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GPT-5.2 vs MiMo-V2.6-Pro

MiMo-V2.6-Pro leads the LLM Stats Score 49.8 to 41.4.

OpenAI · Xiaomi · Updated for 2026

Which is better?

MiMo-V2.6-Pro leads the overall LLM Stats Score 49.8 to 41.4, ranking #19 overall.

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

Choose GPT-5.2

  • you want predictable pricing at $1.75/M input and $14.00/M output

Choose MiMo-V2.6-Pro

  • overall performance matters — it scores 49.8 and ranks #19 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Core performance indexes
41.4
#54
49.8
#19
40.7
#52
45.2
#30
23.9
#77
41.8
#9
14.8
#90
37.5
#13
Cost, coverage & limits
Benchmark wins
Input price
$1.75 / M
— / M
Output price
$14.00 / M
— / M
Context window
400,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GPT-5.2
MiMo-V2.6-Pro
17.9#69
28.0#21
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

24 reported for GPT-5.2 · 3 for MiMo-V2.6-Pro

No common benchmarks found

GPT-5.2 and MiMo-V2.6-Prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only GPT-5.2 specifies input context (400,000 tokens). Only GPT-5.2 specifies output context (128,000 tokens).

OpenAI
GPT-5.2
Input400,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2.6-Pro
Input- tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-5.2 and MiMo-V2.6-Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-5.2

Text
Images
Audio
Video

MiMo-V2.6-Pro

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.2 is licensed under a proprietary license, while MiMo-V2.6-Pro uses MIT.

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

GPT-5.2

Proprietary

Closed source

MiMo-V2.6-Pro

MIT

Open weights

Release Timeline

When each model was launched

GPT-5.2 was released on 2025-12-11, while MiMo-V2.6-Pro was released on 2026-09-22.

MiMo-V2.6-Pro is 10 months newer than GPT-5.2.

GPT-5.2

Dec 11, 2025

9 months ago

MiMo-V2.6-Pro

Sep 22, 2026

-1 days ago

9mo newer

Knowledge Cutoff

When training data ends

GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while MiMo-V2.6-Pro's cutoff date is not specified.

We can confirm GPT-5.2's training data extends to 2025-08-25, but cannot make a direct comparison without MiMo-V2.6-Pro's cutoff date.

GPT-5.2

Aug 2025

MiMo-V2.6-Pro

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against GPT-5.2 and MiMo-V2.6-Pro side-by-side, then vote on the output you prefer.

GPT-5.2
✓ Preferred
MiMo-V2.6-Pro
Open in Playground

FAQ

Common questions about GPT-5.2 vs MiMo-V2.6-Pro.

Which is better, GPT-5.2 or MiMo-V2.6-Pro?

MiMo-V2.6-Pro leads the LLM Stats Score 49.8 to 41.4. GPT-5.2 is made by OpenAI 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 GPT-5.2 compare to MiMo-V2.6-Pro in benchmarks?

GPT-5.2 scores AIME 2025: 100.0%, HMMT 2025: 99.4%, Tau2 Telecom: 98.7%, Graphwalks BFS <128k: 94.0%, GPQA: 92.4%. MiMo-V2.6-Pro scores DeepSWE 1.1: 71.9%, MiMo Coding Bench: 63.2%, Program Bench: 26.5%.

What are the context window sizes for GPT-5.2 and MiMo-V2.6-Pro?

GPT-5.2 supports 400K tokens and MiMo-V2.6-Pro supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-5.2 and MiMo-V2.6-Pro?

Key differences include LLM Stats Score (41.4 vs 49.8), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.2 and MiMo-V2.6-Pro?

GPT-5.2 is developed by OpenAI and MiMo-V2.6-Pro is developed by Xiaomi.