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Can a M1 Pro 32GB run Laya 421M (Convai, decision)?

Yes. Laya 421M (Convai, decision) fits in fast memory on M1 Pro 32GB at BF16 (1.5 GB needed, 24.0 GB usable), about 190 tok/s (estimate).

Hardware: M1 Pro 32GB · Model: Laya 421M (Convai, decision)

M1 Pro 32GB has 32 GB of unified memory and 200 GB/s of memory bandwidth. M2 Pro 32GB has the same memory and bandwidth, so the fit numbers match; this page is M1 Pro 32GB. The checker leaves macOS a share of unified memory, so Ollama can use 24.0 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 memory24.0 GB
Fitfits in fast memory
Estimated speed~190 tok/s (estimate)
Commandollama run laya:421m-english-bf16
Open M1 Pro 32GB 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.

A project by OnDevice Labs · llms.txt