Model Comparison

GPT-5.4 vs MiMo-V2-Flash

GPT-5.4 significantly outperforms across most benchmarks. MiMo-V2-Flash is 37.5x cheaper per token.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

GPT-5.4 outperforms in 4 benchmarks (BrowseComp, GPQA, Humanity's Last Exam, Terminal-Bench 2.0), while MiMo-V2-Flash is better at 0 benchmarks.

GPT-5.4 significantly outperforms across most benchmarks.

Sat May 02 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

MiMo-V2-Flash costs less

For input processing, GPT-5.4 ($2.50/1M tokens) is 25.0x more expensive than MiMo-V2-Flash ($0.10/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 50.0x more expensive than MiMo-V2-Flash ($0.30/1M tokens).

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

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

Lowest available price from all providers
Sat May 02 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
Best providerOpenAI
Xiaomi
MiMo-V2-Flash
Input tokens$0.10
Output tokens$0.30
Best providerXiaomi
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.4 accepts 1,000,000 input tokens compared to MiMo-V2-Flash's 256,000 tokens. GPT-5.4 can generate longer responses up to 128,000 tokens, while MiMo-V2-Flash is limited to 16,384 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2-Flash
Input256,000 tokens
Output16,384 tokens
Sat May 02 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.4 supports multimodal inputs, whereas MiMo-V2-Flash 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-Flash

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.4 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-5.4

Proprietary

Closed source

MiMo-V2-Flash

MIT

Open weights

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while MiMo-V2-Flash was released on 2025-12-16.

GPT-5.4 is 3 months newer than MiMo-V2-Flash.

GPT-5.4

Mar 5, 2026

1 months ago

2mo newer
MiMo-V2-Flash

Dec 16, 2025

4 months ago

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-Flash is available from Xiaomi.

GPT-5.4

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

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?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Higher BrowseComp score (82.7% vs 58.3%)
Higher GPQA score (92.8% vs 83.7%)
Higher Humanity's Last Exam score (39.8% vs 22.1%)
Higher Terminal-Bench 2.0 score (75.1% vs 38.5%)
Xiaomi
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-Flash

FAQ

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

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

GPT-5.4 significantly outperforms across most benchmarks. GPT-5.4 is made by OpenAI and MiMo-V2-Flash 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-Flash 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-Flash scores AIME 2025: 94.1%, Arena-Hard v2: 86.2%, MMLU-Pro: 84.9%, HMMT 2025: 84.4%, GPQA: 83.7%.

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

MiMo-V2-Flash is 25.0x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/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-5.4 and MiMo-V2-Flash?

GPT-5.4 supports 1.0M 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-5.4 and MiMo-V2-Flash?

Key differences include context window (1.0M vs 256K), input pricing ($2.50 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-5.4 and MiMo-V2-Flash?

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