> Google’s engineers likely gave up on trying to compile custom attention kernels for Apple’s proprietary tensor blocks iirc.

The AI Edge Gallery app on Android (which is the officially recommended way to try out Gemma on phones) uses the GPU (lacks NPU support) even on first party Pixel phones. So it's less of "they didn't want to interface with Apple's proprietary tensor blocks" and more of that they just didn't give a f in general. A truly baffling decision.

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satvikpendem 8 hours ago | parent [-]

Edge Gallery does have NPU support, it needs you to install the beta of AICore on the Play Store, the Edge Gallery app has instructions.

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the_pwner224 8 hours ago | parent [-]

Huh I didn't see those instructions when I tried it last week. Must not have looked closely enough. I do remember it not having NPU support (confirmed by other people) back at the Gemma 3 launch a while ago.

	▲	andrewblossom 5 hours ago \| parent \| next [-]
		It won't even let you try Gemma4 until you install a beta update to AICore as of today.
	▲	satvikpendem 8 hours ago \| parent \| prev [-]
		Yes they added it for Gemma 4. Maybe it detects whether your phone has an NPU or not too. I have a OnePlus 15 which does have it.