Best AI Tools for Teachers in 2026: Planning, Grading and Feedback

Updated October 16, 2026 – Tested Intelligence

The short version: the best AI tool for a teacher depends on the job that eats your time. MagicSchool AI is the strongest all-rounder, with 80+ teacher tools on one platform and a genuinely usable free tier. Brisk Teaching is the pick if you live in Google Docs and want feedback help without leaving the document, and Khanmigo is the safest way to put AI in front of students because it is built to guide rather than answer. Every tool below was checked against the vendor’s own site for pricing and features.

MagicSchool AI

MagicSchool is the biggest dedicated toolkit in this roundup: 80+ teacher tools covering lesson plans, rubrics, IEP drafting, quizzes, report card comments, and writing feedback, plus 50+ student-facing tools. The free tier is not a demo – it includes the teacher tools with generation limits – and MagicSchool Plus ($8.33 per user/month billed annually, $12.99 month to month) removes the limits and adds output history and editing, assignable quizzes with real-time summaries, and batch writing feedback against your rubric. District plans add SSO and LMS integrations.

Best for: teachers who want one platform for almost every prep task instead of five subscriptions.

Brisk Teaching

Brisk is a Chrome and Edge extension that sits inside the tools teachers already use – Google Docs, Slides, articles, PDFs, and YouTube – rather than asking you to work in another app. Its 20+ free tools include feedback generation with multiple styles, quiz and lesson creation, reading-level adjustment, and an inspect-writing tool. Brisk’s own FAQ confirms the Free Forever plan keeps those core tools at no cost after an initial 14-day premium trial; Educator Pro runs $99.99 per year for individuals, and schools and districts are custom-priced.

Best for: Google Workspace teachers who want AI feedback and creation help inside the document they are already grading in.

Khanmigo

Khan Academy’s Khanmigo is the outlier here: it is a tutor first and a teacher assistant second. For students, it is deliberately designed to ask guiding questions instead of handing over answers, and it works across Khan Academy’s math, science, humanities, and coding content. Teachers get planning tools of their own – lesson plans, rubrics, exit tickets, and a question generator. Khanmigo is free for K-12 teachers; learners and parents pay $4 per month (or $44 per year), and district arrangements are handled separately.

Best for: putting AI in front of students with the least risk of it becoming an answer machine, plus free teacher planning tools.

Diffit

Diffit does one job and does it well: it takes any topic, text, or article and rebuilds it as leveled reading resources – adapted passages at different reading levels, vocabulary, and comprehension questions. That makes it the differentiation specialist of the group. The free plan covers the core resource generation; the individual teacher subscription costs $14.99 per month or $149.99 per year and adds exports to Google and Microsoft formats, standards alignment, longer inputs, and advanced customization, per Diffit’s own subscription page. School-wide licensing is priced by enrollment.

Best for: mixed-ability classrooms where the same text has to work at three reading levels.

SchoolAI

SchoolAI is built around supervised student use. Teachers create or assign Spaces – guided AI activities from a large library – while Dot, the student-facing assistant, works within teacher-set guardrails, and the Mission Control dashboard shows what students are asking and where they struggle. The teacher plan is free with basic tools and Spaces plus a daily student-session allowance; paid school and district tiers are sold by quote, not at a public price.

Best for: schools that want students using AI with real-time teacher oversight and insight, not a free-for-all chatbot.

Eduaide.Ai

Eduaide.Ai is a planning workspace built by former teachers, organized around 100+ generators mapped to named instructional strategies: lesson plans, units, worksheets, assessments, and a Feedback Bot that works from your rubric. The free plan allows a limited number of generations each month (about 15), and Eduaide Pro is one of the cheapest upgrades in this roundup at $49.99 per year, which removes generation limits and adds document chat for revisions, differentiation tools, image generation, and longer inputs.

Best for: teachers who plan in long stretches and want the lowest-cost unlimited plan in the category.

Curipod

Curipod generates whole interactive lessons – slides with polls, word clouds, drawings, and open responses – that students join live without accounts, and gives instant AI feedback on student writing during the lesson, aligned to state standards and test rubrics. The free plan includes core activities with capped feedback length; Premium runs $7.50 per month billed annually ($9 monthly), and school and district licenses are custom-priced.

Best for: teachers who want lessons students participate in, not just content they receive.

Quizizz (now Wayground)

Quizizz, rebranded as Wayground, pairs a huge library of teacher-made activities with AI generation that can build quizzes and lessons from your material. It runs both live and as self-paced homework, with reports teachers can act on. The Basic plan is free and includes AI generation with limits on saved activities; school and district plans – which unlock the full question-type library, admin dashboards, and rostering – are quote-based rather than sold at a public individual price.

Best for: gamified practice and formative assessment with a ready-made content library behind it.

Edcafe

Edcafe turns topics, files, and links into interactive teaching materials: quizzes, flashcards, vocabulary sets, and simple AI chatbots students can question, organized in a class library. The free plan includes 100 generations a month; Pro is $7.99 per month billed annually and Premium $14.99, raising limits and unlocking the full interactive set.

Best for: teachers who want interactive, student-facing versions of their materials without building them by hand.

Frequently asked questions

Which of these tools is completely free for teachers?

Khanmigo’s teacher tools are free for K-12 teachers, and Brisk Teaching’s Free Forever plan keeps 20+ tools at no cost. MagicSchool, Diffit, SchoolAI, Eduaide.Ai, Curipod, Quizizz, and Edcafe all have free tiers with real limits – enough to judge fit before paying.

Are these tools safe to use with student work?

The dedicated education platforms here (MagicSchool, SchoolAI, Brisk, Khanmigo, Curipod, Diffit) publish FERPA and COPPA compliance positions on their own sites. The standing rule still applies: do not paste student names or identifying details into any AI tool, and check your district’s approved-tools list before classroom use.

What is the cheapest paid upgrade?

Eduaide.Ai Pro at $49.99 per year is the lowest-cost unlimited plan in this roundup, followed by Curipod Premium at $7.50 per month billed annually and MagicSchool Plus at $8.33 per month billed annually.

Can a general chatbot replace these?

For one-off drafting, often yes. What purpose-built tools add is structure: rubrics, standards alignment, leveled text, supervised student access, and exports to platforms schools already use. And start on free tiers personally – make the case for a district license, with its admin controls and privacy agreements, once a tool is clearly saving prep time.

Bottom line

If you only try two, make it MagicSchool AI for the sheer breadth of its free teacher toolkit and Brisk Teaching for feedback help that lives inside Google Docs. Add Khanmigo when students enter the picture, Diffit when reading levels are your weekly headache, and Eduaide.Ai when you want an unlimited planning workspace for about the cost of one coffee run per month.