Can I run Ternary-Bonsai-27B-gguf on a Mac with 64 GB?

Yes

Its Ternary-Bonsai-27B-Q2_g64 file (7.59 GB) fits in the 48.0 GB a Mac with 64 GB can use, with room for ≈ 4K tokens of context.

ollama run hf.co/prism-ml/Ternary-Bonsai-27B-gguf

Files and context on Mac with 64 GB

Each file of Ternary-Bonsai-27B-gguf (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.

Ternary-Bonsai-27B-gguf on other hardware

Popular models that run on Mac with 64 GB

Assumes 75% 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.