Can I run OpenELM-1_1B-Instruct on a Mac with 32 GB?

Yes

Its published weights (2.16 GB) fit in the 21.3 GB a Mac with 32 GB can use, with room for an unknown amount of context.

hf download apple/OpenELM-1_1B-Instruct

Files and context on Mac with 32 GB

Each file of OpenELM-1_1B-Instruct (and of GGUF versions the site has analyzed), and how much context fits next to it, with the context cache in 16-bit or 8-bit.

OpenELM-1_1B-Instruct on other hardware

Popular models that run on Mac with 32 GB

Assumes 67% of the Mac's memory is usable (macOS's default limit for the GPU; it can be raised) and at least 4K tokens of context for one conversation, with the context cache in 16-bit unless noted. Fits leaves at least 20% of that memory for context; Tight leaves less.