Best Local AI Models for Mac Studio

Mac Studio configurator

Apple list prices checked 2026-10-21 · · speeds are engine estimates

01

Chip.

Bandwidth sets generation speed.

Generation speed follows memory bandwidth in this estimate; GPU cores speed up prompt reading.

02

Processing power.

What the extra cores change.

The 40-core GPU ships with 48 / 64 / 128 GB, the 32-core with 36 GB: generation about 29% faster (460 GB/s vs 614 GB/s), prompt reading about 25% faster (ModelFit estimate, partly scaled by GPU core count).

Speeds for Nemotron 3.5 Lightning 30B-A3B, est. Prompt reading is scaled from llama.cpp's 7B Q4_0 prompt speed (PP512): source.

03

Memory.

Sets which models fit at 8k context.
04

Storage.

Where your models live.
Inside the MacApple list price

Outside the MacAmazon kit · enclosure + drive

Local models are big: your 10 best-ranked models take about 239 GB (est.), and every new release adds more. 1TB holds that library 4 times over.

  • EnclosureUGREEN Thunderbolt 5 NVMe enclosureThunderbolt 5, 80Gb/s · Intel JHL9480 · cooling fan · M.2 2280 up to 8TB
    Amazon
  • DriveSamsung 990 PRO 1TBPCIe 4.0 NVMe · M.2 2280 · no heatsink, fits the enclosure
    Amazon
Add both to Amazon cart

The M5 Max has Thunderbolt 5, so the kit uses a Thunderbolt 5 enclosure.

Inside storage needs no cable or dock and goes wherever the Mac goes. Storage does not change generation speed: a model is read into memory once, then runs from there.

Keep Ollama's models on the drive
Name the drive Models, run this, then restart Ollama:launchctl setenv OLLAMA_MODELS "/Volumes/Models/ollama"Ollama FAQ

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05

Use.

What will you run?
Use case
Min speed
Must run
Table 1Ranking for this configuration · follows the Use step

Best local models for Mac Studio M5 Max · 64 GB

20 of the top 20 · all uses · any speed · tok/s are engine estimates, not measurements

Context
Runtime
Qwen3.6 35B-A3B 38.7 GB + 0.2 GB KV of 48.0 GB usable 9.1 GB free at 8k

Ollama pulls and runs a model from its library with one ollama run line. oMLX is a menu bar app and server for Apple Silicon with continuous batching, a KV cache kept hot in RAM and cold on SSD across restarts, and an OpenAI and Anthropic compatible API on localhost:8000.

ModelQuantFitRun
1est. 103 tok/s · Runs well35B moe 3B38.7 GBRuns well32.0103
2est. 103 tok/s · Runs well30B moe 3B25.4 GBRuns well21.8103
3est. 75 tok/s · Runs well26B moe 4B28.1 GBRuns well29.275
4est. 18 tok/s · Runs well27B27.1 GBRuns well44.418
5est. 166 tok/s · Runs well35BQ4_K_M21.2 GBRuns welln/a166
6est. 107 tok/s · Runs well30B moe 3BQ6_K24.0 GBRuns welln/a107
7est. 153 tok/s · Runs well33B moe 3BQ4_K_M20.3 GBRuns well23.9153
8est. 116 tok/s · Lots of room30B moe 3BQ4_K_M19.0 GBLots of room23.0116
9est. 103 tok/s · Runs well35B moe 3B38.7 GBRuns well30.5103
10est. 24 tok/s · Runs well31B20.0 GBRuns well32.724
11est. 32 tok/s · Lots of room24BQ4_K_M15.2 GBLots of roomn/a32
12est. 18 tok/s · Runs well27B30.0 GBRuns well35.218
13est. 116 tok/s · Lots of room30B moe 3BQ4_K_M19.0 GBLots of room21.5116
14est. 27 tok/s · Lots of room29.3BQ4_K_M16.5 GBLots of room23.327
15est. 59 tok/s · Lots of room12B8.0 GBLots of room21.659
16est. 39 tok/s · Runs well46.7B moe 13BQ4_K_M30.0 GBRuns welln/a39
17est. 178 tok/s · Lots of room24B moe 2BQ4_K_M14.0 GBLots of roomn/a178
18est. 18 tok/s · Runs well27B27.1 GBRuns well33.518
19est. 56 tok/s · Lots of room9B10.7 GBLots of room24.256
20est. 12 tok/s · Runs well70BQ4_K_M42.0 GBRuns well13.812

Click a row to map its memory in Fig. 1Fit counts the KV cache at 8k context (fp16; a q8_0 cache halves it)Tok/s: Ollama or llama.cpp on Metal, est.One row per model; the quant chips switch between its builds that fitQuality: LLM Stats Score · Data by LLM StatsOllama commands are registry-verified; a model without an Ollama tag runs via llama.cpp

Fig. 1cSpeed feel · any model on this configuration

See how fast it feels

Qwen3.6 35B-A3B (Q8), already loaded in memory: ~0.2s to read the prompt (instant), then it writes at est. 103 tok/s, typical error 10%.

zsh · ollama run qwen3.6:35b-a3b-q8_0est. 103 tok/s

~ $ ollama run qwen3.6:35b-a3b-q8_0

# Press Send to run the fixed message below.

# fixed message, the same for every model

>>> Summarize these meeting notes in one short paragraph: what was decided, and who does what next.

