Infera

Using AI is easy.
Understanding it isn’t.

A guided path through tokens, attention, and transformers: the machinery that turns your prompt into an answer.

Get in touch See how it works

iOS app coming soon. 72 short lessons, a few minutes each.

Next token: hidden until you understand why.

How it works

One idea per lesson, and it has to stick.

Every lesson explains a single piece of the stack, then checks that it landed before the next one unlocks.

A picture, then the rule

Causal masks, attention heads, positional encoding. Each gets one plain-language explanation and one diagram you can actually picture later.

An Infera lesson titled 'A causal mask hides the future', with three tokens where the last is blocked from view and a short explanation of causal masking.

You have to answer to move on

Multiple-choice and scenario checks sit inside every lesson. You answer, you see why it is right, then you continue. The idea has to survive a real question first.

An Infera practice question asking why a transformer uses several attention heads, with two correct statements selected and a 'Correct' confirmation.

Curriculum

Everything between a prompt and an answer.

The full path, in the order you take it.

  1. 01Tokens and vocabulary
  2. 02Embeddings
  3. 03Attention and causal masks
  4. 04Transformer blocks
  5. 05Positional encoding
  6. 06Training and loss
  7. 07Fine-tuning and RLHF
  8. 08Inference and sampling
  9. 09Context windows
  10. 10Hallucination and limits

Who it’s for

Built for people who already use AI at work.

Not another prompt cheat sheet. Mental models that still hold up when the next model name shows up.

Streaks
Kept every day you show up
Gems
Earned each session you finish
Synced
Progress saved to your account

Get in touch

Contact

Questions, press, partnerships, or App Store review follow-ups. We read every message.

Or email support@sntrvn.space