Can Yi 1.5 6B Chat run on MacBook Air M4 24GB?

YES — Runs Great

C47Usable

Estimated — low-sample bucket· few comparable runs

Yi 1.5 6B Chat needs ~7.9 GB VRAM. MacBook Air M4 24GB has 17.3 GB. With Q4_K_M quantization, expect ~22 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: Very lowStack: StandardBottleneck: Memory bandwidth

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 7.9 GB, 21.7 tok/s, Runs well

7.9 GB required17.3 GB available

46% VRAM used

Fit status

Runs well

Decode

21.7 tok/s

TTFT

8914 ms

Safe context

230K

Memory

7.9 GB / 17.3 GB

Memory breakdown

Weights3.7 GB

KV Cache0.7 GB

Runtime0.9 GB

Headroom2.6 GB

See how fast it feels

See how fast it feelsYi 1.5 6B Chat on MacBook Air M4 24GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
  - Full privacy: your prompts never leave your machine
  - No per-token cost or rate limits
  - Works offline once the model is downloaded
  - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

  Model size     Q4 (4-bit)    Q8 (8-bit)    FP16
  7B params      ~4.3 GB       ~7.5 GB       ~14 GB
  13B params     ~7.9 GB       ~13.9 GB      ~26 GB
  70B params     ~42.7 GB      ~74.9 GB      ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 21.7 tok/s decode · 8.9s TTFT (warm) · 54 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Shared-memory contention still exists

The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Runs well	21.7 tok/s	4862 ms	230K
Coding	C	Runs well	21.7 tok/s	8914 ms	230K
Agentic Coding	C	Runs well	21.7 tok/s	12966 ms	230K
Reasoning	C	Runs well	21.7 tok/s	10535 ms	230K
RAG	C	Runs well	21.7 tok/s	16208 ms	230K

Quantization options

How Yi 1.5 6B Chat (6B params) fits at each quantization level on MacBook Air M4 24GB (17.3 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.3 GB	Low	C46
Q3_K_S	3	2.9 GB	Low	C46
NVFP4	4	3.4 GB	Medium	C47
Q4_K_M	4	3.7 GB	Medium	C47
Q5_K_M	5	4.3 GB	High	C48
Q6_K	6	4.9 GB	High	C48
Q8_0	8	6.4 GB	Very High	C49
F16Best for your GPU	16	12.3 GB	Maximum	C51

Get started

Copy-paste commands to run Yi 1.5 6B Chat on your machine.

Run

lms load hf-maziyarpanahi--yi-1-5-6b-chat-gguf && lms server start

升级选项

能流畅运行 Yi 1.5 6B Chat 的硬件

MacBook Pro M2 Max 32GB经济之选

32 GB Unified (+8)400 GB/s (+280)

Raises estimated decode speed by about 192%.63.4 tok/s 解码

Raises estimated decode speed by about 192%.

Adds memory headroom for longer context windows and future model growth.

~$1,999 MSRP

MacBook Pro M2 Pro 32GB最佳性价比

32 GB Unified (+8)200 GB/s (+80)

Raises estimated decode speed by about 76%.38.3 tok/s 解码

Raises estimated decode speed by about 76%.

Adds memory headroom for longer context windows and future model growth.

~$1,999 MSRP

MacBook Pro M4 Max 36GBApple 升级

36 GB Unified (+12)410 GB/s (+290)

Raises estimated decode speed by about 254%.76.9 tok/s 解码

Raises estimated decode speed by about 254%.

Adds memory headroom for longer context windows and future model growth.

~$2,499 MSRP

Frequently asked questions

Can MacBook Air M4 24GB run Yi 1.5 6B Chat?

Yes, MacBook Air M4 24GB can run Yi 1.5 6B Chat with a C grade (Runs well). Expected decode speed: 21.7 tok/s.

How much VRAM does Yi 1.5 6B Chat need?

Yi 1.5 6B Chat (6B parameters) requires approximately 7.9 GB of memory with Q4_K_M quantization.

What is the best quantization for Yi 1.5 6B Chat?

The recommended quantization for Yi 1.5 6B Chat is Q4_K_M, which balances quality and memory efficiency.

What speed will Yi 1.5 6B Chat run at on MacBook Air M4 24GB?

On MacBook Air M4 24GB, Yi 1.5 6B Chat achieves approximately 21.7 tokens per second decode speed with a time-to-first-token of 8914ms using Q4_K_M quantization.

Can MacBook Air M4 24GB run Yi 1.5 6B Chat for coding?

For coding workloads, Yi 1.5 6B Chat on MacBook Air M4 24GB receives a C grade with 21.7 tok/s and 230K context.

What context window can Yi 1.5 6B Chat use on MacBook Air M4 24GB?

On MacBook Air M4 24GB, Yi 1.5 6B Chat can safely use up to 230K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

Is unified memory on MacBook Air M4 24GB as fast as VRAM for Yi 1.5 6B Chat?

Not always. MacBook Air M4 24GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.

See all results for MacBook Air M4 24GB See all hardware for Yi 1.5 6B Chat

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