Development

A compact image model runs on a phone

development2026-06-01

Claim

PrismML released Bonsai Image 4B, a family of compact diffusion models in 1-bit and ternary variants, the first image model in its class to run on an iPhone.

Reporting date: 2026-06-01 (not necessarily the event date)

Sources

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Welcome to June 1, 2026 (theinnermostloop.substack.com)

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Welcome to June 1, 2026

Actor

PrismML

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Supersedes

A twelve-million-token context claims a thousandth the compute

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A compact image model runs on a phone
Innermost Loop KB — secondary record
Reporting date: 2026-06-01
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-06-01-an-image-model-that-fits-on-a-phone
Claim: PrismML released Bonsai Image 4B, a family of compact diffusion models in 1-bit and ternary variants, the first image model in its class to run on an iPhone.
Attributed sources:
- Welcome to June 1, 2026 — https://theinnermostloop.substack.com/p/welcome-to-june-1-2026
This citation does not imply independent verification of linked-source claims.

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