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[ARTICLE · art-60734] src=the-decoder.com ↗ pub= topic=artificial-intelligence verified=true sentiment=↑ positive

Bonsai 27B is a full open reasoning model that fits on an iPhone

PrismML has compressed a 27-billion-parameter AI model to under 4 GB, enabling it to run on an iPhone while retaining 90 percent of its original performance. Apple is reportedly testing the compression technology, which could advance on-device AI capabilities.

read1 min views1 publishedJul 15, 2026

PrismML has compressed a 27-billion-parameter AI model to under 4 GB, small enough to run on an iPhone. In the company's own benchmarks, the smallest version keeps 90 percent of the original performance, with math and coding scores barely affected. Apple is reportedly already testing the compression technology, which could help it close the gap in on-device AI.

The article Bonsai 27B is a full open reasoning model that fits on an iPhone appeared first on The Decoder.

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