No-Code AI for Education: Lesson Planning, Grading and Student Support — What It Costs and Where Lock-In Bites
No-Code AI for Education: Lesson Planning, Grading and Student Support — What It Costs and Where Lock-In Bites
The official documentation tells a narrower story. Across the pricing and product pages for Khan Academy’s Khanmigo, Google’s Gemini for Education and the automation platform n8n, no page in this source set says any tool assigns grades. Khanmigo’s page offers “an on-demand summary of student work to assess progress”, and Google’s own wording for Gemini is that it “can draft feedback suggestions for written assignments” (Google Help: Gemini in Google Classroom). What the same pages do establish, in plain figures, is cost and the gates around it. This guide quotes those figures exactly, marks every gap as “Not stated in source”, and does not rank the products on a cost basis their own pages were not published to support.
What “no-code AI for education” means in this guide
Three products appear here and they are not like-for-like. Khanmigo is a tutoring and teacher-assistant product with individual and family plans and a free teacher tier (Khanmigo Pricing). Gemini for Education is a bundled and freemium workspace AI sold through Google Workspace for Education editions, with an optional per-user add-on (Gemini for Education). n8n is self-hostable automation infrastructure whose free edition carries the Sustainable Use License (n8n Community License FAQ).
Scope statement: n8n is not an education product in these sources; nothing in its pricing or licence documentation addresses lesson planning, grading or student support. It is covered only for no-code automation economics — execution-based billing — and for licence lock-in, the sharpest documented example in the set.
Lesson planning: what each product’s own pages promise
Khanmigo’s free teacher tier
Khanmigo’s pricing page headlines its teacher section “Get started — it’s free” and lists what that includes: “Generate standards-aligned, differentiated lesson planning tied to our content library.” and “Create learning objectives, rubrics, and even exit tickets.” (Khanmigo Pricing). No usage cap, seat limit or trial length for that free tier is published on the page.
Gemini in Classroom’s teacher tools
Google documents 17 named educator tools on the web, including “Outline a lesson plan”, “Create a rubric”, “Re-level text” and a translation tool that will “Translate text into over 100 languages through AI to share with your class.” (Google Help: Gemini in Google Classroom).
Grading and feedback: what the documentation says — and doesn’t
The only teacher-side feedback feature on written work in this source set is a drafting aid: Gemini “can draft feedback suggestions for written assignments” (Google Help: Gemini in Google Classroom). The add-on’s list price is Not stated in source — the Gemini for Education page prices Google AI Pro for Education and quotes no figure for the Teaching & Learning Add-on; how the two relate is not stated in source (Gemini for Education). Google’s own caveats travel with the capability: “Gemini can make mistakes. Always double-check responses for accuracy.” (Google Help: Gemini in Google Classroom). Khanmigo’s nearest documented feature is a summary, not a grade (Khanmigo Pricing).
The accuracy gap, scoped to the sources reviewed: no accuracy rate, agreement rate with human graders, bias audit or rubric-validation study for grading appears anywhere in the seven files behind this guide. Whether an AI-generated grade would be accepted for credit by any accreditor or examination board is Not stated in source.
Student support: tutors, notebooks and guardrails
Google’s teacher-led AI tools page names two products: “Guided Learning in Classroom” and “Gemini Notebook” (Google Help: Teacher-Led AI Tools in Classroom). Guided Learning “acts as a personal tutor that walks students through concepts step-by-step using a scaffolding approach” and “avoids giving students direct answers”. On the student side, the Gemini tab in Classroom offers starter tiles to “help me learn, quiz me, make flashcards, or create a study guide” (Google Help: Gemini in Google Classroom).
The privacy framing printed alongside those student features is “enterprise-grade privacy and security, where data is not reviewed by humans or used to train AI models” (Google Help: Gemini in Google Classroom). Khanmigo’s individual plan covers “personalized tutoring on Khan Academy’s world-class content” and “real-time feedback” on coding, while the families plan adds “View the history of your children’s interactions and get moderation alerts” (Khanmigo Pricing). Beyond those alerts, no age policy, retention period or moderation specification appears in the Khanmigo pricing file.
