MiMo V2.5 — Hardware Requirements & GPU Compatibility
ChatFunctionsMiMo V2.5 is a 310.8B-parameter open language model from Xiaomi in the MiMo family. It supports a context window of up to 1,048,576 tokens. At Q4_K_M it needs about 186.85 GB of VRAM — see which GPUs and Macs can run it below.
MiMo V2.5 runs on a 192 GB+ Mac or a datacenter GPU
Best local pick → Mac Pro M2 Ultra (192 GB) · Q4_K_M · 187.6 GB · ~35 tok/s
Macs from 96 GB (IQ2_XXS · ~56 tok/s)
Score 108.3#38 of 106 open#18 of 82 that fit ≤192 GBMIT
Not set up for it?
Reference GPU · RTX 4090 24 GB
Estimates, ±20% · how we estimate
llmrun Composite Score →
108.3
- 90% range 98.2–118.4
- #38 of 106 open models
- #18 of 82 that fit ≤192 GB
Run MiMo V2.5
One recommended way. Every other method, OS and quant is in the step-by-step guide.Each way opens a step-by-step guide for your OS and quant.
Recommended
ollama run hf.co/unsloth/MiMo-V2.5-GGUF:Q4_K_MQ4_K_M runs on one B200 192 GB · 16K context
Download: UD-Q4_K_M/MiMo-V2.5-UD-Q4_K_M-00001-of-00005.gguf190.92 GB + 4 partsunsloth
Ways to runOther ways
each opens step-by-stepRun in cloud
Runs on B300 (288 GB) (100 GB headroom) · Q4_K_M
- Generation speed
- ~215 tok/s
- generation speed
- Cost per 1M output tokens
- $8.97
- per 1M output tokens
How Much VRAM Does MiMo V2.5 Need?
Select a quantization level; the listed hardware adheres to it.
| Quantization | VRAM | +32K | Runs on | |
|---|---|---|---|---|
| 132.5 GB | 134 GB | 2-bit · K-quant — 2-bit quantization with K-quant improvements | Runs on H200 NVL 141 GB | |
| 136.4 GB | 137.9 GB | 3-bit small — 3-bit small quantization | Runs on H200 NVL 141 GB | |
| 151.9 GB | 153.4 GB | 3-bit medium — 3-bit medium quantization | Runs on B200 192 GB | |
| 155.8 GB | 157.3 GB | 4-bit · legacy — 4-bit legacy quantization | Runs on B200 192 GB | |
| 186.8 GB | 188.4 GB | 4-bit medium — 4-bit medium quantization — most popular sweet spot | Runs on B200 192 GB | |
| 221.8 GB | 223.3 GB | 5-bit medium — 5-bit medium quantization — good quality/size tradeoff | Runs on Instinct MI325X 256 GB | |
| 256.8 GB | 258.3 GB | 6-bit, very good — 6-bit quantization, very good quality | Runs on Instinct MI350X 288 GB | |
| 311.2 GB | 312.7 GB | 8-bit, near-lossless — 8-bit quantization, near-lossless | Runs on 5× H100 SXM 80 GB |
Selected Q4_K_M
4-bit medium quantization187.6GBat 16K context
- Weights
- 186.5 GB
- KV cache
- 0.8 GB
- Overhead
- 0.3 GB
Server-class: ~187.6 GB at 16K context · one B200 192 GB
Or .
Which Hardware Can Run MiMo V2.5?
Q4_K_M · 186.8 GBMiMo V2.5 (Q4_K_M) requires 186.8 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 243+ GB is recommended. Using the full 1049K context window can add up to 51.4 GB, bringing total usage to 238.3 GB. No consumer GPU has enough memory. 4 devices with unified memory can run MiMo V2.5, including Mac Studio (M3 Ultra, 512GB), Mac Studio (M3 Ultra, 256GB).
