GPT-5.4 nano vs MiMo-V2.6-Pro
MiMo-V2.6-Pro leads the LLM Stats Score 50.0 to 26.6. GPT-5.4 nano is 1.2x cheaper per token.
OpenAI · Xiaomi · Updated for 2026
Which is better?
MiMo-V2.6-Pro leads the overall LLM Stats Score 50.0 to 26.6, ranking #18 overall.
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.
On price, GPT-5.4 nano is roughly 1.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
MiMo-V2.6-Pro also accepts a larger context window (1,048,576 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-5.4 nano
- cost matters — it's about 1.2x cheaper per token
Choose MiMo-V2.6-Pro
- overall performance matters — it scores 50.0 and ranks #18 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you process long inputs — it offers a 1,048,576 token context window
- 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.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
15 reported for GPT-5.4 nano · 18 for MiMo-V2.6-Pro
GPT-5.4 nano outperforms in 0 benchmarks, while MiMo-V2.6-Pro is better at 1 benchmark (OSWorld-Verified).
MiMo-V2.6-Pro significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-5.4 nano ($0.20/1M tokens) is 2.2x cheaper than MiMo-V2.6-Pro ($0.43/1M tokens).
For output processing, GPT-5.4 nano ($1.25/1M tokens) is 1.4x more expensive than MiMo-V2.6-Pro ($0.87/1M tokens).
In conclusion, MiMo-V2.6-Pro is more expensive than GPT-5.4 nano.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
MiMo-V2.6-Pro accepts 1,048,576 input tokens compared to GPT-5.4 nano's 400,000 tokens. Only GPT-5.4 nano specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-5.4 nano and MiMo-V2.6-Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.4 nano
MiMo-V2.6-Pro
License
Usage and distribution terms
GPT-5.4 nano 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.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
GPT-5.4 nano was released on 2026-03-17, while MiMo-V2.6-Pro was released on 2026-09-22.
MiMo-V2.6-Pro is 6 months newer than GPT-5.4 nano.
Mar 17, 2026
6 months ago
Sep 22, 2026
0 days ago
6mo newerKnowledge Cutoff
When training data ends
GPT-5.4 nano has a documented knowledge cutoff of 2025-08-31, while MiMo-V2.6-Pro's cutoff date is not specified.
We can confirm GPT-5.4 nano's training data extends to 2025-08-31, but cannot make a direct comparison without MiMo-V2.6-Pro's cutoff date.
Aug 2025
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Provider Availability
GPT-5.4 nano is available from OpenAI. MiMo-V2.6-Pro is available from Xiaomi.
GPT-5.4 nano
MiMo-V2.6-Pro
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.4 nano and MiMo-V2.6-Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.4 nano vs MiMo-V2.6-Pro.