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Hy4 preview vs MiMo-V2-Flash

Hy4 preview leads the LLM Stats Score 50.4 to 30.7.

Tencent · Xiaomi · Updated for 2026

Which is better?

Hy4 preview leads the overall LLM Stats Score 50.4 to 30.7, ranking #15 overall.

In the 2 individual benchmarks reported for both models, Hy4 preview wins 2; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Hy4 preview

  • overall performance matters — it scores 50.4 and ranks #15 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • you want the most recent training data — it shipped Aug 2026

Choose MiMo-V2-Flash

  • you want predictable pricing at $0.10/M input and $0.30/M output

At a glance

The differences that matter most.

Hy4 preview
Tencent
MiMo-V2-Flash
Xiaomi
Core performance indexes
LLM Stats Score
50.4
#15
30.7
#123
Reasoning
50.2
#11
30.8
#119
Coding
38.8
#16
17.5
#124
Agents
35.9
#18
8.1
#140
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
— / M
$0.10 / M
Output price
— / M
$0.30 / M
Context window
—
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Hy4 preview
MiMo-V2-Flash
Math
40.3#14
29.4#86
Tool use
27.7#19
6.2#151
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

32 reported for Hy4 preview · 15 for MiMo-V2-Flash

2 shared

Hy4 preview outperforms in 2 benchmarks (GPQA, SWE-bench Multilingual), while MiMo-V2-Flash is better at 0 benchmarks.

Hy4 preview significantly outperforms across most benchmarks.

Wed Sep 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

461.0B diff

Hy4 preview has 461.0B more parameters than MiMo-V2-Flash, making it 149.2% larger.

Tencent
Hy4 preview
770.0Bparameters
Xiaomi
MiMo-V2-Flash
309.0Bparameters
770.0B
Hy4 preview
309.0B
MiMo-V2-Flash

Context Window

Maximum input and output token capacity

Only MiMo-V2-Flash specifies input context (256,000 tokens). Only MiMo-V2-Flash specifies output context (16,384 tokens).

Tencent
Hy4 preview
Input- tokens
Output- tokens
Xiaomi
MiMo-V2-Flash
Input256,000 tokens
Output16,384 tokens
Wed Sep 23 2026 • llm-stats.com

License

Usage and distribution terms

Hy4 preview is licensed under Apache 2.0, while MiMo-V2-Flash uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Hy4 preview

Apache 2.0

Open weights

MiMo-V2-Flash

MIT

Open weights

Release Timeline

When each model was launched

Hy4 preview was released on 2026-08-28, while MiMo-V2-Flash was released on 2025-12-16.

Hy4 preview is 9 months newer than MiMo-V2-Flash.

Hy4 preview

Aug 28, 2026

3 weeks ago

8mo newer
MiMo-V2-Flash

Dec 16, 2025

9 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Hy4 preview and MiMo-V2-Flash side-by-side, then vote on the output you prefer.

Hy4 preview
✓ Preferred
MiMo-V2-Flash
Open in Playground

FAQ

Common questions about Hy4 preview vs MiMo-V2-Flash.

Which is better, Hy4 preview or MiMo-V2-Flash?

Hy4 preview leads the LLM Stats Score 50.4 to 30.7. Hy4 preview is made by Tencent and MiMo-V2-Flash is made by Xiaomi. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Hy4 preview compare to MiMo-V2-Flash in benchmarks?

Hy4 preview scores GPQA: 92.3%, Terminal-Bench 2.1: 85.4%, WideSearch: 83.9%, MCP Atlas: 83.7%, SWE-bench Multilingual: 82.9%. MiMo-V2-Flash scores AIME 2025: 94.1%, Arena-Hard v2: 86.2%, MMLU-Pro: 84.9%, HMMT 2025: 84.4%, GPQA: 83.7%.

What are the context window sizes for Hy4 preview and MiMo-V2-Flash?

Hy4 preview supports an unknown number of tokens and MiMo-V2-Flash supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Hy4 preview and MiMo-V2-Flash?

Key differences include LLM Stats Score (50.4 vs 30.7), licensing (Apache 2.0 vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy4 preview and MiMo-V2-Flash?

Hy4 preview is developed by Tencent and MiMo-V2-Flash is developed by Xiaomi.

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