---
id: "2026-05-28-sesame-ios-app"
url: "https://postcutoff.com/e/2026-05-28-sesame-ios-app/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2026-05-28"
date_precision: day
category: product
importance: 3
confidence: high
status: [Confirmed]
sources: 3
editor: human editor
human_review: null
version: "2026-10-04"
---

As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-05-28-sesame-ios-app/

# Sesame launches its voice-companion iOS app in public preview

Full title: Sesame launches its voice-companion iOS app (Maya, Miles, Simone, Charlie) in public preview

Sesame, the Oculus co-founders' conversational-voice startup behind the viral Maya/Miles demo and the open CSM-1B model, released a free public-preview iOS app on 2026-05-28 in 39 countries. It has four voice agents (Maya, Miles, Simone, Charlie), each with its own personality and memory. An Android preview is planned and smart glasses are targeted for 2027.

## Key facts
- Four agents: Maya, Miles, Simone, Charlie; 39 countries; free at launch; possible waitlist
- Company raised a $250M Series B (Oct 2025, Sequoia and Spark)
- Open model: sesame/csm-1b (Apache-2.0, March 2025)

## What happened

After a year of web demos and a closed beta, Sesame shipped its natural-sounding voice companions as a consumer iPhone app.

## Why it matters

Sesame's early-2025 demo reset expectations for conversational voice realism. The app tests whether voice-first companions become a daily habit before Sesame's planned glasses hardware.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 28 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): in its training data
- Gemini 4 Hydrogen (training cutoff March 2026): 58 days after its cutoff
- Grok 4.7 (training cutoff May 2026): in its training data

## Sources

1. [Sesame](https://www.sesame.com/) (sesame.com, official)
2. [Hugging Face: sesame/csm-1b](https://huggingface.co/sesame/csm-1b) (huggingface.co, code)
3. [TechCrunch: Sesame launches its iOS app](https://techcrunch.com/2026/05/28/sesame-the-conversational-ai-startup-from-oculus-founders-launches-its-ios-app/) (techcrunch.com, press)

## Changes

- 2026-09-29 (filed): Created

## Related

- Models: [Sesame CSM-1B (Conversational Speech Model)](https://postcutoff.com/m/sesame-csm-1b/) (`sesame-csm-1b`)