[meeting-notes.txt]
Weekly sync, support tools team
Attendees: Maya (lead), Jonas, Priya, Tom, Elena
Agenda: local drafting assistant pilot, knowledge base cleanup, customer feedback survey, on-call rota, next steps

1. Local drafting assistant pilot
- Maya recapped the goal: agents draft replies with an assistant that runs on the team's own Macs, so customer emails never leave the building and nothing depends on an outside service being up.
- Jonas ran the pilot for two weeks on four machines. Agents used it for first drafts on roughly a third of tickets. Most drafts needed light edits. A few needed a full rewrite, mostly billing questions where the model guessed at policy instead of saying it did not know.
- Priya said the biggest complaint was the wait before the first word on long tickets. Short tickets felt instant. Tickets with a long email thread pasted in took several seconds before anything appeared, and agents read that as the tool being stuck. Two agents restarted the app because of it.
- Tom suggested trimming the thread to the last three messages before sending it to the model. Elena worried that would drop context the customer refers back to, like an order number from the first email. Agreed to test both on the same set of tickets before choosing.
- Jonas said the speed once the reply starts was fine on every machine. Agents read slower than the model writes, so nobody asked for faster output. The only request was a visible sign that the model is reading, so people stop restarting it.
- Memory: the oldest machine, the one with the least memory, could not keep the model loaded next to the browser and the ticketing app. It swapped and slowed down badly by mid-morning. The other three machines had no issue all day.
- Priya asked whether a larger model would fix the billing guesses. Jonas thought not: the model guesses because the policy text it needs is missing or contradictory, and a bigger model would guess more fluently, not less.
- Decision: keep the current model size for now. Revisit only after the knowledge base cleanup, and only if the edit rate on billing drafts is still high.

2. Knowledge base cleanup
- Elena found about forty articles that contradict each other on refund windows and plan changes. These are the likely source of the billing guesses.
- Priya proposed one owner per section, with a review date on every article so stale pages show up on their own instead of during an angry ticket.
- Agreed: Elena owns billing and refunds, Priya owns accounts and login, Tom owns shipping and returns. Each owner archives duplicates, merges the rest, and flags anything that needs a policy decision from Maya.
- Jonas will add the cleaned articles to the assistant's reference folder once each section is signed off, not before. Mixing old and new versions would make the guessing worse.
- Tom asked for a template for new articles. Elena will share the one billing already uses.

3. Customer feedback survey
- Priya shared the quarterly survey results. Response time scores went up since the last quarter, and the free-text comments mention faster first replies more than once.
- Several comments still complain about being asked for the same order details twice. Elena thinks this happens when a ticket moves between agents and the notes field is left empty.
- Agreed: the handover checklist gets one new line, fill in the notes field before reassigning a ticket. Tom will update the checklist and post it in the team channel.
- Maya wants the next survey to ask one question about reply quality, not only speed, so the team can see whether the assistant drafts change how customers rate answers.

4. On-call rota
- Two people asked to swap weeks in November. Maya approved both swaps.
- Tom raised that weekend coverage gets thin when two people are on leave at the same time. Agreed that leave requests go in the team channel at least two weeks ahead, and Maya checks the rota before approving.
- No change to escalation rules. The escalation doc is still correct.

5. Next steps
- Jonas: run the trimmed thread versus full thread test on fifty past tickets and report the wait before the first word and the edit rate for each.
- Jonas: add a reading indicator to the assistant panel so agents can see the model is working on a long ticket.
- Elena, Priya, Tom: finish their knowledge base sections and send Maya the open policy questions.
- Maya: ask IT whether the oldest machine can get more memory or should be replaced at the next refresh.
- Everyone: log any draft that invents a policy, with the ticket link, in the shared sheet.
- Next sync: same time next week. Maya sends the agenda the day before.

ModelFit engine estimate, not a measured benchmark. Loading the model is not included. Real speed varies with thermals, runtime, and KV-cache settings.

