Yi 1.5 6B Chat needs ~10.4 GB VRAM. MacBook Pro M4 Pro 48GB has 34.6 GB. With Q4_K_M quantization, expect ~53 tok/s.
Operating mode
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.
Select quantization to explore
Fit status
Runs well
Decode
52.8 tok/s
TTFT
3664 ms
Safe context
565K
Memory
10.4 GB / 34.6 GB
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.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 52.8 tok/s | 1998 ms | 565K |
| Coding | C | Runs well | 52.8 tok/s | 3664 ms | 565K |
| Agentic Coding | C | Runs well | 52.8 tok/s | 5329 ms | 565K |
| Reasoning | C | Runs well | 52.8 tok/s | 4330 ms | 565K |
| RAG | C | Runs well | 52.8 tok/s | 6662 ms | 565K |
How Yi 1.5 6B Chat (6B params) fits at each quantization level on MacBook Pro M4 Pro 48GB (34.6 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 2.3 GB | Low | C42 |
Q3_K_S | 3 | 2.9 GB | Low | C43 |
NVFP4 | 4 | 3.4 GB | Medium | C43 |
Q4_K_M | 4 | 3.7 GB | Medium | C43 |
Q5_K_M | 5 | 4.3 GB | High | C43 |
Q6_K | 6 | 4.9 GB | High | C43 |
Q8_0 | 8 | 6.4 GB | Very High | C44 |
F16Best for your GPU | 16 | 12.3 GB | Maximum | C46 |
Copy-paste commands to run Yi 1.5 6B Chat on your machine.
Run
lms load hf-bartowski--yi-1-5-6b-chat-gguf && lms server startUpgrade-Optionen
Raises estimated decode speed by about 59%.
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Raises estimated decode speed by about 59%.
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Raises estimated decode speed by about 59%.
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Yes, MacBook Pro M4 Pro 48GB can run Yi 1.5 6B Chat with a C grade (Runs well). Expected decode speed: 52.8 tok/s.
Yi 1.5 6B Chat (6B parameters) requires approximately 10.4 GB of memory with Q4_K_M quantization.
The recommended quantization for Yi 1.5 6B Chat is Q4_K_M, which balances quality and memory efficiency.
On MacBook Pro M4 Pro 48GB, Yi 1.5 6B Chat achieves approximately 52.8 tokens per second decode speed with a time-to-first-token of 3664ms using Q4_K_M quantization.
For coding workloads, Yi 1.5 6B Chat on MacBook Pro M4 Pro 48GB receives a C grade with 52.8 tok/s and 565K context.
On MacBook Pro M4 Pro 48GB, Yi 1.5 6B Chat can safely use up to 565K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
Not always. MacBook Pro M4 Pro 48GB 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.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/hf-bartowski--yi-1-5-6b-chat-gguf-on-m4-pro-48gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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