We have upgraded Read Frog's Built-in AI to GPT-6 Luna. You do not need to change a provider, add an API key, or update your settings. The upgrade is available wherever your plan includes Built-in AI.
What changes when you translate?
The new model gives Read Frog more room to follow the context of a passage, preserve its tone, and keep terms consistent across longer text. That matters when a page moves between short UI labels, technical explanations, and natural conversation. Translation quality still depends on the source and language pair, so you can always compare the result with another provider in Translation Hub.
There is a practical benefit too: Ultra's weekly Built-in AI allowance can now translate about twice as much content as before for comparable requests. The weekly allowance is still shared across Built-in AI features. Actual usage varies with page length, language pair, and the tokens needed to produce the result.
What is included with Pro and Ultra?
Updated October 27, 2026: Pro now includes Built-in AI for every feature, not only Custom AI Actions. The table below shows the plans as they are today.
| Pro | Ultra | |
|---|---|---|
| Built-in AI for Custom AI Actions | Included | Included |
| Built-in AI for page and selection translation | Included | Included |
| Built-in AI across other supported features | Included | Included |
| Built-in AI allowance, reset weekly | About 7M tokens a month | About 28M tokens a month (4× Pro) |
| Advanced Built-in AI | — | Included |
| AI video transcription subtitles | 300 minutes per month | 1,000 minutes per month |
Pro runs every Built-in AI feature on GPT-6 Luna: page and selection translation, Custom AI Actions, subtitle translation and the rest share one weekly allowance that resets every seven days from when your plan started, and unused tokens do not carry over; over a month it comes to about 7 million tokens. Pro also keeps its note, flashcard, and subtitle benefits.
Ultra includes everything in Pro, with four times the allowance (about 28 million tokens a month) and Advanced Built-in AI. Under comparable usage, GPT-6 Luna lets that allowance cover about 2× as much translated content as before.
Token figures are estimates from typical page translation. The exact amount varies with how much of each request is text sent and how much is text returned.
If you use your own AI provider and API key, your provider settings are unchanged. This announcement applies to Read Frog's Built-in AI.