What it costs: every published price, quoted exactly
The comparison table
Every cell below is reproduced as printed; no currency conversion has been performed.
| Product / plan (as printed) | Price (as printed) | Billing basis / commitment | Free tier or trial | Volume or usage limit | Hosting / delivery | Source |
|---|---|---|---|---|---|---|
| Khanmigo — “For Teachers” | “Get started — it’s free” | Not stated in source | Yes — “Sign up for free” | Not stated in source | Not stated in source | Khanmigo Pricing |
| Khanmigo — “For you” | “$4/month” / “$44/year” (“Save $4 w/ annual”) | Monthly or annual; “*Sales tax not included in Khanmigo pricing.” | Not stated in source | Not stated in source | Not stated in source | Khanmigo Pricing |
| Khanmigo — “For families” | “$4/month” / “$44/year” (“Save $4 w/ annual”) | Monthly or annual; “*Sales tax not included in Khanmigo pricing.” | Not stated in source | Not stated in source | Not stated in source | Khanmigo Pricing |
| Khanmigo — “Khanmigo District Tools” | “Request pricing” | Not stated in source | Not stated in source | “Khanmigo access for teachers and students in your district” | SSO “through Clever SecureSync or ClassLink” | Khanmigo Pricing |
| Gemini for Education (standalone app) | “No cost for qualifying institutions*” | Free via Google for Education Fundamentals | Yes — free | “Limited access to our premium AI models” | Google Workspace for Education terms | Gemini for Education |
| Google AI Pro for Education (add-on) | “$15.00*” and “$20.00”; “or $24.00 per user/month when billed monthly” | “per user/month, one year commitment” | Not stated in source | “1,500 pages of file uploads”; “5x higher limits” on Gemini Notebook | “ADD-ON TO YOUR WORKSPACE EDITION” | Gemini for Education |
| Gemini in Google Classroom | Included — “available with all Google Workspace for Education editions” | Bundled | Included with editions | Not stated in source | Classroom web + Android & iOS app | Google Help: Gemini in Google Classroom |
| Feedback-for-written-assignments feature | Not stated in source | Gated to “Education Plus” or “Teaching & Learning Add-on” | Not stated in source | Not stated in source | Google Classroom (web) | Google Help: Gemini in Google Classroom |
| n8n Starter | “20€/mo, billed annually” | Annually billed (monthly figure not printed) | “Start free trial” | “2.5Kworkflow executionswith unlimited steps”; 5 concurrent | “Hosted by n8n” | n8n Pricing |
| n8n Pro | “50€/mo, billed annually” | Annually billed (monthly figure not printed) | “Start free trial” | “10Kworkflow executionswith unlimited steps”; up to 50 concurrent | “Hosted by n8n” | n8n Pricing |
| n8n Business | “667€/mo, billed annually” | Annually billed | “Start free trial” — credit card required | “40Kworkflow executionswith unlimited steps” | “Self-hosted only” | n8n Pricing |
| n8n Enterprise | “Contact Sales” | “Sales assisted procurement” | Not stated in source | “Custom workflow executions”; “200+ concurrent executions” | “Hosted by n8n or Self-hosted” | n8n Pricing |
| n8n Community Edition | Free (self-hosted) | “applies to the self-hosted version of n8n only” | Is itself free | No execution quota printed | Self-hosted, “available on GitHub” | n8n Community License FAQ, n8n Community Edition Features |
Khanmigo
Teachers pay nothing. District Tools carries no figure at all: the page says “Request pricing” and links to a “Request pricing” page (Khanmigo District Tools, Khanmigo Pricing). What that tier includes is listed — district-wide teacher and student access, automatic rostering and SSO via Clever SecureSync or ClassLink — but the price is Not stated in source.
“No cost for qualifying institutions” is the Gemini for Education line, available by “signing up for Google for Education Fundamentals, even if you use a different primary productivity suite” (Gemini for Education, Google Workspace for Education signup). The paid tier is Google AI Pro for Education at “$15.00*” and “$20.00” “per user/month, one year commitment or $24.00 per user/month when billed monthly”, with a footnote offering “*25% discount for Education Plus customers on purchases of 50-999 licenses with one year commitments”.
n8n Cloud
Billing is execution-based: “If it doesn’t run, you don’t pay” and “An execution is a single run of your entire workflow. It doesn’t matter how many steps are in the workflow or how much data it processes. It’s still a single execution.” Monthly-billed figures are Not stated in source for any plan (n8n Pricing).
