Help Your Users Write Better Using Generative AI
Leverage LLMs and offer the latest and greatest in AI writing assistance.
Powering writing experiences for leading companies
Everything you need to provide a 360º co-writing solution
Short-form text generation
Create concise and engaging text for ads, website copy and more.
Long-form text generation
Generate blog posts, articles, ebooks and long texts.
Grammar correction and writing improvement
Ensure that your users’ written work
is accurate, clear, and professional.
Summarization
Highlight the main points of any piece of text.
Paraphrasing
Convey the same meaning of a sentence or paragraph in different words.
Customization
Train the model to write in your tone and voice.
Website builders and content editors
Text generation. The hardest part of writing is getting started.

Let the AI handle the first draft for your users.
Guided paraphrasing. Increase your users’ productivity by automating time-consuming tasks such as iterating on ad copy or repurposing content for a new target audience.
Grounded generation. Generate content that is rooted in verifiable knowledge and give your users peace of mind by providing proper citations.
Knowledge platforms
Smart auto-drafting. Your users will love writing at the speed of thought using generative AI and contextual completions for sentences and paragraphs.
Fine-tuned summarization. Every long document needs a TL;DR. Help your users enhance reports with executive summaries, simplify onboarding material with recaps, and more - all automatically generated with AI.
AI proofreading and editing. Help organizations level-up their knowledge base with a full suite of spelling, grammar and style improvements.
Communication platforms
AI-generated messages. Help users save time by generating context-relevant responses based on a short prompt.
Multi-purpose summarization. Reduce information overload by summarizing messages, threads, and links.
Grammar corrections and recommendations. Bring global teams closer together with an AI safety net that helps English Second Language (ESL) speakers express themselves easily.
Join the AI era
Many leading platforms have already adopted AI co-writing in their text editors. These include Google, Microsoft, Canva and Notion.
The market size for these tools was valued at $410.92 million in 2021 and is expected to grow to $1.3B by 2030.
Benefits for users
Increase user engagement
Users who find value in your product tend to utilize it with increased frequency.
Increase user productivity
Whatever your users are writing, co-writing features will help them write it better.
Draw users to your platform
Today's users know about the power of generative AI and expect the latest technology readily available in their writing tools.
Benefits of our models
We know co-writing
Having developed Wordtune, we have unparalleled knowledge and expertise in AI writing.
Reliable responses
Utilizing our industry-leading LLMs will ensure your users will get useful and reliable suggestions every time.Â
Fine tuning
Create content based on your
own models.
Easy integration
Developers are just one line of code away from leveraging our powerful and flexible API.
Level up your writing app
AI21 Labs offers the best production-grade LLM solution for co-writing apps and editors. Learn how you can save money and valuable development time, while helping your users write better and faster with AI.