Feature
Apple Intelligence
Diorama uses Apple Intelligence to summarize your coaching conversations on-device. When your iPhone supports Apple's on-device model, longer chats with Ray are compressed into a short running summary so context is kept without sending your conversation to a server.
Why it matters
Health and training conversations can contain sensitive context. On supported devices, the running summary is created on your iPhone, so the conversation used for that step stays on the phone.
How Diorama uses this
During a longer conversation, Diorama can maintain a short on-device summary of earlier context. Ray uses that summary without resending the full conversation for each turn. If the on-device model is unavailable, the chat continues without this summarization step.
What you can do
As a conversation with Ray grows, Diorama uses Apple's on-device language model to fold older messages into a compact summary. It can retain context such as recent soreness, a race you mentioned, or a sleep pattern without retransmitting the whole thread each turn.
Because the summarization runs through Apple Intelligence on the device itself, the conversation content used to build that summary does not leave your iPhone for this step. For an audience that weighs privacy before installing a health app, that is a deliberate design choice rather than a marketing line.
Notes and limitations
Availability is gated by Apple: the on-device model must be present and ready on your device. When it is not, Diorama keeps working and simply skips the on-device summary step.
The model compresses context. It does not replace clinical judgment or turn Diorama into a diagnostic tool.
Limitations
On-device summarization requires a device and iOS version that support Apple's on-device model; older hardware falls back to non-summarized context. The on-device model summarizes conversation context only. It does not provide medical advice or diagnoses. Summary quality depends on what you have shared; sparse conversations produce sparse summaries.
Diorama
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