What nothing in the sources prices
Khanmigo District Tools, the Teaching & Learning Add-on list price, n8n’s monthly billing, the Startup plan’s discounted figure (the page only offers “50% off Business” to companies under 20 employees) and total cost of ownership are all Not stated in source. No implementation, training, integration or support-hours cost appears in any of the seven files behind this guide.
Where lock-in bites: gates, licences and exits
n8n’s Sustainable Use License
The free self-hosted edition runs under the Sustainable Use License, which “is free and applies to the self-hosted version of n8n only” (n8n Community License FAQ). The prohibited list is where lock-in lives for anyone building a product on top. You may not “Host n8n as a service and allow your clients to build workflows”, “Allow external end users to build or configure their own workflows through your product, whether via a custom UI, our API, MCP, or an AI agent acting on the user’s behalf.”, “Fork n8n’s code to launch your own automation product”, “White-label n8n by removing our branding”, or “Use enterprise features that ask for a license key without an Enterprise license.” The FAQ’s credentials test is blunt: “The key question is not whose credentials are used, but who controls the workflow logic.” For embedded builders the suggested path is an Enterprise license, which the FAQ says is “designed for this architecture”; the FAQ routes that conversation to n8n sales.
Community edition exclusions and the daily ping
The Community edition excludes 10 listed features including SSO (SAML, LDAP), Projects, Sharing, Environments, External secrets and Version control using Git. Registering with an email unlocks Folders, Debug in editor and Custom execution data; none of the 10 excluded features are unlocked (n8n Community Edition Features).
Self-hosted Business and Enterprise carry their own tie: “you receive a license key that must ping our license server daily to stay active”, and the ping includes data such as the number of production executions. One key covers an unlimited number of instances, with combined usage counting toward quota and overage charges possible if you do not upgrade (n8n Pricing).
Google’s edition gates
The feedback feature is gated to “Education Plus” or the “Teaching & Learning Add-on” (Google Help: Gemini in Google Classroom); Google AI Pro is sold as an “ADD-ON TO YOUR WORKSPACE EDITION” priced at $15.00*/$20.00 per user/month on a one-year commitment, or $24.00 billed monthly, and a sales-assisted process (Gemini for Education). The free and paid tiers differ by degree of access: the free tier includes “Limited access to our premium AI models” and “limited access to Deep Research”, while the paid tier offers “Expanded access to our premium AI models” and “expanded limits” on Deep Research and Audio Overviews, and “5x higher limits” on Gemini Notebook.
What no source says about exits
No data-export, data-portability or contract-exit terms for Khanmigo or Google’s education AI appear in these files. Vault lets admins “search Gemini conversations in your domain and create an export of your search results”, and no wider portability or contract-exit terms appear in these files (Gemini for Education). No LTI, OneRoster, QTI or Caliper interoperability is mentioned anywhere. The only SLA in the set is n8n Enterprise’s “Dedicated support with SLA” (n8n Pricing).
Privacy, admins and compliance: what’s on the record
Google prints the same protection line for both education tiers: “Enterprise-grade data protection: Core Service covered under Google Workspace for Education terms. Data is not human reviewed or used to train AI models.” (Gemini for Education). The compliance sentence, quoted as printed, reads “Gemini supports compliance with a number of industry regulations, including COPPA, FERPA, HIPPA [sic], FedRamp and more.” Admin controls named on the page are “Control who has access” and “Review Gemini usage”.
Khanmigo’s pricing file contains no privacy policy, retention statement or COPPA/FERPA claim beyond the families plan’s moderation alerts (Khanmigo Pricing). n8n states that for hosted plans “data is stored within the EU, on servers located in Frankfurt, Germany” and for self-hosted plans “it’s wherever you decide to host n8n” (n8n Pricing); no education-specific compliance statement appears in its documentation.
Two vendor marketing claims appear in the Google source, with no methodology, sample size or independent verification: that Miami-Dade County Public Schools has “100,000 high school students and teachers” using Gemini for Education, and that “Teachers in Northern Ireland are saving up to 10 hours per week with Gemini” (Gemini for Education).
