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Can a Mac Studio M5 Max (40c GPU) 128GB run Kev 4B (decision)?

Yes. Kev 4B (decision) fits in fast memory on Mac Studio M5 Max (40c GPU) 128GB at Q8_0 (5.3 GB needed, 96.0 GB usable), about 109 tok/s (estimate).

Hardware: Mac Studio M5 Max (40c GPU) 128GB · Model: Kev 4B (decision)

Mac Studio M5 Max (40c GPU) 128GB has 128 GB of unified memory and 614 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 96.0 GB. Kev 4B (decision) (4B, Kev) at Q8_0 is a 4.5 GB download and needs 5.3 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size4.5 GB
Memory needed5.3 GB
Usable fast memory96.0 GB
Fitfits in fast memory
Estimated speed~109 tok/s (estimate)
Commandollama run kev:4b-q8_0
Open Mac Studio M5 Max (40c GPU) 128GB in the checker

Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.

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