AI writing tools
Lex: review, pricing, data and alternatives
Lex lets people writing individually or together create and edit documents. It offers feedback on drafts, instruction-based rewrites, document versions, reading links, and suggestions for titles. A free tier exists. Access and transparency score: 51/100, #7 of 15 in its category.
| Access | 15/30 | |
|---|---|---|
| Openness | 10/30 | |
| Trust | 26/40 |
What is Lex?
Lex lets people writing individually or together create and edit documents. It offers feedback on drafts, instruction-based rewrites, document versions, reading links, and suggestions for titles.
According to its documentation, Lex lets you:
- write and edit documents collaboratively
- request feedback on a draft
- rephrase passages using an instruction
- keep different versions of a document
- share a text with a reading link
- find title ideas
We file it under AI writing tools, the category of tools to write texts, articles and content, and it also overlaps with grammar and paraphrasing. The category lists 15 verified tools on this site.
The publisher is Lex, Inc., based in United States. The service launched in 2022, which gives it some track record.
Who is it for?
It is mostly useful to these profiles: content writers, marketers, researchers, and freelancers. The need it covers is simple to state: write texts, articles and content.
Lex is a good candidate if:
- you want to try before paying
- you plan to connect it to your tools or automations through its API
Before deciding, run a trial on a real task and measure the time saved: it is the only criterion that really counts.
How much does Lex cost?
Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.
The entry price is not shown publicly: you have to contact the publisher or create an account to see it.
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
The publisher does not clearly state where data is hosted. Assume your content may leave your region.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
No export feature is documented: keep a copy of your content elsewhere.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
Lex runs on: web browser and API.
Interface languages: English.
A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.
How we scored it
Our 51/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 15/30 | free tier, published price, French interface |
| Openness | 10/30 | API, data export, open code |
| Trust | 26/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Lex against other tools in the aI writing tools category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Lex | Yes | not published | Yes | 51 |
| Rytr | Yes | $9 per month | Yes | 71 |
| Jenni | Yes | $12 per month | – | 66 |
| HyperWrite | Yes | $16 per month | – | 61 |
| Spell | Yes | $20 per month | – | 58 |
| Anyword | No | $39 per month | Yes | 56 |
| BizPlanner AI | Yes | $4.99 one-off payment | – | 53 |
| Moonbeam | Yes | $49 per month | – | 51 |
Verdict
Lex publishes little verifiable information: look at the better-scored alternatives first.
Strengths
- Free tier to try it
- Public API
- Established since 2022
Limitations
- Price not published
- Data hosting not disclosed
- Data export not documented
Avoid if…
- You handle sensitive personal data without a processing agreement
- You need to easily retrieve your full history
Alternatives
- Rytrfree tier
- Jennifree tier
- HyperWritefree tier
- Spellfree tier
- Anyword$39 per month
- BizPlanner AIfree tier
Categories and jobs
Learn more
Frequently asked questions
Is Lex free?
Yes, a free plan exists, with usage limits.
Where is Lex data stored?
The publisher does not clearly say so in its public documentation.
Does Lex have an API?
Yes, a public API is documented.
What are the alternatives to Lex?
In the same category: Rytr, Jenni, HyperWrite, and Spell.
Lex or Rytr: which one to choose?
Our score is 51/100 for Lex and 71/100 for Rytr. Try both on the same task before paying.
Related articles
- Creating videos with AI: what works todayOctober 10, 2026
- Generating images with AI: tools, pricing, and limitationsOctober 9, 2026
- How to use NotebookLM: a complete guideOctober 8, 2026
- Free ChatGPT alternatives: what they actually offerOctober 7, 2026
Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score