128–144 GB
Q4_K_M · best fit IQ3_XXS (121.5 GB)
4 GPUs · 2 Mac classes
GH200 Grace Hopper Superchip~210Simulate output on GH200 Grace Hopper SuperchipH200 NVL~208Simulate output on H200 NVLH200 SXM~208Simulate output on H200 SXMM2 Ultra*128 GB~46Simulate output on Mac Pro M2 Ultra (128 GB)M5 Max128 GB~39Simulate output on Mac Studio M5 Max (128 GB)192+ GB
fits · 4.5 GB free · up to 64K ctx
6 GPUs · 1 Mac class · 2 device families
B200~215Simulate output on B200B300~215Simulate output on B300Instinct MI350X~85Simulate output on Instinct MI350XM3 Ultra*256–512 GB~36Simulate output on Mac Studio (M3 Ultra, 256GB)8x H100 SXM5~309Simulate output on NVIDIA DGX H1008x A100 SXM4~276Simulate output on NVIDIA DGX A100 640GB
By VRAM tier · typical GPUs and Macs at Q4_K_M
Consumer GPUs (up to 32 GB) and Macs up to 64 GB: too small for this model (needs ≥ 86.6 GB)8 GB tier →12 GB tier →16 GB tier →24 GB tier →Macs →
How good is MiMo V2.5?
The llmrun Score merges 4 public benchmark boards into a single figure, where 100 represents the average for open models.
Score vs VRAM in the ≤192 GB tier
- MiMo V2.5
- Other models
- Best Score for its VRAM
#18 of 82 that fit ≤192 GB
Each dot is a model at the best quant that fits ≤192 GB. The line steps up to the best Score available at each amount of VRAM; a dot below it is beaten by a model that needs no more memory.
Full ≤192 GB ranking →Benchmarks
Here are all 6 boards that have results for this model, sorted by their weight in the llmrun Score; badges show who ran the test.
- LMArena Text
LMArena · Oct 2026Arena
Arena1433.9
#25/188 open
- LMArena WebDev
LMArena · Oct 2026Arena
Arena1438.3
#23/55 open
- SciCode
Epoch AILab-reported
Lab-reported43.1%
#31/72 open
- ALE-Bench
Epoch AILab-reported
Lab-reported514.0
#36/48 open
- ProofBench
Epoch AILab-reported
Lab-reported16.0%
#20/31 open
- CritPt
Epoch AILab-reported
Lab-reported3.7%
#26/84 open
In the ≤192 GB class
82 models fit ≤192 GBSame Score, only models that fit ≤192 GB at their best quant: the ranking a ≤192 GB owner actually chooses from.
- #1
MiMo V2.6 Flash RLXiaomi
131.9
~229 tok/s · 186.5 GB
- #2
Step 5 PreviewStepFun
128.0
~151 tok/s · 191.4 GB
- #3
DeepSeek V4 Flash 0731DeepSeek
127.6
~181 tok/s · 183.0 GB
- #4
GLM 5.3 FlashZ.ai
124.1
~228 tok/s · 185.1 GB
- #5
Qwen3.8 27BAlibaba
122.0
~299 tok/s · 17.9 GB
- #6
Inkling SmallThinking Machines
119.6
~399 tok/s · 162.7 GB
Alternatives to MiMo V2.5
MiMo family · 8 models →Official models with an llmrun Score, each answering one question; sizes are each model's default quant (usually Q4_K_M) with a 16K-token context.
