Free while in early access

Turn your everyday ChatGPT conversations into language progress.

FluentSide saves the corrections from the chats you already have, reveals the mistakes you keep making and recommends what to learn next, all in a private dashboard.

Start freeSee how it works

Requires a ChatGPT account that can use custom connectors. Coaching happens when ChatGPT calls FluentSide, which isn't guaranteed for every message.

In ChatGPT

Peux-tu m'aider à écrire un email ? Je suis allé au réunion hier et je veux remercier mon équipe.

Bien sûr ! Voici une proposition : « Bonjour à tous, merci pour votre excellent travail lors de la réunion d'hier… »

✍️ FluentSide

Je suis allé à la réunion hier.

“Réunion” is feminine, so “à + la” stays “à la” (not “au”).

Saved to your history under Articles

How it works

  1. 1

    Set your languages

    Choose the language you're improving (or let it be detected) and the language explanations should use.

  2. 2

    Connect ChatGPT

    Add FluentSide as a connector. When you write with mistakes, ChatGPT answers normally, then adds a short correction.

  3. 3

    Learn from your own mistakes

    Your dashboard groups recurring mistakes and suggests a few reviewed lessons each day.

A dashboard that doesn't exaggerate

FluentSide only sees the sentences ChatGPT sends it. So it shows what that evidence supports: which mistakes recur, how active you've been, and which lessons you completed. Your level stays the one you chose until an assessment suggests otherwise.

ChatGPT

A French learner after two weeks (illustration)

Example data

Top recurring mistake

Articles7 times in 30 days

Je suis allé au réunion hier.

Je suis allé à la réunion hier.

“Réunion” is feminine, so “à + la” stays “à la” (not “au”).

Recommended lesson

Articles in French

Lingolia · lingolia.com

ArticlesArticles came up 7 times in your last 30 days of corrections.

Recent activity

12 corrected sentences this week

Completed lessons

  • Prepositions in FrenchCompleted
  • Indicative Tenses in FrenchCompleted

Next useful action

Read “Articles in French”, then mark it complete. Tomorrow's plan adapts to what still recurs.

Your writing, your controls

  • Only sentences with mistakes are saved, never full conversations or ChatGPT's answers.
  • You choose retention: 30, 90 or 365 days, or until you delete.
  • Pause collection, disconnect ChatGPT or delete everything at any time.
  • Reports show counts from what was saved, with no invented accuracy scores or levels.

Start with the writing you already do.

Start free