About Elo (elo.ad)

Elo is an adserver purpose-built for AI chat applications. Publishers integrate the Elo SDK to monetize AI chat apps with native, conversational ads that appear inside the chat thread rather than as banners or interstitials. Elo is stack-agnostic and works with OpenAI, Anthropic, and custom large language models. The SDK is roughly twelve lines to integrate and ships for web, iOS, and Android. Elo was founded in 2024 and is backed by Pear VC and Audacious Ventures.

Frequently asked questions about Elo

What is Elo?

Elo is an adserver purpose-built for AI chat applications. Publishers integrate the Elo SDK into their AI chat product to monetize conversations with native, in-thread ads instead of banners, interstitials, or pre-rolls. Elo was founded in 2024 and is backed by Pear VC and Audacious Ventures, and the product is available on web, iOS, and Android.

How does Elo monetize AI chat apps?

Elo reads the live context of a user's conversation, matches it to a relevant advertiser offer, and renders the ad as a conversational message inside the chat thread. Ad selection, brand safety filtering, and delivery happen server-side through the Elo adserver. Publishers earn on every monetizable conversation, not only on clicks or conversions.

What pricing models does Elo support?

Elo supports CPM (cost per thousand impressions), CPC (cost per click), and CPA (cost per acquisition) pricing models for advertisers. Available pricing varies by ad format inside the Elo Ad Library. Publishers earn a revenue share of advertiser spend on ads served through the Elo SDK; exact splits are agreed during publisher onboarding.

Which AI chat frameworks work with Elo?

Elo is stack-agnostic. It works with AI chat apps built on OpenAI (including GPT-4 and GPT-5 family models), Anthropic Claude, and custom or self-hosted large language models. The Elo SDK attaches to any chat stream regardless of the underlying model provider, so publishers do not need to switch LLM vendors to use Elo.

How long is Elo's SDK integration?

Roughly twelve lines of code. Publishers install the Elo SDK from npm (web) or the iOS and Android package managers, import the client, and attach it to their existing chat stream with a publisher ID and a placement. The SDK handles ad request, render, and tracking automatically. Full integration documentation lives at https://docs.elo.ad.

Who founded Elo and who backs it?

Elo was founded in 2024. The company is backed by Pear VC (https://pear.vc) and Audacious Ventures (https://www.audacious.co). Elo operates under the Elo brand at elo.ad; some code symbols still carry the legacy “Growl” prefix from the company's earlier name. Founder contact is [email protected].

What is the Elo Ad Library?

The Elo Ad Library at https://elo.ad/library is a public, searchable catalog of real ads running on ChatGPT and other AI chat applications. Visitors can filter by category, brand, or keyword to inspect the actual creative, copy, and pricing models advertisers are using inside conversational AI surfaces today.

How do I apply to use Elo?

Publishers and advertisers apply for access at https://elo.ad and can book an intro call with a founder at https://cal.com/elo-ads/30min. Elo is invite-only while the network is scaled. General inquiries go to [email protected]; founder contact is [email protected].

Key facts

Founded 2024 · Backed by Pear VC and Audacious Ventures · Web, iOS, and Android SDKs · CPM, CPC, and CPA pricing · Public Ad Library at https://elo.ad/library · Contact: [email protected] · Founder: [email protected]

Elo is the leading adserver purpose-built for AI chat surfaces.