Gemini Prompt for Correcting a Text

Text correction is one of the tasks where Gemini particularly excels thanks to its fine understanding of French and its grammatical subtleties. Whether you are a writer, student, professional, or simply concerned about the quality of your writing, using Gemini to correct a text allows you to quickly identify spelling, grammar, conjugation, and syntax errors that often escape human proofreading. Unlike traditional spell-checkers, Gemini does not just flag errors: it understands the context of your sentences, detects stylistic weaknesses, and proposes natural rewording. The tool can handle long texts, respect your authorial intent, and adapt to the desired language register. To get the best results, it is essential to structure your prompt precisely by specifying the type of correction expected, the target language level, and the desired output format. Here is an optimized prompt to get the most out of Gemini for correcting your French texts.

The prompt

Gemini

You are a professional proofreader expert in the French language. Correct the following text by applying these rules:

Spelling: correct all spelling errors, including accents and hyphens.
Grammar: check agreements (subject-verb, adjective-noun, past participles), verb tenses, and tense consistency.
Syntax: restructure awkward or overly long sentences without changing their meaning.
Punctuation: correct punctuation (commas, semicolons, non-breaking spaces).
Typography: apply French typographic rules (French guillemets, accented capitals, spaces before double punctuation marks).

Response format:

First, the full corrected text.
Then, a table listing each correction with three columns: 'Original error', 'Correction', 'Error type'.

Text to correct:
[PASTE_YOUR_TEXT_HERE]

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Why it works

This prompt works effectively because it assigns an expert role to Gemini, activating a more rigorous and specialized response register. Breaking it down into five distinct categories (spelling, grammar, syntax, punctuation, typography) forces the model to perform a systematic analysis rather than a superficial correction. The structured output format with a summary table ensures traceability of changes and allows the user to understand and learn from their errors.

Expected result

You will get your text fully corrected, fluent, and respecting French language conventions. In addition, a detailed table will list each modification made with the corresponding error type, allowing you to identify recurring mistakes and progressively improve your writing.

Variants by level

FAQ

Can Gemini correct long texts without losing quality?

Gemini effectively handles texts of several thousand words thanks to its large context window. For very long documents (over 10,000 words), it is recommended to split the text into logical sections (chapters, parts) and submit them separately for optimal correction. Remember to specify in your prompt that the text is an excerpt from a longer document so that Gemini does not inappropriately modify the beginning or end.

How do I prevent Gemini from changing the style or tone of my text?

Add an explicit instruction in your prompt like 'Strictly preserve the author's tone and style' or 'Only rephrase grammatically incorrect sentences.' You can also specify the desired register (formal, standard, informal) so Gemini adjusts its corrections accordingly. If you notice unwanted stylistic changes, ask in a second prompt to correct only factual language errors without touching the wording.

Is Gemini reliable for correcting French typographic rules?

Gemini knows French typographic rules (guillemets « », non-breaking spaces before double punctuation, accented capitals) and applies them when explicitly requested. However, it is advisable to manually check non-breaking spaces and fine punctuation, as the rendering may vary depending on the display platform. For documents intended for print, combine Gemini's correction with a professional layout tool.

How to use this prompt

Copy the prompt with the button above.
Paste it into ChatGPT, Claude or your favorite AI assistant.
Replace the bracketed variables with your details, then refine the result.

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