Model Comparison

GPT-5.4 vs MiMo-V2-ProWhich is better in 2026?

GPT-5.4 significantly outperforms across most benchmarks. MiMo-V2-Pro is 3.8x cheaper per token.

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

GPT-5.4 (by OpenAI) and MiMo-V2-Pro (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 (GDPval-AA, Tau2 Telecom, Terminal-Bench 2.0), while MiMo-V2-Pro is better at 0 benchmarks. GPT-5.4 significantly outperforms across most benchmarks.

On price, MiMo-V2-Pro is roughly 3.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Choose GPT-5.4 if…

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

Choose MiMo-V2-Pro if…

  • cost matters — it's about 3.8x cheaper per token
  • you want the most recent training data — it shipped Mar 2026

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

GPT-5.4 outperforms in 3 benchmarks (GDPval-AA, Tau2 Telecom, Terminal-Bench 2.0), while MiMo-V2-Pro is better at 0 benchmarks.

GPT-5.4 significantly outperforms across most benchmarks.

Sat Jul 04 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

MiMo-V2-Pro costs less

For input processing, GPT-5.4 ($2.50/1M tokens) is 2.5x more expensive than MiMo-V2-Pro ($1.00/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 5.0x more expensive than MiMo-V2-Pro ($3.00/1M tokens).

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

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

Lowest available price from all providers
Sat Jul 04 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
Best providerOpenAI
Xiaomi
MiMo-V2-Pro
Input tokens$1.00
Output tokens$3.00
Best providerXiaomi
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. GPT-5.4 can generate longer responses up to 128,000 tokens, while MiMo-V2-Pro is limited to 16,384 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2-Pro
Input1,000,000 tokens
Output16,384 tokens
Sat Jul 04 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.4 supports multimodal inputs, whereas MiMo-V2-Pro does not.

GPT-5.4 can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5.4

Text
Images
Audio
Video

MiMo-V2-Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-5.4

Proprietary

Closed source

MiMo-V2-Pro

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while MiMo-V2-Pro was released on 2026-03-18.

MiMo-V2-Pro is 0 month newer than GPT-5.4.

GPT-5.4

Mar 5, 2026

4 months ago

MiMo-V2-Pro

Mar 18, 2026

3 months ago

1w 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-Pro is available from Xiaomi.

GPT-5.4

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

MiMo-V2-Pro

xiaomi logo
Xiaomi
Input Price:Input: $1.00/1MOutput Price:Output: $3.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Supports multimodal inputs
Higher GDPval-AA score (47.6% vs 47.5%)
Higher Tau2 Telecom score (98.9% vs 96.8%)
Higher Terminal-Bench 2.0 score (75.1% vs 57.1%)
Xiaomi
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT-5.4 and MiMo-V2-Pro side-by-side, then vote on the output you prefer.

GPT-5.4
✓ Preferred
MiMo-V2-Pro
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT-5.4
Xiaomi
MiMo-V2-Pro

FAQ

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

Which is better, GPT-5.4 or MiMo-V2-Pro?

GPT-5.4 significantly outperforms across most benchmarks. GPT-5.4 is made by OpenAI and MiMo-V2-Pro 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-Pro 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-Pro scores Tau2 Telecom: 96.8%, DeepSearchQA: 86.7%, PinchBench: 81.0%, SWE-Bench Verified: 78.0%, SWE-bench Multilingual: 71.7%.

Is GPT-5.4 cheaper than MiMo-V2-Pro?

MiMo-V2-Pro is 2.5x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/M output via openai. MiMo-V2-Pro costs $1.00/M input and $3.00/M output via xiaomi.

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

GPT-5.4 supports 1.0M tokens and MiMo-V2-Pro 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-Pro?

Key differences include input pricing ($2.50 vs $1.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.4 and MiMo-V2-Pro?

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

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