Xiaomi: MiMo-V2-Flash

Xiaomi: MiMo-V2-Flash

xiaomi · Released Dec 14, 2025
66
Our Score

MiMo-V2-Flash is an open-source foundation language model developed by Xiaomi. It is a Mixture-of-Experts model with 309B total parameters and 15B active parameters, adopting hybrid attention architecture. MiMo-V2-Flash supports a hybrid-thinking toggle and a 256K context window, and excels at reasoning, coding, and agent scenarios. On SWE-bench Verified and SWE-bench Multilingual, MiMo-V2-Flash ranks as the top #1 open-source model globally, delivering performance comparable to Claude Sonnet 4.5 while costing only about 3.5% as much. Users can control the reasoning behaviour with the reasoning enabled boolean. Learn more in our docs.

$0.09 / 1M Input Price
$0.29 / 1M Output Price
262,144 tokens Context Window
65,536 tokens Max Output

Capabilities

Tool Use Function Calling

Architecture

ModalityText → Text
TokenizerOther

Performance Indices

Source: Artificial Analysis

30.4 Intelligence Index
25.8 Coding Index
54.8 Agentic Index
67.7 Math Index

Benchmark Scores

Evaluations

GPQA Diamond 65.6%
Graduate-level scientific reasoning
HLE 8%
Humanity's Last Exam
MMLU Pro 74.4%
Multi-task language understanding
LiveCodeBench 40.2%
Live coding evaluation
SciCode 25.9%
Scientific computing
AIME 2025 67.7%
Competition mathematics (2025)
IFBench 39.9%
Instruction following
LCR 31.3%
Long-context reasoning
TerminalBench Hard 25.8%
Agentic terminal tasks
τ²-Bench 83.9%
Conversational agent benchmark

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID xiaomi/mimo-v2-flash
Providerxiaomi
Release Date December 14, 2025
Context Length262,144 tokens
Max Completion65,536 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.09 $0.000090
Output $0.29 $0.000290

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
776ms
Best Latency (TTFT)
65 tok/s
Best Throughput
3/3
Active Endpoints
Available via: Chutes, Xiaomi, AtlasCloud

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