Will It Run AI

Apple Silicon · 128 GB unified memory · April 2026

Best Local LLMs for Mac Studio M2 Ultra 128GB (April 2026)

343 models ranked for Mac Studio M2 Ultra 128GB. Top picks for coding, chat, and writing with exact fit, recommended quantization, and estimated tokens per second. Updated April 2026.

Top 10 local LLMs for Mac Studio M2 Ultra 128GB

1
Q4_K_M90.4 GB28.9 tok/sNeeds offloadFull fit report →
SExcellent
2
Q4_K_M90.0 GB31.3 tok/sNeeds offloadFull fit report →
SExcellent
3
Q4_K_M34.1 GB70.2 tok/sRuns greatFull fit report →
SExcellent
4
Q4_K_M38.1 GB59.0 tok/sRuns greatFull fit report →
SExcellent
5
Q4_K_M33.8 GB72.6 tok/sRuns greatFull fit report →
SExcellent
6
Q4_K_M64.3 GB31.3 tok/sRuns greatFull fit report →
SExcellent
7
Q4_K_M92.4 GB6.7 tok/sNeeds offloadFull fit report →
SExcellent
8
Q4_K_M36.8 GB64.1 tok/sRuns greatFull fit report →
SExcellent
9
Q4_K_M34.1 GB70.2 tok/sRuns greatFull fit report →
SExcellent
10
Q4_K_M21.3 GB90.9 tok/sRuns greatFull fit report →
SExcellent

Best picks by workload

Best for coding

  1. 1. Qwen 3.5 122B A10BQ4_K_M · 91.6 GB
  2. 2. Mistral Small 4 119BQ4_K_M · 92.7 GB
  3. 3. Qwen3-Coder 30B A3B InstructQ4_K_M · 34.8 GB

Best for chat & general use

  1. 1. Qwen 3.5 122B A10BQ4_K_M · 90.4 GB
  2. 2. Mistral Small 4 119BQ4_K_M · 90.0 GB
  3. 3. Qwen3-Coder 30B A3B InstructQ4_K_M · 34.1 GB

Best for writing

  1. 1. Qwen 3.5 122B A10BQ4_K_M · 90.4 GB
  2. 2. Mistral Small 4 119BQ4_K_M · 90.0 GB
  3. 3. Qwen3-Coder 30B A3B InstructQ4_K_M · 34.1 GB

Frequently asked questions

What is the best local LLM for Mac Studio M2 Ultra 128GB?

Qwen 3.5 122B A10B ranks highest overall for Mac Studio M2 Ultra 128GB: ~90.4 GB at Q4_K_M with ~29 tok/s. Best for coding: Qwen 3.5 122B A10B. Best for writing: Qwen 3.5 122B A10B.

How many models can I run on Mac Studio M2 Ultra 128GB (128 GB)?

343 models in our catalog fit on Mac Studio M2 Ultra 128GB at the recommended quantization for each.

Is 128 GB enough for local LLMs in 2026?

Yes, 128 GB unified memory comfortably runs 27B-class models at Q6 and 35B-A3B MoE at Q4-Q5. You have meaningful headroom for long context and agentic workloads.

What is the best local LLM for coding on Mac Studio M2 Ultra 128GB?

Qwen 3.5 122B A10B — runs at Q4_K_M (~91.6 GB, ~29 tok/s). Qwen 3 Coder variants specifically dominate coding benchmarks at this hardware tier.

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