Short answer: AI helps with differentiated instruction most when you use it to turn one piece of content into several versions — the same article at three reading levels, the same task with different scaffolds, the same concept with an extension for students who are ready. The practical workflow is: choose one anchor text or task, generate leveled versions with a tool such as Diffit, Brisk Teaching, or MagicSchool AI, add supports and extensions, then review every version yourself for difficulty, accuracy, and bias before students see it. AI drafts the versions; you decide what each group of students actually needs.
What “differentiated instruction with AI” really means
Differentiation is not easier work for some students and harder work for others. It keeps the learning goal the same and changes the route: the reading load, the amount of scaffolding, the way a student shows what they know. Done well, every version points at the same standard.
That is where AI earns its place. Producing three versions of a passage by hand is the kind of task that eats a prep period. A tool that produces a first pass in a minute lets you spend your time on what requires a teacher: checking whether each version fits the students in front of you.
What AI cannot do is know your students. It cannot tell you who reads two grades below level or who is ready for an extension. You supply that judgment; the tool supplies the drafts. For the wider picture, see our guide to the best AI tools for teachers.
The workflow: one source, several versions
The reliable way to differentiate with AI is a fixed sequence. Each step produces something you review before moving on, which keeps the tool from quietly changing the learning goal.
Step 1 — choose one anchor text or task
Start with a single piece of content: an article, a short story excerpt, a set of word problems, a primary source. You generate every version from it, so the concept stays identical and only the access changes.
Step 2 — generate versions at different reading levels
Feed the anchor text to a leveling tool and ask for versions at the levels your class spans: one near grade level, one simplified with shorter sentences and more common vocabulary, and one above grade level that adds complexity. The goal is the same ideas at three levels of access, not three different lessons.
Step 3 — add scaffolds for students who need support
Reading level is only one barrier. Ask the tool to add vocabulary glossaries, sentence starters, a graphic organizer, or guiding questions alongside the simplified text. These let a student reach the same content without a separate assignment that signals lower expectations.
Step 4 — add extension tasks for students who are ready
At the other end, generate a short extension: a question that pushes into analysis, a prompt to compare the source to a second text, or a task that asks the student to argue a position. Extension work should deepen the same concept, not jump to a new topic.
Step 5 — review every version for difficulty and bias
This step is not optional. Read each version and check three things: is the difficulty right for the students you have in mind, is the content accurate, and does the wording carry any bias or stereotype. AI can flatten nuance or import assumptions. You are the last gate before students see it.
The tools at a glance
| Tool | Best for | Pricing model |
|---|---|---|
| Diffit | Leveled passages, questions, and vocabulary from one source | Free tier; subscription |
| Brisk Teaching | Changing the reading level of a document you already have | Free tier; paid plans available |
| MagicSchool AI | Text leveling plus lesson, rubric, and IEP tools | Free tier; subscription |
| Newsela | A library of current-event texts at multiple reading levels | Free tier; paid plans available |
| CommonLit | A leveled reading library with question sets | Free account |
| Rewordify | Instantly simplifying difficult text | Free |
| Khanmigo | Student-facing tutoring and practice | Free for teachers; paid for families |
| Texthelp Read&Write | Reading and writing supports for students who need them | Free tier; subscription |
| SchoolAI | Safe, monitored AI spaces and lesson help | Free tier; subscription |
| ChatGPT | Rewriting, scaffolding, and extension tasks on demand | Free tier; paid plan available |
| Claude | Long-passage rewriting with careful tone control | Free tier; paid plan available |
| Google Gemini | Leveling and summarizing inside Google Workspace | Free tier; paid plan available |
Pricing models change often in this category. Treat the column above as a starting point and confirm current details on each vendor’s site.
Leveling tools, in detail
These tools carry most of the workflow above. Each is strong at one part and weak at another, so most teachers use two.
Diffit — leveled passages and questions from one source
Diffit takes a topic, an article, or a passage and produces a leveled reading version with vocabulary support and comprehension questions attached. You can adjust the level up or down and translate the output for English learners.
Where it falls short: the leveled text is a rewrite, so it can lose nuance or shift a fact. The free tier limits how much you can generate, and the questions still need editing for alignment and difficulty.
Brisk Teaching — change reading level inside your own document
Brisk Teaching runs as a browser extension and works on the documents you already use, including Google Docs and web pages. Its leveling feature rewrites a passage at a target grade level in place, which is convenient when you want to keep your formatting and just adjust the text. It also offers feedback and slide help.
Where it falls short: working inside your own document is fast, but the leveled version can overwrite your original, so always work on a copy, and check that meaning survived the level change.
MagicSchool AI — a text leveler plus the rest of the toolkit
MagicSchool AI includes a text leveler among a large set of teacher tools, so you can level a passage and then build the surrounding lesson, rubric, or support materials from the same account. For teachers who want fewer logins, that consolidation is the argument. See our guide to AI lesson planning tools for how the planning side fits together.
Where it falls short: the leveler is one feature among many, so it is not as specialized as a dedicated tool, and the free tier caps usage.
