Khanmigo Is Free Now — We Tested It for a Week

Khan Academy Made Khanmigo Free — But Is It Actually Good?

In March 2026, Khan Academy dropped the paywall on **Khanmigo**, its GPT-powered AI tutor. Previously $44/year for families and $25/year per student for schools, the tool is now completely free for anyone with a Khan Academy account.

We spent a full week testing Khanmigo across subjects, grade levels, and learning styles. Here's what we found — and where it still falls short.

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What Is Khanmigo?

Khanmigo is an AI-powered learning companion built directly into Khan Academy's platform. Unlike generic chatbots, it's designed with **pedagogical guardrails** — it won't just give you the answer. Instead, it asks guiding questions, provides hints, and walks you through problem-solving step by step.

Key capabilities:

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Our 7-Day Test: Methodology

We tested Khanmigo across **4 scenarios**:

Each scenario was also tested with **ChatGPT (GPT-5)**, **Google's LearnLM**, and **Socratic by Google** for comparison.

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Results: Where Khanmigo Excels

1. Math Tutoring — Best in Class

Khanmigo's math support is genuinely impressive. When our 8th-grader entered a wrong answer on a quadratic equation, Khanmigo didn't just say "incorrect." It asked:

> *"I see you got x = 3. Can you walk me through how you factored the equation? Let's look at the middle term together."*

This Socratic approach forced the student to identify their own mistake — a technique backed by decades of education research. **GPT-5 just gave the correct answer outright**, which teaches nothing.

**Verdict:** Khanmigo > GPT-5 > LearnLM > Socratic for math learning (not just math answers).

2. Writing Feedback — Surprisingly Nuanced

The essay coach didn't just flag grammar errors. It asked questions like:

> *"Your thesis says social media is harmful, but your second paragraph talks about connection. How might you address this contradiction?"*

It also provided **specific, actionable suggestions** rather than vague "improve your argument" feedback. However, it occasionally repeated the same structural advice across different essay types.

**Verdict:** Khanmigo ≈ GPT-5 for feedback quality, but Khanmigo wins on pedagogical approach.

3. Science Explanations — Good, Not Great

For AP Biology, Khanmigo gave solid explanations of cellular respiration and protein synthesis. But when our tester asked about CRISPR gene editing mechanisms, the responses were notably less detailed than GPT-5's.

**Verdict:** GPT-5 > Khanmigo for advanced science topics. Khanmigo wins for foundational concepts.

4. Teacher Tools — The Hidden Gem

This was the surprise winner. Khanmigo generated:

Our teacher tester called it *"the best AI tool I've used for lesson planning, period."*

**Verdict:** Khanmigo >> all competitors for teacher productivity.

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Where Khanmigo Falls Short

Limited Subject Coverage

Khanmigo works best with **Khan Academy's existing content library**. If you're studying something niche — marine biology, music theory, computer architecture — it often redirects you to related-but-not-quite-right material.

No Image or Diagram Understanding

Unlike GPT-5, Khanmigo can't analyze photos of handwritten work, diagrams, or charts. You have to type everything in, which slows down the workflow for visual learners.

Slower Response Times

Compared to ChatGPT's near-instant replies, Khanmigo takes 3-5 seconds per response. Not a dealbreaker, but noticeable during rapid back-and-forth tutoring sessions.

Age Guardrails Can Be Frustrating

Khanmigo is deliberately cautious. When our 16-year-old asked about the ethics of genetic engineering for a debate assignment, it declined to take a position. GPT-5 engaged fully with the topic. The safety-first approach is understandable for younger students but can feel limiting for older ones.

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Khanmigo vs. The Competition

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Who Should Use Khanmigo?

Best for:

Skip it if:

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The Bottom Line

Khanmigo going free is a **genuinely big deal for education**. It's the best free AI tutor available right now for K-12 students, especially in math. The Socratic approach actually teaches rather than just answers, and the teacher tools alone make it worth exploring.

But it's not a ChatGPT replacement. Think of it as a **specialized tutor** vs. a **general-purpose assistant**. For students and teachers within its sweet spot, nothing else comes close at this price point (free).

**Our rating: 8.2/10** — Best free AI tutor for K-12, held back by limited subject coverage and no image support.

FAQ

Is Khanmigo actually free now?

Yes. As of March 2026, Khan Academy removed the paywall entirely. Khanmigo is free for all students and teachers with a Khan Academy account — no credit card required.

Is Khanmigo better than ChatGPT for studying?

For K-12 math and science, yes. Khanmigo uses a Socratic method that teaches problem-solving rather than giving answers. For college-level work or general research, ChatGPT is more versatile.

Can Khanmigo help with SAT prep?

Yes. It offers guided SAT math practice with step-by-step explanations. However, for SAT reading and writing prep, dedicated tools like Khan Academy's own SAT course are more comprehensive.

What subjects does Khanmigo cover?

Khanmigo is strongest in math (K-12), science, and computing. It also supports writing coaching and history. Subjects like foreign languages, music, and art are not currently covered.