Every model students need
GPT-5 and Claude Opus 4 for essays. DeepSeek R1 and o4 for problem-solving. Perplexity-style search for research. Switch mid-chat — no five subscriptions.
AI for students who want to learn
Every model students need — GPT-5, Claude Opus 4, Gemini 3 Pro, DeepSeek R1, and Perplexity-style search — in one workspace from $20/month. More models and tools than a single-model subscription like ChatGPT Plus.
Students
Research with Perplexity-style models, write with Claude, solve math with GPT-5, and keep every note organised in Keep — all from $20/month.
Krater pricing · AI model directory · Connected AI apps · Educators
Highlights
Built to support real learning
Krater is a tutor, not a homework machine. Use it to explain concepts, check your reasoning, and find sources — then write your own work.
Notes that actually stay organised
Keep stores your lecture notes, reading lists and reference PDFs. @mention them in any chat — no more lost study notes.
Student-friendly pricing
Everything on one plan from $20/month (Pro), or $16.67/month on yearly billing. Compared to ChatGPT Plus + Claude Pro + Perplexity Pro — three separate $20 subscriptions — one Krater plan replaces all three.
Use cases
Concept explanations that click
Stuck on differential equations or Foucault's biopolitics? Ask Krater to explain like you're 12, then like you're writing an essay. Same concept, three depths.
Essay outlines, not essay shortcuts
Drop your thesis. Get a structured outline with arguments, counter-arguments, and sources to read. You still write the essay. /write
Step-by-step problem solving
Math, physics, chemistry, coding — ask GPT-5, DeepSeek R1 or o4 to walk through the steps. Check your own work against theirs.
Source-backed research
Ask the research model to find peer-reviewed sources on a topic. Citations included. /research
Practice questions and quizzes
Upload your lecture notes to Keep. Ask Krater to generate 20 practice questions in the style of your past exams.
Language learning partner
Voice Mode for conversation practice in 50+ languages. Switch to text when you want corrections. Voice Mode
Workflow
- Build your study brain: Upload syllabi, lecture slides and reading lists to Keep. Krater remembers them for the whole semester.
- Pick the right model: GPT-5 for writing. DeepSeek R1 for math. Perplexity-style search for research. Krater's auto-router picks for you if you don't want to choose.
- Learn, don't shortcut: Use Krater to understand, check, and revise — not to skip the work. The students who learn the most use AI to ask better questions.
- Revise on demand: Practice questions, concept summaries, flashcards from your notes — all from chat. Voice Mode for quick study walks.
Frequently asked questions
Is Krater cheaper than ChatGPT Plus for students?
Yes. ChatGPT Plus is $20/month for GPT-5 only. Krater Pro is the same $20/month ($16.67/month yearly) and gives you GPT-5, Claude Opus 4, Gemini 3 Pro, DeepSeek R1, Perplexity-style search AND image, voice and video generation. For the price of a single-model subscription, Krater does far more.
Will my professor know I used Krater?
AI detection tools are unreliable — but more importantly, the answer is to use AI as a tutor, not a ghostwriter. Krater is built to help you understand and check work. The students who genuinely learn use it to explain concepts, outline arguments and find sources — then write their own work in their own voice.
Can Krater help with math, physics and coding?
Yes. For step-by-step math: GPT-5 Pro and DeepSeek R1 are excellent. For coding: Claude Sonnet 4.6 and GPT-5 Codex. For long science explanations: Gemini 3 Pro. All on Krater — switch models in one click.
Is there a student discount?
Krater keeps pricing simple — Pro is $20/month, or $16.67/month on yearly billing. We don't require a .edu email or a special program — one public plan already packs 350+ models plus image, voice and video into a single subscription.
Can I share my Krater account with my study group?
Each account is per-user, but the Max plan ($119/month, 10,000 credits) is designed to be shared across a small group like roommates or a study circle. For larger groups (a whole class or club), Enterprise plans add multi-seat support.