Newsela and CommonLit — libraries that are already leveled
Newsela and CommonLit take a different approach: instead of leveling your text, they offer a library where each passage already exists at multiple reading levels, often with question sets attached. Newsela leans toward current events; CommonLit leans toward literary and nonfiction texts with text-dependent questions. When your anchor text can come from their library, you skip the leveling step.
Where it falls short: you are limited to their catalog, so this works only when a text in the library fits your lesson, and the most useful levels often sit behind paid plans.
Rewordify — simplify any text on the spot
Rewordify takes difficult text and replaces hard words with simpler ones, highlighting the swaps so students see what changed. It is quick and needs no account, which makes it handy for a passage you need simplified right now.
Where it falls short: it simplifies vocabulary rather than rewriting for comprehension, so sentences stay long and the structure does not change. It is a support, not a full leveling tool.
ChatGPT and Claude — the flexible fallback
A general assistant can do everything the dedicated tools do if you prompt it well: “rewrite this passage at a fifth-grade reading level, keep the key facts, and add a three-word glossary for the bolded terms.” The advantage is total control over the instructions, and you can produce scaffolds and extensions in the same conversation.
Where it falls short: there is no built-in grade-level check, so verify the reading level yourself, and quality varies with how you prompt. Do not paste student names, IDs, or their work into a public tool — that falls under FERPA and COPPA, and your district policy comes first.
Scaffolds and supports beyond reading level
Reading level is the most visible barrier, but not the only one.
Khanmigo — tutoring support for students
Khanmigo, built on Khan Academy, gives students an AI tutor that asks guiding questions instead of handing over answers, and it includes teacher-side planning help. It fills a different gap than a leveler does: practice and a nudge, rather than a simplified text.
Where it falls short: it is a tutoring tool, not a leveling tool, so it does not replace the workflow above, and access terms differ for teachers and families.
Texthelp Read&Write — reading and writing supports
Read&Write provides text-to-speech, word prediction, and a talking dictionary, helping students access grade-level text without lowering the content. It is often right when the barrier is decoding or writing rather than comprehension.
Where it falls short: it supports access to text but does not differentiate the text itself, and the most useful features usually need a paid license.
SchoolAI and Eduaide.AI — teacher-side planning tools
SchoolAI offers monitored AI spaces alongside planning tools, and Eduaide.AI focuses on generating instructional materials. Both help you build the supports around a differentiated text rather than the text itself.
Where it falls short: they add another platform to manage, and if you only need leveled text you do not need them.
Where differentiation with AI goes wrong
The most common failure is that the leveled versions quietly diverge. The simplified text drops a key idea, the extension jumps to a new concept, and the class is no longer working toward the same goal. Differentiation turns into three different lessons, which defeats the purpose.
The second failure is bias. A rewrite can smooth a text into stereotypes or strip out the complexity that made it worth reading, and because it looks clean and fluent, the problem is easy to miss. Read every version with that risk in mind and keep the anchor text as your reference.
The third risk is academic integrity. When you hand students AI-built supports, they can use the same tools to do the thinking the task was meant to require, so state clearly when AI help is allowed.
Frequently asked questions
What are the best AI differentiated instruction tools for K-12?
For leveling a text, Diffit, Brisk Teaching, and the text leveler in MagicSchool AI are the most common choices, with Newsela and CommonLit as options when you can use their libraries. For supports around the text, Khanmigo, Read&Write, and SchoolAI fill different needs. Most teachers pair one leveling tool with a general assistant.
Can AI really produce a text at a specific reading level?
It can produce a good approximation, but the grade level is a target, not a guarantee. Tools estimate readability using formulas, and a passage can score at grade level while still being hard for a particular class because of background knowledge or vocabulary. Read it yourself and adjust before using it.
How do I use AI to scaffold without lowering expectations?
Keep the learning goal fixed and change only the support. Give the same concept, the same essential question, and the same standard, then add glossaries, sentence starters, or organizers for students who need them. The test is whether a student working with the scaffold still has to do the thinking — if the support does the thinking for them, it has gone too far.
Is it safe to put my students’ information into these tools?
No. Student names, IDs, grades, IEP or 504 details, and their written work are protected under FERPA, and data about children falls under COPPA. Use a district-approved account, avoid pasting personal information or student work into public AI tools, and check whether a free tier uses your inputs to train models. Your district’s data-privacy policy comes first.
Do I need district approval to use these tools?
Usually yes for anything that stores student data or runs on school devices. Many districts keep an approved-tool list and a review process, and some block unapproved tools on school networks. Confirm the policy before you build a routine around any tool, especially one students log into.
Where we stand
AI makes the mechanical part of differentiation fast: three reading levels, a glossary, a scaffold, an extension, all from one source. That is a genuine change for teachers who used to do it by hand or skip it under time pressure. But the value depends on the review you do afterward — checking difficulty, accuracy, and bias.
Our practical recommendation is to pick one leveling tool, such as Diffit or Brisk Teaching, and one general assistant for scaffolds and extensions, then treat the anchor text as the fixed point everything else serves. If you are still assembling your toolkit, our roundup of free AI tools for teachers is the cheapest place to start.
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