GPT-5.4 Pro

GPT-5.4 Pro

OpenAI
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About

GPT-5.4 Pro is an advanced AI model developed by OpenAI to deliver high-performance capabilities for professional and complex tasks. It combines improvements in reasoning, coding, and agent-based workflows into a single unified system. The model is designed to work efficiently across professional tools such as spreadsheets, presentations, documents, and development environments. GPT-5.4 Pro also includes native computer-use capabilities, enabling AI agents to interact with software, websites, and operating systems to complete tasks. With support for up to one million tokens of context, it can manage long workflows and large datasets more effectively than previous models. The model also improves tool usage, allowing it to search for and select the right tools during multi-step processes. By delivering more accurate outputs with fewer tokens, GPT-5.4 Pro helps professionals complete complex work faster and more efficiently.

About

Step 3.5 Flash is an advanced open source foundation language model engineered for frontier reasoning and agentic capabilities with exceptional efficiency, built on a sparse Mixture of Experts (MoE) architecture that selectively activates only about 11 billion of its ~196 billion parameters per token to deliver high-density intelligence and real-time responsiveness. Its 3-way Multi-Token Prediction (MTP-3) enables generation throughput in the hundreds of tokens per second for complex multi-step reasoning chains and task execution, and it supports efficient long contexts with a hybrid sliding window attention approach that reduces computational overhead across large datasets or codebases. It demonstrates robust performance on benchmarks for reasoning, coding, and agentic tasks, rivaling or exceeding many larger proprietary models, and includes a scalable reinforcement learning framework for consistent self-improvement.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

GPT-5.4 Pro is designed for developers, enterprises, researchers, and professionals who need a powerful AI model to automate complex workflows, software development tasks, and advanced knowledge work

Audience

Developers, researchers, and AI engineers who want a powerful open source foundational AI model capable of fast, deep reasoning, coding assistance, and agentic task execution

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
openai.com

Company Information

StepFun
Founded: 2023
China
static.stepfun.com/blog/step-3.5-flash/

Alternatives

Claude Mythos

Claude Mythos

Anthropic

Alternatives

MiMo-V2-Flash

MiMo-V2-Flash

Xiaomi Technology
Claude Opus 4.6

Claude Opus 4.6

Anthropic
GPT-5.4

GPT-5.4

OpenAI
MiniMax M2.5

MiniMax M2.5

MiniMax
GLM-4.5

GLM-4.5

Z.ai

Categories

Categories

Integrations

GitHub
AiAssistWorks
Augment Code
Azure OpenAI Service
ChatGPT Atlas
ChatGPT Pro
Claw Code
Devin
Doraverse
FastRouter
Kineto by JetBrains
Kotlin
Microsoft Excel
Microsoft Foundry
ModelScope
OpenRouter
Python
React
TypeScript
Visual Studio Code

Integrations

GitHub
AiAssistWorks
Augment Code
Azure OpenAI Service
ChatGPT Atlas
ChatGPT Pro
Claw Code
Devin
Doraverse
FastRouter
Kineto by JetBrains
Kotlin
Microsoft Excel
Microsoft Foundry
ModelScope
OpenRouter
Python
React
TypeScript
Visual Studio Code
Claim GPT-5.4 Pro and update features and information
Claim GPT-5.4 Pro and update features and information
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Claim Step 3.5 Flash and update features and information