Fig. 2A / B · what the other configuration changes

What B unlocks

Compare with any Mac or GPU
SpecA · yoursBChange
ConfigurationM5 Max 40C · 64 GBM5 Max 40C · 128 GB
Apple list price, base storage$3,499$5,099+$1,600
Memory bandwidth614 GB/s614 GB/ssame
Usable for models48.0 GB108.8 GB+60.8 GB
Models that run at 8k101116+15
Top pickQwen3.6 35B-A3B
est. 103 tok/s
Qwen3.5 122B-A10B Instruct
est. 59 tok/s
Max context, top pick256k, max256k, max
B runs 9 models that A cannot at 8k
Qwen3.8-Flash-Next125Best. 77 tok/s
Ling-3.0-flash124Best. 97 tok/s
Devstral 2 123B123Best. 7 tok/s
Qwen3.5 122B-A10B Instruct122Best. 59 tok/s
Nemotron 3 Super 120B-A12B120Best. 44 tok/s
Laguna S 2.1118Best. 49 tok/s
GPT-OSS 120B117Best. 92 tok/s
Llama 4 Scout109Best. 41 tok/s
Qwen3-Next 80B-A3B80Best. 90 tok/s

Mac Studio is the workstation for local AI. The 2026 M5 Ultra generation doubles down: up to 512GB of unified memory at 1.2 TB/s memory bandwidth (the 512GB model ships from late October 2026; 96GB and 256GB shipped September 22), enough to run 120B-class MoE models and 70B dense models entirely in memory at production speeds. M5 Max configs (36-128GB) cover the 27B-70B sweet spot.

Quick answer

On a Mac Studio, the best local LLM ranges from Gemma 4 26B-A4B at 32GB to Llama 4 Maverick at 512GB. That spans 32GB to 512GB configurations, where 120 of ModelFit's 121 local models fit comfortably at the top tier. Set your exact chip and memory in the configurator above for its ranked list.

Sizing rule: a local model needs about 0.6 GB of unified memory per billion parameters at Q4, and ModelFit budgets roughly 70% of each configuration's RAM. At 32GB the best fit is Gemma 4 26B-A4B (~16GB); at 512GB it is Llama 4 Maverick (~245GB), reaching est. 76 tok/s, typical error 10%. Mid-range configurations trade model size for speed between those two points. What it will not run: dense models beyond the top tier's memory budget stay on a cloud API, and the 32GB tier caps out far earlier.

→ Set your exact chip and memory in the configurator above for its ranked models and one-line install command.

Entry (M1 Max, 32GB)
Gemma 4 26B-A4B
Top (M5 Ultra, 512GB)
Llama 4 Maverick
Decode speed range
est. 60-76 tok/s, typical error 10%

Speeds are ModelFit estimates from chip bandwidth and model size, not measured benchmarks. Typical error: the median gap between the ModelFit speed model and measured runs on hardware the model was not fitted on, for this backend and model size.

Cite this page: ModelFit, Best Local AI Models for Mac Studio, https://modelfit.io/mac-studio/, updated October 2026, CC BY 4.0.

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FAQ

Frequently asked questions

What is the best AI model for Mac Studio?

Mac Studio is the workstation for local AI. The 2026 M5 Ultra generation doubles down: up to 512GB of unified memory at 1.2 TB/s memory bandwidth (the 512GB model ships from late October 2026; 96GB and 256GB shipped September 22), enough to run 120B-class MoE models and 70B dense models entirely in memory at production speeds. M5 Max configs (36-128GB) cover the 27B-70B sweet spot. On the default Apple M5 Max with 64GB RAM, Qwen3.6 35B-A3B is our top pick, handling models up to about 35B parameters at this RAM. Higher-RAM Mac Studio configurations, including Pro and Max tiers where available, reach into the 70B-120B+ parameter range.

What size models fit on Mac Studio?

With 64GB unified memory, Mac Studio runs models up to about 35B parameters comfortably. Strong picks include Qwen3.6 35B-A3B, Nemotron 3.5 Lightning 30B-A3B, Gemma 4 26B-A4B. Higher-RAM configurations, including Pro and Max tiers where available, reach into the 70B-120B+ parameter range. Use the ModelFit wizard to match your exact RAM and chip.

How fast is local AI on Mac Studio?

On the Apple M5 Max with optimized, quantized models, expect est. 103 tok/s, typical error 10%. The Mac Studio M5 Ultra (2026) restores the big-memory Mac: 512GB unified memory at 1.2 TB/s bandwidth, roughly 50% above the M3 Ultra (the 512GB model ships from late October 2026; 96GB and 256GB shipped September 22). In ModelFit estimates that is ~153 tok/s on a 7B Q4 reference and comfortable speeds on 120B-class MoE models like gpt-oss-120b, entirely in memory. Pre-orders opened 2026-08-26, shipping September 22. (Speeds are ModelFit estimates, not measured benchmarks, and vary with model size and quantization.)

Real-world calibration

Have this hardware? Share a measured run.

Measure a fixed Ollama reference model on your machine. This separate, opt-in contribution does not change ModelFit's third-party SWE-Bench leaderboard; results appear on the measured-speed leaderboard after the next site update.

$ npx -y @wecko-ai/modelfit bench --submit --cleanup