Model Comparison
GPT-5 High vs MiMo-V2-FlashWhich is better in 2026?
GPT-5 High significantly outperforms across most benchmarks. MiMo-V2-Flash is 22.9x cheaper per token.
Verdict: GPT-5 High vs MiMo-V2-Flash — which is better?
GPT-5 High (by OpenAI) and MiMo-V2-Flash (by Xiaomi) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
GPT-5 High outperforms in 2 benchmarks (AIME 2025, GPQA), while MiMo-V2-Flash is better at 0 benchmarks. GPT-5 High significantly outperforms across most benchmarks.
On price, MiMo-V2-Flash is roughly 22.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-5 High also accepts a larger context window (400,000 input tokens), making it the stronger choice for long documents and large codebases.
Choose GPT-5 High if…
- you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
- you process long inputs — it offers a 400,000 token context window
Choose MiMo-V2-Flash if…
- cost matters — it's about 22.9x cheaper per token
- you want the most recent training data — it shipped Dec 2025
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
GPT-5 High outperforms in 2 benchmarks (AIME 2025, GPQA), while MiMo-V2-Flash is better at 0 benchmarks.
GPT-5 High significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-5 High ($1.25/1M tokens) is 12.5x more expensive than MiMo-V2-Flash ($0.10/1M tokens).
For output processing, GPT-5 High ($10.00/1M tokens) is 33.3x more expensive than MiMo-V2-Flash ($0.30/1M tokens).
In conclusion, GPT-5 High is more expensive than MiMo-V2-Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-5 High accepts 400,000 input tokens compared to MiMo-V2-Flash's 256,000 tokens. GPT-5 High can generate longer responses up to 128,000 tokens, while MiMo-V2-Flash is limited to 16,384 tokens.
Input Capabilities
Supported data types and modalities
GPT-5 High supports multimodal inputs, whereas MiMo-V2-Flash does not.
GPT-5 High can handle both text and other forms of data like images, making it suitable for multimodal applications.
GPT-5 High
MiMo-V2-Flash
License
Usage and distribution terms
GPT-5 High is licensed under a proprietary license, while MiMo-V2-Flash uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
GPT-5 High was released on 2025-08-07, while MiMo-V2-Flash was released on 2025-12-16.
MiMo-V2-Flash is 4 months newer than GPT-5 High.
Aug 7, 2025
12 months ago
Dec 16, 2025
7 months ago
4mo newerKnowledge Cutoff
When training data ends
GPT-5 High has a documented knowledge cutoff of 2024-09-30, while MiMo-V2-Flash's cutoff date is not specified.
We can confirm GPT-5 High's training data extends to 2024-09-30, but cannot make a direct comparison without MiMo-V2-Flash's cutoff date.
Sep 2024
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Provider Availability
GPT-5 High is available from OpenAI. MiMo-V2-Flash is available from Xiaomi.
GPT-5 High
MiMo-V2-Flash
Outputs Comparison
Key Takeaways
GPT-5 High
View detailsOpenAI
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against GPT-5 High and MiMo-V2-Flash side-by-side, then vote on the output you prefer.
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FAQ
Common questions about GPT-5 High vs MiMo-V2-Flash.