Keating 2.5 is the release where the teaching interface becomes more multimodal without becoming less inspectable. Voice, search, mobile, translation, and artifact rendering all now share the same bias: preserve the learner's trail, expose durable objects, and keep the chat surface from turning into a pile of disconnected widgets.
Realtime runtime
The browser runtime now includes GPT Realtime 2.1 full-duplex voice on top of canonical conversation events. Interruptions, barge-in, parallel tool-call lifecycles, reconnect state, and privacy-safe telemetry all flow through the same durable event vocabulary used by ordinary text sessions.
Provider capabilities are also more explicit. OpenAI, Google, and Anthropic search paths use provider-native tools, MiniMax has an explicit client adapter, and untrusted search provenance is kept visible instead of being treated like ordinary tutor knowledge.
Native mobile and local storage
This release adds a native Android app under mobile/, built with React Native and Expo rather than as a web view. It keeps provider keys in Android Keystore, persists lessons on-device, and brings the portable Keating pedagogy engine to offline-capable plans, maps, and quizzes. Mobile storage is intentionally local-only in this release; it does not join the desktop P2P mesh yet.
Canadian localization
The web and mobile shells now have General Translation wiring for Canadian English and French Canadian. The web navigation/footer shell uses the GT provider and local bundles, while mobile letsgt-react-native resolve the device locale so a French-Canadian phone can actually activate fr-CA once translations are generated.
Reasoning and artifact UX
Reasoning display is now separate from reasoning effort. A learner can keep model thinking enabled while hiding reasoning cards entirely, and visible reasoning now has an explicit disclosure arrow plus the same Markdown, math, table, and code rendering as assistant messages.
Artifact previews are calmer too. The chat can keep only one inline artifact preview open at a time, so new lesson plans, concept maps, animations, decks, and verification reports replace the previous preview instead of stacking indefinitely. The artifact button in the chat nav also behaves like a real toggle now: click once to open the browser or side panel, click again to close it.
Verification
The release was checked with the mobile unit/type/export path, web settings and chat parser tests, the full web test suite, typechecking, Vite and Nitro builds, and the version synchronizer used by the release pipeline.