01 · Messages
Catch up on the messages that matter.
“When is my appointment?”
Ask about appointments or conversations from captured SMS and WhatsApp notifications. Get a summary by person, group, or date, with the source and time range made clear.
StudioSaathi · Private preview
Your personal AI.
With context that stays.
Talk through your day, catch up on captured messages, and ask about what you see. Saathi brings voice, vision, and personal memory into one assistant, so you can pick up a conversation without starting over.
Private preview · AndroidHindi-first voiceCamera understandingPersonal memory
Saathi
One continuous interactionYou
What did Priya say on WhatsApp?
Saathi
I captured three messages from Priya today. The latest, at 4:20 PM, says she will call after dinner.
You
Read this medicine.
Saathicamera · guide
The right edge is cut off. Move the camera slightly left.
Saathivision · remember
I can read Amlodipine, 5 milligrams. Would you like me to repeat that?
You
Log my BP as 128 over 78.
Saathihealth · store
Saved: 128 over 78, measured now.
The daily UI exposes one primary control.
Made for everyday use
Speak naturally.
Stay in control.
Ask in ordinary speech. Saathi can draw on a captured message, a camera reading, or a detail you previously saved. A simple primary control and spoken responses make the experience accessible, including for older adults and people with low vision.
Message capture depends on the permissions you grant and the content Android makes available. Answers retain their source and time context. Stop, repeat, and correction controls keep you involved when a request needs clarification or an observation is incomplete.
Five journeys. One conversation.
Move between messages, the camera, and saved details in a conversation that carries context across questions and sessions.
02 · Vision
Read what is in front of you.
“Read this medicine for me.”
Point the camera at a label and hear the visible text. Saathi guides you when the image is blurred, cropped, or obscured by glare, and keeps the reading in context for follow-up questions.
03 · Vision
Identify the note in hand.
“What denomination is this?”
The same camera contract handles currency: acquire enough visual evidence, answer the denomination aloud, and refuse to turn an uncertain frame into a confident financial fact.
04 · Memory
Remember the details you want to keep.
“Log my BP as 128 over 78.”
Save a personal reading by voice and ask for it later, along with when it was recorded. This is logging and recall of a value you provide, rather than a measurement or medical interpretation.
05 · Dialogue
Keep the conversation on your terms.
“Stop.” · “Repeat that.” · “That was wrong.”
Use stop, repeat, and correction controls when you need them. Continue a thought across turns, and let Saathi ask for clarification when the request is incomplete or ambiguous.
System architecture
Personal context
that stays connected.
Captured observations become timestamped events. Memories record what happened; an operational state model tracks what is current. Plans and answers retain the evidence behind them for review.
Model providers sit behind narrow interfaces for reasoning, vision, speech, and embeddings. The durable product does not disappear when one model is replaced by another.
- 01Perceive
Phone edge
Microphone · CameraX · SMS receiver · Android notification listener
- 02Deliver
Reliable ingress
SQLite outbox · Signed device identity · Retry · Stable event IDs
- 03Remember
Durable state
Append-only event log · Memory · Current-truth projection · Provenance
- 04Decide
Agent loop
Skill routing · Planning · Safety checks · Clarification · Explanation
- 05Act
Accessible response
Speech · Camera guidance · Recall · Permissioned device actions
- 06Prove
Multivon evals
Outcome · Trace · Memory · Vision · Safety · Reliability over trials
When the network disappears.
Capture
The receiver writes to the phone’s private SQLite outbox before returning.
Recover
A foreground service retries while stable IDs prevent duplicate memories.
Explain
A heartbeat reports permission, service, and queue health instead of claiming perfect coverage.
Saathi × Multivon
The case study is also an eval target.
Component accuracy is not the same as a dependable agent. Multivon grades the completed journey: what the agent remembered, which tools it chose, whether its visual answer was grounded, and whether it stopped safely.
Explore MultivonPreview taskFailure that mattersEvaluation signal
Message and appointment recall
Wrong sender, wrong date, missing provenance, or a summary with no time boundary.
AgentMemoryEval · Faithfulness
Guided label and currency reading
Premature capture, invented visual detail, or no recovery from glare and cropping.
VQAFaithfulness · TaskCompletion
Interrupt, repeat, and correction
Assistant continues, repeats the wrong turn, or triggers an action after “stop.”
Conversation rules · ToolCallNecessity
Blood-pressure memory
Digits are transposed, a different user’s value leaks in, or restart loses the reading.
AgentMemoryEval · Exact-value checks
Offline background capture
An event disappears, arrives twice, or stale sync health is presented as current.
Deterministic invariants · pass^k
How we report reliability
The automated server and app contracts exist today. Visual evaluation in Multivon is experimental, and end-to-end field numbers will be published after evaluation on real devices—with sample size, conditions, failures, and confidence intervals attached.
Private preview
A closer look at the preview.
The Android preview brings together the capabilities below. Device compatibility, voice interaction, and data controls remain part of the preview evaluation; published field results are not yet available.
Included in the preview
- A one-button daily surface with a deliberately separate caregiver view.
- SMS backfill and notification capture through an app-private durable outbox.
- Dated WhatsApp summaries by person, group, day, or inclusive date range.
- Guided camera sessions for medicine labels and currency notes.
- User-scoped blood-pressure logging, recall, and restart-safe event replay.
- Server-side transcripts, evidence, sync health, and explanation traces.
Preview scope and current limits
- True acoustic barge-in while speech is playing; today capture is muted to prevent self-transcription.
- Battery and background-service behaviour across preview devices.
- Real medicine packaging and currency under glare, low light, and partial framing.
- WhatsApp completeness: notification access can only retain content Android exposes after permission is granted.
- A final retention, export, deletion, and at-rest encryption policy before family deployment.
Request private preview access
A little less searching.
A little more continuity.
Tell us how you would use Saathi, your Android device, and the language you prefer. We’ll follow up about preview availability and what the current experience supports.