An AI writing assistant that works with your files
Draft, rewrite, summarize and translate with Marcus — in your tone and in 11 languages.
Try Marcus freeNo credit card required
What you can write with Marcus
Draft anything
Emails, blog posts, reports, cover letters and social posts — start from a short brief and refine in conversation.
Write from your files
Attach a PDF or document and ask Marcus to summarize it, extract key points or turn it into a new draft.
Translate documents
Translate an attached document into another language while keeping its structure. Marcus works in 11 languages.
Dictate or import audio
Speak your ideas or upload an audio file; Marcus transcribes it into your draft so you can edit it.
Frequently asked questions
Is the AI writing assistant free?
Yes. The free plan lets you write with Marcus every day without a credit card. Paid plans raise daily limits and unlock Marcus Da Vinci, our most capable model.
Does Marcus keep my drafts private?
Your conversations and files are private to your account. You can delete conversations at any time.
Which languages can I write in?
Marcus understands and writes in English, French, Spanish, Portuguese, German, Italian, Arabic, Chinese, Hindi, Japanese and Swahili.
Compare plans
Start free, upgrade when you need more messages or the Da Vinci model.
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