Run Ternary Bonsai 2 27B on M6

Ternary Bonsai 2 27B runs at 13 tok/s (13.3 as recorded) on a 32 GB M6, a community run reported by omlx.ai (MLX, Ternary, 4k context). It needs about 9 GB of unified memory. It is Prism ML's 27.36B dense model, released under the Apache 2.0 licence.

Speed
community13
tok/s
First Token
—
seconds
RAM Needed
9
GB minimum
Engine
MLX
of this figure
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The figure

This is a community run: a real run, reported by its source and linked below. The index records it as given and never adjusts it.

MetricValue
Tokens per secondcommunity13 tok/s
Provenancecommunity run · omlx.ai
QuantizationTernary
EngineMLX
Context4k
Figure dated2026-10-23
Minimum RAM9 GB
Parameters27.36B
Chip bandwidth170 GB/s

Every figure for Ternary Bonsai 2 27B on the M6

Each row as the index holds it, with its source. “Mac RAM” is the memory of the Mac a run used, not the model’s requirement (9 GB). The headline figure follows the reference rule: the lower-median measured plain-decode run at 5 bits or fewer (a run whose quant was not stated counts only when no stated-quant run qualifies), else the estimate; a run marked “not used to anchor estimates” is listed here but never becomes the headline.

SpeedQuantEngineMac RAMContextSourceNote
community13.3 tok/sTernaryMLX32 GB4komlx.ai12-core GPU. oMLX v0.7.1rc1, MTP/DFlash off; prism-ml Ternary-Bonsai-2-27B-mlx-2bit, so it does not anchor; 13.9 GB peak. 10.5 tok/s at 16k.; not used to anchor estimates
Provenance key
sourced
Published figure — vendor or press review
estimated
community
Linked individual run — blog, forum or submission

Setup: run Ternary Bonsai 2 27B on a Mac

Ollama — install it (brew install ollama or the app from ollama.com), then pull the model by its tag, checked on ollama.com on 2026-10-24:

ollama run bonsai-2:27b

MLX — pick a build from Hugging Face’s MLX listings, then run it with its repo id:

pip install -U mlx-lm
mlx_lm.generate --model <repo-id> --prompt "Hello"

Downloads: Ollama page → · model card →

The 13 tok/s figure above came from MLX at Ternary; other runtimes and quants run at different speeds.

Prefer a GUI? LM Studio downloads GGUF and MLX builds in one click. Step by step: install Ollama on a Mac.

Ternary Bonsai 2 27B on other Apple Silicon chips

ChipSpeedQuantEngineBandwidth
M5 Maxsourced47 tok/sPQ2_0llama.cpp614 GB/s
M4 Maxcommunity35 tok/sPQ2_0llama.cpp546 GB/s
M5 Prosourced28 tok/sPQ2_0llama.cpp307 GB/s
M4 Procommunity21 tok/sPQ2_0llama.cpp273 GB/s
M5community12 tok/sTernaryMLX153 GB/s

About Ternary Bonsai 2 27B

Prism ML's ternary (1.58-bit) rebuild of Qwen3.8-27B (Sep 2026, Apache 2.0): ~7 GB, image input, 262K context. It keeps 98% of the base model's average on Prism's 14-benchmark suite but drops on agentic coding (SWE-bench Verified 60.8 vs 80.6 on Prism's scaffold). Ternary decoding is kernel-bound, so the index quotes measured figures only: the vendor's 46.8 tok/s on an M5 Max and 28.1 on an M5 Pro (PrismML llama.cpp fork, PQ2_0), and community runs of 34.5 on an M4 Max and 20.5 on an M4 Pro (same fork) and 43.4 on an M5 Max and 13.3 on an M6 (MLX ternary pack, oMLX); Ollama's bonsai-2:27b ships the 8.3 GB Q2_0 pack.

Apache 2.0 licence · 27.36B · 262K context · LLMCheck capability 37/50 · see its leaderboard rank →

System requirements

Macs with the M6

🛒 Get a Mac that runs Ternary Bonsai 2 27B

Ternary Bonsai 2 27B needs about 9 GB of unified memory. These current Apple Silicon Macs have the headroom to run it comfortably:

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