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Brilliant

EDTECH
Velocity3.8

Interactive math, science, and computer science learning platform.

brilliant.org ↗

Brilliant launches Koji, a graphical AI tutor — its first product move in 15 months.

ai tutoringlearning gamesinteractive mathedtechgraphical learning
◆Current state
Brilliant ships infrequent, essay-style blog posts that read as much like product manifestos as changelog. The most recent post announces Koji, framed as a graphical AI tutor — the first new headline product in this ten-entry window. The rest of the timeline is course-design philosophy around algebra, programming, and learning-game evals.
◆Where it's heading
The throughline across these posts is the same: lean on visual, game-like interaction and use AI to scale the tutor-style feedback loop the team keeps writing about. Koji is the first concrete productization of that thesis after a long stretch of essays describing the approach. Cadence remains slow, which suggests Brilliant publishes only when something is meaningfully different.
◆Prediction
Expect Koji to roll out across more subjects following the same algebra-then-CS pattern earlier posts described, and for future entries to attach Koji-specific course launches rather than announce new products from scratch.

◆Recent moves

  1. 4mo ago

    Brilliant introduces Koji, a graphical AI tutor

    ⚡ SPARK

    Brilliant introduces Koji, positioned as a graphical AI tutor. After 15 months of method-focused blog posts about evals and game-like feedback loops, this is the team naming an actual product around that approach.

    View source ↗
  2. 1y ago

    When “almost right” is catastrophically wrong: Evals for AI learning games

    A methods post on how the team builds evals for AI learning games, arguing that 'almost right' answers are uniquely bad in physics-style instruction. Sets the evaluation discipline that later shows up productized in Koji.

    View source ↗
  3. 1y ago

    Hand-crafted, machine-made: How we make learning games with AI

    Behind-the-scenes piece on combining human-authored course design with AI tooling. Continues the team's narrative that AI accelerates production but doesn't replace pedagogical craft.

    View source ↗
  4. 1y ago

    Programming in 2025: A preview of our upcoming CS courses

    Preview of upcoming CS courses framed around LLM-assisted coding as the new entry point. Suggests Brilliant's curriculum strategy is being rebuilt around AI-native learners rather than retrofitting old syllabi.

    View source ↗
  5. 1y ago

    One subject, three lenses: A multifaceted look at Algebra

    An algebra-pedagogy essay arguing for multiple visual representations of the same concept. Sets up the visual-first interaction model that Koji later embodies.

    View source ↗
  6. 1y ago

    Game on: Solving for x-citement with interactive Algebra

    Launch of interactive algebra content framed as competing with mobile games for attention. Same game-vs-candy framing the team keeps returning to as their design north star.

    View source ↗