
| Email Alerts | ||
| Data Export / API | ||
| BI Connectors | ||
Key differences
Only in Elmo
- Citation Analytics
- White-Label / Agency
- Open Source
- Data Export / API
Both offer
- Multi-LLM Tracking
- AI Visibility Score
- Competitor Benchmarking
- Brand Mention Tracking
Only in Petra Labs
- Prompt Volume Estimates
- Sentiment Analysis
- Action Recommendations
Why choose Elmo over Petra Labs?
Open source and transparent
Every line of code is open. You can verify exactly how your visibility data is collected, calculated, and presented. No black boxes.
Self-host for free, forever
Run Elmo on your own infrastructure. The core platform is free and always will be, even when we release a cloud version of Elmo.
No vendor lock-in
Export everything, fork the code, or migrate at any time. You own all of your data and have the right to use it wherever you want.
Built to last
Bootstrapped and sustainable. No investors pushing towards dark patterns. We'll outlast the companies taking too much VC money.
/ FAQ
Frequently Asked Questions
- What is the difference between Elmo and Petra Labs?
- Elmo is an open-source, self-hostable AI visibility platform, while Petra Labs is a closed-source AI visibility tracking tool. Both track how AI answer engines describe your brand, but Elmo gives you the full source code and runs on your own infrastructure, so you can verify every metric and keep your data in-house.
- Is Elmo a free, open-source alternative to Petra Labs?
- Yes. Elmo is a free, open-source alternative to Petra Labs. You can self-host the full platform at no cost, read every line of code, and track your AI visibility across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews without per-seat or per-prompt fees.
- Is Petra Labs open source?
- No, Petra Labs is a closed-source, hosted product, so you cannot inspect how its metrics are calculated. Elmo is fully open source — you can audit the code, self-host it on your own infrastructure, and avoid vendor lock-in.
- Can I self-host Elmo instead of Petra Labs?
- Yes. Elmo is designed to be self-hosted — deploy it on your own infrastructure in minutes with the CLI. You keep full ownership of your data and prompts, with no per-seat pricing and no third-party dashboard holding your visibility history.
Ready to track your AI visibility?
Deploy Elmo in minutes and start monitoring how ChatGPT, Claude, and Google AI Overviews talk about your brand.