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Can a M2 Ultra 128GB run Nimble 9B (Bespoke Labs, decision)?

Yes. Nimble 9B (Bespoke Labs, decision) fits in fast memory on M2 Ultra 128GB at Q8_0 (10.6 GB needed, 96.0 GB usable), about 67 tok/s (estimate).

Hardware: M2 Ultra 128GB · Model: Nimble 9B (Bespoke Labs, decision)

M2 Ultra 128GB has 128 GB of unified memory and 800 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 96.0 GB. Nimble 9B (Bespoke Labs, decision) (9B, Bespoke Labs) at Q8_0 is a 9.5 GB download and needs 10.6 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size9.5 GB
Memory needed10.6 GB
Usable fast memory96.0 GB
Fitfits in fast memory
Estimated speed~67 tok/s (estimate)
Commandollama run nimble:9b-q8_0
Open M2 Ultra 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.

A project by OnDevice Labs · llms.txt