Family MiMo · 1020B parameters

MiMo V2.5 Pro

1.02T/42B active MoE, MIT. 57.2% on SWE-Bench Pro, 1M context, 6:1 hybrid attention. Release date: April 22, 2026.

🇨🇳 Xiaomi·License MIT·Context 976.5625k tokens·Output April 22, 2026← Catalog

01What it can do

Strengths
  • Open MIT agentic frontier
  • 1M context
  • ≥1000 tool calls per chain
  • 57.2% SWE-Bench Pro
  • KV-cache ÷7 vs full attention
Limitations to know
  • —≈600 GB VRAM in Q4—datacenter required
  • —No official Ollama quantization
  • —MTP not supported everywhere
Architecture
1.02T/42B MoE · 70 layers (1 dense + 69 MoE) · 384 top-8 experts · hybrid SWA/GA 6:1 · MTP 3 layers · FP8 E4M3
Training
Three-stage post-training: SFT → domain-specialized RL (math, safety, agentic) → Multi-Teacher On-Policy Distillation.
Ideal for
Open frontierTool-calling agentsLong reasoning

05Install

Install Ollama for your OS. Check the model and its quantization before downloading. Start with 4096 tokens of context, then check placement with ollama ps. A command below is not proof that a test was run on your machine.

$# HuggingFace : XiaomiMiMo/MiMo-V2.5-Pro
⚠
First download: between 2 and 40 GB depending on the selected quantization. Plan for sufficient disk space; a stable connection is recommended. Subsequent launches are instant.

02Required memory

Approximate GPU VRAM required to run this model, including 4k tokens of context overhead. For a longer context, add ~1 GB per 8k-token increment.

Q4_K_M
The lightest, ~5% loss
595 GB
Q5_K_M
Good quality/size compromise
720 GB
Q8_0
Nearly indistinguishable from FP16
1090 GB
FP16
Full precision — server use
2040 GB
Fallback CPU · If you don't have a GPU, allow 700 GB of RAM minimum to run this model at reduced speed.

What hardware do you need for MiMo V2.5 Pro?

To run MiMo V2.5 Pro locally with Q4 quantization, you need about 595 GB of VRAM. An option to compare: BOSGAME M5 128GB / 2TB (Ryzen AI Max+ 395) — this model exceeds this mini-PC's GPU capacity: choose a smaller model or suitable infrastructure.

Current offer: BOSGAME M5 128GB / 2TB (Ryzen AI Max+ 395)
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Why this choice? Our complete guide on BOSGAME M5 128GB / 2TB (Ryzen AI Max+ 395) →

Affiliate links — commission possible at no extra cost to you; independent recommendations. As an Amazon Associate, BestLLMfor earns from qualifying purchases.

This model in your private ChatGPT, without the cloud

Too large for your machine? The kit gives you the model that fits in your VRAM

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03Expected speed

Tokens generated per second in Q4_K_M, 4k context. Beyond 20 t/s, reading is comfortable. Below 10 t/s, that's just for testing.

Entry-level
~1t/s
GTX 1650, RX 6600, MBA M2 8GB
Mid-range
~4t/s
RTX 4060, 4070, MBP M3 Pro
High-end
~12t/s
RTX 4090, M4 Max, Radeon 7900

04Public benchmarks

Scores reproduced from model cards or MMLU-Pro / community sources. Unit: % correct answers.

SWE-Bench Pro
57.2
Claw-Eval
63.8
τ3-Bench
72.9