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GPT-5 mini vs MiMo-V2-Flash

GPT-5 mini and MiMo-V2-Flash are closely matched at 27.1 and 30.5 on the LLM Stats Score. MiMo-V2-Flash is 4.6x cheaper per token.

OpenAI · Xiaomi · Updated for 2026

Which is better?

GPT-5 mini and MiMo-V2-Flash are closely matched on the overall LLM Stats Score at 27.1 and 30.5.

In the 4 individual benchmarks reported for both models, MiMo-V2-Flash wins 3; this is a narrower head-to-head signal than the composite indexes.

On price, MiMo-V2-Flash is roughly 4.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-5 mini also accepts a larger context window (400,000 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose GPT-5 mini

  • you process long inputs — it offers a 400,000 token context window

Choose MiMo-V2-Flash

  • you value its reported benchmark strengths — it wins 3 of 4 exact shared results
  • cost matters — it's about 4.6x 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

At a glance

The differences that matter most.

Core performance indexes
27.1
#167
30.5
#139
26.4
#168
30.6
#135
Cost, coverage & limits
Benchmark wins
1 of 4
3 of 4
Input price
$0.25 / M
$0.10 / M
Output price
$2.00 / M
$0.30 / M
Context window
400,000
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GPT-5 mini
MiMo-V2-Flash
25.4#114
29.2#92
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

5 reported for GPT-5 mini · 15 for MiMo-V2-Flash

4 shared

GPT-5 mini outperforms in 1 benchmarks (HMMT 2025), while MiMo-V2-Flash is better at 3 benchmarks (AIME 2025, GPQA, Humanity's Last Exam).

MiMo-V2-Flash shows notably better performance in the majority of benchmarks.

Tue Oct 20 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

MiMo-V2-Flash costs less

For input processing, GPT-5 mini ($0.25/1M tokens) is 2.5x more expensive than MiMo-V2-Flash ($0.10/1M tokens).

For output processing, GPT-5 mini ($2.00/1M tokens) is 6.7x more expensive than MiMo-V2-Flash ($0.30/1M tokens).

In conclusion, GPT-5 mini is more expensive than MiMo-V2-Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Oct 20 2026 • llm-stats.com
OpenAI
GPT-5 mini
Input tokens$0.25
Output tokens$2.00
Best providerOpenAI
Xiaomi
MiMo-V2-Flash
Input tokens$0.10
Output tokens$0.30
Best providerXiaomi
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

GPT-5 mini accepts 400,000 input tokens compared to MiMo-V2-Flash's 256,000 tokens. GPT-5 mini can generate longer responses up to 128,000 tokens, while MiMo-V2-Flash is limited to 16,384 tokens.

OpenAI
GPT-5 mini
Input400,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2-Flash
Input256,000 tokens
Output16,384 tokens
Tue Oct 20 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-5 mini supports multimodal inputs, whereas MiMo-V2-Flash does not.

GPT-5 mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5 mini

Text
Images
Audio
Video

MiMo-V2-Flash

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5 mini 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.

GPT-5 mini

Proprietary

Closed source

MiMo-V2-Flash

MIT

Open weights

Release Timeline

When each model was launched

GPT-5 mini 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 mini.

GPT-5 mini

Aug 7, 2025

1.2 years ago

MiMo-V2-Flash

Dec 16, 2025

10 months ago

4mo newer

Knowledge Cutoff

When training data ends

GPT-5 mini has a documented knowledge cutoff of 2024-05-30, while MiMo-V2-Flash's cutoff date is not specified.

We can confirm GPT-5 mini's training data extends to 2024-05-30, but cannot make a direct comparison without MiMo-V2-Flash's cutoff date.

GPT-5 mini

May 2024

MiMo-V2-Flash

—

Provider Availability

GPT-5 mini is available from OpenAI. MiMo-V2-Flash is available from Xiaomi.

GPT-5 mini

openai logo
OpenAI
Input Price:Input: $0.25/1MOutput Price:Output: $2.00/1M

MiMo-V2-Flash

xiaomi logo
Xiaomi
Input Price:Input: $0.10/1MOutput Price:Output: $0.30/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-5 mini and MiMo-V2-Flash side-by-side, then vote on the output you prefer.

GPT-5 mini
✓ Preferred
MiMo-V2-Flash
Open in Playground

FAQ

Common questions about GPT-5 mini vs MiMo-V2-Flash.

Which is better, GPT-5 mini or MiMo-V2-Flash?

GPT-5 mini and MiMo-V2-Flash are closely matched on the LLM Stats Score at 27.1 and 30.5. GPT-5 mini is made by OpenAI 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 GPT-5 mini compare to MiMo-V2-Flash in benchmarks?

GPT-5 mini scores AIME 2025: 91.1%, HMMT 2025: 87.8%, GPQA: 82.3%, FrontierMath: 22.1%, Humanity's Last Exam: 16.7%. MiMo-V2-Flash scores AIME 2025: 94.1%, Arena-Hard v2: 86.2%, MMLU-Pro: 84.9%, HMMT 2025: 84.4%, GPQA: 83.7%.

Is GPT-5 mini cheaper than MiMo-V2-Flash?

MiMo-V2-Flash is 2.5x cheaper for input tokens. GPT-5 mini costs $0.25/M input and $2.00/M output via openai. MiMo-V2-Flash costs $0.10/M input and $0.30/M output via xiaomi.

What are the context window sizes for GPT-5 mini and MiMo-V2-Flash?

GPT-5 mini supports 400K 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 GPT-5 mini and MiMo-V2-Flash?

Key differences include LLM Stats Score (27.1 vs 30.5), context window (400K vs 256K), input pricing ($0.25 vs $0.10/M), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5 mini and MiMo-V2-Flash?

GPT-5 mini is developed by OpenAI and MiMo-V2-Flash is developed by Xiaomi.