DashAI

DashAI has a free trial that caps you at 20 ChatGPT interactions, and no license key is needed to start.

It is a Chrome extension and AI assistant that puts ChatGPT on every webpage you visit, so you can ask questions, summarize text or chat without switching tabs.

You bring your own OpenAI API key, which means usage costs are billed by OpenAI on top of whatever you pay for the extension.

Paid access is a one-time $17 payment.

That removes the usage cap and covers all features, unlimited license activations and all future updates, so there is no subscription to track.

A third option at $59 sells the full source code, which you can use however you like, though future updates are not included with it.

That one suits developers who want to modify or rebuild the extension rather than just run it.

DashAI is tagged for coding help, summarizing, transcription and voice work, but the clearest value is simple browser access to ChatGPT at a low flat price.