Best AI for writing and translation

Ranking

1. #1

   DeepL

   DeepL

   AI translator known for natural output, with full-document translation and DeepL Write to improve your text.

   Why it ranks here: The most natural Portuguese-English translation, with browser and Office extensions.

   View detailsOfficial site
2. #2

   Grammarly

   Grammarly

   Writing assistant that fixes grammar, tone and clarity in English across nearly every app, with AI rewriting.

   Why it ranks here: Best for confident English writing at work; Portuguese support is limited.

   View detailsOfficial site
3. #3

   Jasper

   Jasper

   AI content platform for marketing teams, with brand voice, campaigns and approval workflows.

   Why it ranks here: Built for marketing teams to keep brand voice at scale; pricey for individuals.

   View detailsOfficial site
4. #4

   QuillBot

   QuillBot (Learneo)

   Tool to paraphrase, summarize, check grammar and generate citations, popular with students, with Portuguese support.

   Why it ranks here: Cheap and practical for students with a good free plan; less advanced for long-form writing.

   View detailsOfficial site
5. #5

   Copy.ai

   CopyAI

   Sales-and-marketing (GTM) AI platform that automates content and prospecting workflows, with 2,000+ integrations and support for multiple AI models.

   Why it ranks here: Many integrations and a GTM-workflow approach, but the official page shows no free plan and higher tiers get expensive.

   View detailsOfficial site
6. #6

   Writesonic

   Writesonic

   AI writing and search-visibility platform that tracks your brand's mentions and citations across ChatGPT, Gemini, Perplexity and others, with content optimization.

   Why it ranks here: Starts free and tracks visibility across several AI platforms, but the entry paid plan is expensive (US$79/month) and Portuguese isn't explicitly named.

   View detailsOfficial site
7. #7

   Sudowrite

   Sudowrite

   AI writing tool built for fiction authors, with features like “Describe”, “Story Bible” and “Canvas” to plan plot and characters.

   Why it ranks here: Specialized in fiction and cheap to start (US$10/month), but it has no permanent free plan (only a trial) and works on credits.

   View detailsOfficial site