Model Comparison

GPT-5.4 vs MiMo-V2.5Which is better in 2026?

GPT-5.4 significantly outperforms across most benchmarks. MiMo-V2.5 is 26.8x cheaper per token.

Verdict: GPT-5.4 vs MiMo-V2.5 — which is better?

GPT-5.4 (by OpenAI) and MiMo-V2.5 (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-5.4 outperforms in 3 benchmarks (MMMU-Pro, SWE-Bench Pro, Terminal-Bench 2.0), while MiMo-V2.5 is better at 0 benchmarks. GPT-5.4 significantly outperforms across most benchmarks.

On price, MiMo-V2.5 is roughly 26.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

MiMo-V2.5 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose GPT-5.4 if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks

Choose MiMo-V2.5 if…

  • cost matters — it's about 26.8x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Apr 2026
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

GPT-5.4 outperforms in 3 benchmarks (MMMU-Pro, SWE-Bench Pro, Terminal-Bench 2.0), while MiMo-V2.5 is better at 0 benchmarks.

GPT-5.4 significantly outperforms across most benchmarks.

Wed Jun 10 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

MiMo-V2.5 costs less

For input processing, GPT-5.4 ($2.50/1M tokens) is 14.9x more expensive than MiMo-V2.5 ($0.17/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 44.6x more expensive than MiMo-V2.5 ($0.34/1M tokens).

In conclusion, GPT-5.4 is more expensive than MiMo-V2.5.*

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

Lowest available price from all providers
Wed Jun 10 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
Best providerOpenAI
Xiaomi
MiMo-V2.5
Input tokens$0.17
Output tokens$0.34
Best providerNovita
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

MiMo-V2.5 accepts 1,048,576 input tokens compared to GPT-5.4's 1,000,000 tokens. MiMo-V2.5 can generate longer responses up to 131,072 tokens, while GPT-5.4 is limited to 128,000 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2.5
Input1,048,576 tokens
Output131,072 tokens
Wed Jun 10 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.4 and MiMo-V2.5 support multimodal inputs.

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

GPT-5.4

Text
Images
Audio
Video

MiMo-V2.5

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.4 is licensed under a proprietary license, while MiMo-V2.5 uses MIT.

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

GPT-5.4

Proprietary

Closed source

MiMo-V2.5

MIT

Open weights

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while MiMo-V2.5 was released on 2026-04-22.

MiMo-V2.5 is 2 months newer than GPT-5.4.

GPT-5.4

Mar 5, 2026

3 months ago

MiMo-V2.5

Apr 22, 2026

1 months ago

1mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GPT-5.4 is available from OpenAI. MiMo-V2.5 is available from Novita, DeepInfra.

GPT-5.4

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

MiMo-V2.5

novita logo
Novita
Input Price:Input: $0.17/1MOutput Price:Output: $0.34/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.40/1MOutput Price:Output: $2.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Higher MMMU-Pro score (81.2% vs 77.9%)
Higher SWE-Bench Pro score (57.7% vs 56.1%)
Higher Terminal-Bench 2.0 score (75.1% vs 65.8%)
Xiaomi
Larger context window (1,048,576 tokens)
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
Xiaomi
MiMo-V2.5

FAQ

Common questions about GPT-5.4 vs MiMo-V2.5.

Which is better, GPT-5.4 or MiMo-V2.5?

GPT-5.4 significantly outperforms across most benchmarks. GPT-5.4 is made by OpenAI and MiMo-V2.5 is made by Xiaomi. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-5.4 compare to MiMo-V2.5 in benchmarks?

GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%. MiMo-V2.5 scores HR-Bench (4k): 88.5%, Video-MME: 87.7%, OmniDocBench: 87.2%, GraphWalks: 87.0%, DailyOmni: 83.5%.

Is GPT-5.4 cheaper than MiMo-V2.5?

MiMo-V2.5 is 14.9x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/M output via openai. MiMo-V2.5 costs $0.17/M input and $0.34/M output via novita.

What are the context window sizes for GPT-5.4 and MiMo-V2.5?

GPT-5.4 supports 1.0M tokens and MiMo-V2.5 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-5.4 and MiMo-V2.5?

Key differences include context window (1.0M vs 1.0M), input pricing ($2.50 vs $0.17/M), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.4 and MiMo-V2.5?

GPT-5.4 is developed by OpenAI and MiMo-V2.5 is developed by Xiaomi.

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