Best alternative at this size
MiMo V2.6 Flash RL
Xiaomi
- 23.6 higher Score
- 1.1 GB less VRAM
Score 131.9 · 186.5 GB
Other vendor
DeepSeek V4 Flash 0731
DeepSeek
- 19.3 higher Score
- 4.6 GB less VRAM
Score 127.6 · 183 GB
Similar models
10| Model | Score | VRAM | tok/s | Why it is similar |
|---|---|---|---|---|
| GLM 5.3 FlashZ.ai | 124.1 | 205.2 GB | —needs > 24 GB | similar score |
| Inkling SmallThinking Machines | 119.6 | 162.7 GB | —needs > 24 GB | similar score |
| Beam 1.0 501B A23Breflection | 119.5 | 304 GB | —needs > 24 GB | similar score |
| DeepSeek V4 FlashDeepSeek | 115.3 | 175.1 GB | —needs > 24 GB | similar score |
| Qwen3.5 397B A17BAlibaba | 112.8 | 242.6 GB | —needs > 24 GB | similar score |
| MiniMax M3MiniMax | 112.6 | 258 GB | —needs > 24 GB | similar score |
| MiniMax M2.5MiniMax | 111.8 | 139.6 GB | —needs > 24 GB | similar score |
| MiniMax M2.7MiniMax | 107.4 | 139.6 GB | —needs > 24 GB | similar score |
| Qwen3.6 35B A3BAlibaba | 106.8 | 22 GB | ~151 | similar score |
| Gemma 4 31B ITGoogle | 106.7 | 21.7 GB | ~32 | similar score |
Specifications
- Publisher
- Xiaomi
- Family
- MiMo
- Parameters
- 310.8B
- Active parameters
- 17.4B per token
- Architecture
- MiMoV2ForCausalLM
- Context Length
- 1,048,576 tokens
- Vocabulary Size
- 152,576
- Release Date
- 2026-04-27
- License
- MIT
Frequently Asked Questions
How much VRAM does MiMo V2.5 need?
MiMo V2.5 requires 186.8 GB of VRAM at Q4_K_M, or 621.9 GB at BF16. Full 1049K context adds up to 51.4 GB (238.3 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 310.8B × 4.8 bits ÷ 8 = 186.5 GB
KV Cache + Overhead ≈ 0.3 GB (at 2K context + ~0.3 GB framework)
Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.
KV Cache + Overhead ≈ 51.8 GB (at full 1049K context)
VRAM usage by quantization
Can NVIDIA GeForce RTX 5090 run MiMo V2.5?
No — MiMo V2.5 requires at least 85.9 GB at IQ2_XXS, which exceeds the NVIDIA GeForce RTX 5090's 32 GB of VRAM.
What's the best quantization for MiMo V2.5?
For MiMo V2.5, Q4_K_M (186.8 GB) offers the best balance of quality and VRAM usage. Q4_K_L (190.7 GB) provides better quality if you have the VRAM. The smallest option is IQ2_XXS at 85.9 GB.
VRAM requirement by quantization
★ Recommended — best balance of quality and VRAM usage.
Can I run MiMo V2.5 on a Mac?
Yes — Mac Studio (M3 Ultra, 96GB) and 20 other Macs can run MiMo V2.5, the smallest at IQ2_XXS. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 186.8 GB of usable unified memory (RAM minus macOS overhead), from Mac Pro M2 Ultra (192 GB).
Can I run MiMo V2.5 locally?
Yes — MiMo V2.5 can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.
How fast is MiMo V2.5?
At Q4_K_M, MiMo V2.5 can reach ~85 tok/s on AMD Instinct MI350X. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.
tok/s = 1000 ÷ (active GB ÷ (bandwidth GB/s × efficiency) × 1000 + layers × routing ms)
Mixture-of-Experts: just the active experts get read for each token, along with a fixed routing cost per layer.
Example: NVIDIA B200 → 10.5 GB active ÷ (8000 × 0.65) = 2.01 ms, plus 48 layers × 0.055 ms = 2.64 ms, so 1000 ÷ 4.65 ms = ~215 tok/s
Estimated speed at Q4_K_M (186.8 GB)
Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
What's the download size of MiMo V2.5?
At Q4_K_M, the download is about 186.45 GB. The full-precision BF16 version is 621.51 GB. The smallest option (IQ2_XXS) is 85.46 GB.
Which GPUs can run MiMo V2.5?
No single consumer GPU has enough VRAM to run MiMo V2.5 at Q4_K_M (186.8 GB). Multi-GPU or professional hardware is required.
Which devices can run MiMo V2.5?
4 devices with unified memory can run MiMo V2.5 at Q4_K_M (186.8 GB), including Mac Pro M2 Ultra (192 GB), Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), Mac Studio M2 Ultra (192 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.