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Can a M3 Max (30c GPU) 36GB run Laya 421M (Convai, decision)?

Yes. Laya 421M (Convai, decision) fits in fast memory on M3 Max (30c GPU) 36GB at BF16 (1.5 GB needed, 27.0 GB usable), about 286 tok/s (estimate).

Hardware: M3 Max (30c GPU) 36GB · Model: Laya 421M (Convai, decision)

M3 Max (30c GPU) 36GB has 36 GB of unified memory and 300 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 27.0 GB. Laya 421M (Convai, decision) (0.421B, Convai Innovations) at BF16 is a 0.84 GB download and needs 1.5 GB with headroom for about 8k tokens.

Best quantBF16
Download size0.84 GB
Memory needed1.5 GB
Usable fast memory27.0 GB
Fitfits in fast memory
Estimated speed~286 tok/s (estimate)
Commandollama run laya:421m-english-bf16
Open M3 Max (30c GPU) 36GB 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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