Matching tools to builders: gates, quotas and licences — not head-to-head costs
Teachers with zero budget. Khanmigo’s free teacher tier covers lesson planning, rubrics, exit tickets and student-work summaries; Gemini for Education is “No cost for qualifying institutions” (an institution-level offer, not a per-teacher one) through Google for Education Fundamentals (Khanmigo Pricing, Gemini for Education).
Schools already on Google Workspace for Education. The lesson-planning tools come with every edition, but the feedback feature needs Education Plus or the Teaching & Learning Add-on (Google Help: Gemini in Google Classroom). Budget for the edition, not the model.
Operators and founders embedding automation. n8n’s execution model charges per workflow run, not per step or per seat, which the pricing page says “makes your usage more predictable than other tools where you pay individually for every step or task” — but the Sustainable Use License decides whether you can let customers build their own workflows at all (n8n Pricing, n8n Community License FAQ).
FAQ
Is Khanmigo free for teachers? Yes — the teacher section is headed “Get started — it’s free”, and the pricing page does not list a usage cap (Khanmigo Pricing, Khanmigo teacher tools).
Can Gemini grade my students’ essays? The documented feature drafts feedback: Gemini “can draft feedback suggestions for written assignments”. No automated scoring is documented in the sources reviewed (Google Help: Gemini in Google Classroom).
Is Gemini for Education really free? For qualifying institutions, yes: “No cost for qualifying institutions*” via Google for Education Fundamentals (Gemini for Education).
What does n8n cost per month? The page prints Starter “20€/mo, billed annually”, Pro “50€/mo, billed annually” and Business “667€/mo, billed annually”. Monthly-billed figures are Not stated in source (n8n Pricing).
Can I run a paid teacher-training workshop on n8n’s Community edition? Paid training and consultancy are permitted, and free temporary events are allowed; for a paid workshop the documented conditions are no ongoing access afterwards, no enterprise features, and fees charged for the training rather than for n8n access (n8n Community License FAQ).
Can students under 18 use these tools? Google says students under 18 “get a distinct product experience with extra guardrails and AI literacy resources”; student access to Gemini in Classroom depends on an admin-enabled licence (Gemini for Education, Google Help: Gemini in Google Classroom).
Which features are missing on mobile? Only five Classroom Gemini features are listed for Android and iOS; anything not on that list “is currently not available on the Classroom mobile app” (Google Help: Gemini in Google Classroom).
Can I get my data out? Data-export and exit terms for Khanmigo and Google’s education AI are Not stated in source. Vault export is documented for admin search results; wider portability terms are Not stated in source (Gemini for Education).
The Bottom Line
Nothing in the sources reviewed supports handing grading to an AI. The only documented feature drafts feedback suggestions, Google attaches its own accuracy warning and its own statement that “AI can never replace the expertise, knowledge, or creativity of an educator” (Google Help: Gemini in Google Classroom). Lesson planning and student support are a different story: those features are documented, and the free tiers are real.
The cost story is free tiers plus edition gates plus quote-only tiers — Khanmigo free for teachers, Gemini “No cost for qualifying institutions”, n8n from “20€/mo” — with every printed figure in the table above.
Lock-in shows up in feature gates (Education Plus or the Teaching & Learning Add-on), in licence terms (the SUL’s ban on letting external end users build their own workflows), in edition exclusions (no SSO, Projects, Sharing or Git version control in Community), and in a licence key that “must ping our license server daily”; n8n states it does not offer pro-rata refunds on cancellation (n8n Community License FAQ, n8n Community Edition Features, n8n Pricing).
How This Guide Was Built
This guide was built entirely from official documentation and pricing pages: the Khanmigo pricing page, three Google Help and product pages covering Gemini in Classroom and Gemini for Education, and n8n’s pricing page, licence FAQ and Community edition feature documentation (Khanmigo Pricing, Google Help: Gemini in Google Classroom, Google Help: Teacher-Led AI Tools in Classroom, Gemini for Education, n8n Pricing, n8n Community License FAQ, n8n Community Edition Features).
The author did NOT run any of these tools hands-on. No account was created, no workflow was executed and no Classroom instance was configured for this piece. Quotations are reproduced verbatim, prices are reproduced exactly as printed including their currencies, and no currency conversions were performed. Where the sources are silent, the gap is labelled “Not stated in source” rather than estimated.
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