Model Comparison
GPT-5.6 Terra vs MiMo-V2-OmniWhich is better in 2026?
GPT-5.6 Terra significantly outperforms across most benchmarks. MiMo-V2-Omni is 7.0x cheaper per token.
Verdict: GPT-5.6 Terra vs MiMo-V2-Omni — which is better?
GPT-5.6 Terra (by OpenAI) and MiMo-V2-Omni (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-5.6 Terra outperforms in 1 benchmarks (GDPval-AA), while MiMo-V2-Omni is better at 0 benchmarks. GPT-5.6 Terra significantly outperforms across most benchmarks.
On price, MiMo-V2-Omni is roughly 7.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-5.6 Terra also accepts a larger context window (1,050,000 input tokens), making it the stronger choice for long documents and large codebases.
Choose GPT-5.6 Terra if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you process long inputs — it offers a 1,050,000 token context window
- you want the most recent training data — it shipped Jul 2026
Choose MiMo-V2-Omni if…
- cost matters — it's about 7.0x cheaper per token
Performance Benchmarks
Comparative analysis across standard metrics
GPT-5.6 Terra outperforms in 1 benchmarks (GDPval-AA), while MiMo-V2-Omni is better at 0 benchmarks.
GPT-5.6 Terra significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-5.6 Terra ($2.50/1M tokens) is 6.3x more expensive than MiMo-V2-Omni ($0.40/1M tokens).
For output processing, GPT-5.6 Terra ($15.00/1M tokens) is 7.5x more expensive than MiMo-V2-Omni ($2.00/1M tokens).
In conclusion, GPT-5.6 Terra is more expensive than MiMo-V2-Omni.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-5.6 Terra accepts 1,050,000 input tokens compared to MiMo-V2-Omni's 262,000 tokens. GPT-5.6 Terra can generate longer responses up to 128,000 tokens, while MiMo-V2-Omni is limited to 16,384 tokens.
Input Capabilities
Supported data types and modalities
Both GPT-5.6 Terra and MiMo-V2-Omni support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.6 Terra
MiMo-V2-Omni
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-5.6 Terra was released on 2026-07-09, while MiMo-V2-Omni was released on 2026-03-18.
GPT-5.6 Terra is 4 months newer than MiMo-V2-Omni.
Jul 9, 2026
1 weeks ago
3mo newerMar 18, 2026
4 months ago
Knowledge Cutoff
When training data ends
GPT-5.6 Terra has a documented knowledge cutoff of 2026-02-16, while MiMo-V2-Omni's cutoff date is not specified.
We can confirm GPT-5.6 Terra's training data extends to 2026-02-16, but cannot make a direct comparison without MiMo-V2-Omni's cutoff date.
Feb 2026
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Provider Availability
GPT-5.6 Terra is available from OpenAI. MiMo-V2-Omni is available from Xiaomi.
GPT-5.6 Terra
MiMo-V2-Omni
Outputs Comparison
Key Takeaways
MiMo-V2-Omni
View detailsXiaomi
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against GPT-5.6 Terra and MiMo-V2-Omni side-by-side, then vote on the output you prefer.
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FAQ
Common questions about GPT-5.6 Terra vs MiMo-V2-Omni.