The AI arena is free today

Open Superagent

Hy4 preview vs MiMo-V2.6-Pro

Hy4 preview and MiMo-V2.6-Pro are closely matched at 50.8 and 40.6 on the LLM Stats Score.

Tencent · Xiaomi · Updated for 2026

Which is better?

Hy4 preview and MiMo-V2.6-Pro are closely matched on the overall LLM Stats Score at 50.8 and 40.6.

In the 1 individual benchmarks reported for both models, MiMo-V2.6-Pro wins 1; 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

  • you are already invested in the Tencent ecosystem

Choose MiMo-V2.6-Pro

  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Hy4 preview
Tencent
MiMo-V2.6-Pro
Xiaomi
Core performance indexes
LLM Stats Score
50.8
#15
40.6
#57
Coding
39.3
#15
34.1
#35
Agents
36.5
#16
29.9
#38
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

32 reported for Hy4 preview · 3 for MiMo-V2.6-Pro

1 shared

Hy4 preview outperforms in 0 benchmarks, while MiMo-V2.6-Pro is better at 1 benchmark (Program Bench).

MiMo-V2.6-Pro significantly outperforms across most benchmarks.

Mon Sep 21 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

250.0B diff

MiMo-V2.6-Pro has 250.0B more parameters than Hy4 preview, making it 32.5% larger.

Tencent
Hy4 preview
770.0Bparameters
Xiaomi
MiMo-V2.6-Pro
1.0Tparameters
770.0B
Hy4 preview
1020.0B
MiMo-V2.6-Pro

Input capabilities

Documented input modalities across available providers

MiMo-V2.6-Pro supports multimodal inputs, whereas Hy4 preview does not.

MiMo-V2.6-Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Hy4 preview

Text
Images
Audio
Video

MiMo-V2.6-Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Hy4 preview is licensed under Apache 2.0, while MiMo-V2.6-Pro 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-V2.6-Pro

MIT

Open weights

Release Timeline

When each model was launched

Hy4 preview was released on 2026-08-28, while MiMo-V2.6-Pro was released on 2026-09-22.

MiMo-V2.6-Pro is 1 month newer than Hy4 preview.

Hy4 preview

Aug 28, 2026

3 weeks ago

MiMo-V2.6-Pro

Sep 22, 2026

-1 days ago

3w newer

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-V2.6-Pro side-by-side, then vote on the output you prefer.

Hy4 preview
✓ Preferred
MiMo-V2.6-Pro
Open in Playground

FAQ

Common questions about Hy4 preview vs MiMo-V2.6-Pro.

Which is better, Hy4 preview or MiMo-V2.6-Pro?

Hy4 preview and MiMo-V2.6-Pro are closely matched on the LLM Stats Score at 50.8 and 40.6. Hy4 preview is made by Tencent and MiMo-V2.6-Pro 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-V2.6-Pro 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-V2.6-Pro scores DeepSWE 1.1: 71.9%, MiMo Coding Bench: 63.2%, Program Bench: 26.5%.

What are the main differences between Hy4 preview and MiMo-V2.6-Pro?

Key differences include LLM Stats Score (50.8 vs 40.6), multimodal support (no vs yes), licensing (Apache 2.0 vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy4 preview and MiMo-V2.6-Pro?

Hy4 preview is developed by Tencent and MiMo-V2.6-Pro is developed by Xiaomi.

Related comparisons