Loading page
FlagshipOpenAI
GPT-5.4 Pro
GPT-5.4 Pro is OpenAI's flagship language model offering advanced reasoning and multimodal capabilities with a 128K token context window.
Context 128K
Tier Flagship
Modalities text, image
Input from
$15.00 / 1M tokens
across 3 providers
API Pricing
Cheapest on OpenAI — 38% below avg| Provider | Input / 1M | Output / 1M |
|---|---|---|
| $15.00 | $90.00 | |
| $15.00 | $90.00 | |
| $30.00 | $180.00 | |
| $30.00 | $180.00 | |
| $30.00 | $180.00 |
Prices updated daily. Last check: Sep 8, 2026
GPT-5.4 Pro pricing by provider
Input, output, and batch rates, plus alternatives, for one provider at a time.
Model Details
General
- Creator
- OpenAI
- Family
- GPT
- Tier
- Flagship
- Context Window
- 128K
- Modalities
- Text, Image
Capabilities
- Tool Calling
- No
- Open Source
- No
Strengths & Limitations
Strengths
- Flagship-tier model with advanced reasoning capabilities
- Multimodal support for both text and image inputs
- 128K token context window for processing lengthy documents
- Latest generation GPT model with improved performance
- Strong performance on complex analytical and creative tasks
- Supports sophisticated mathematical and logical reasoning
- Advanced code generation and debugging capabilities
Limitations
- No tool calling or function calling support
- Proprietary model with no open-source weights available
- Smaller context window compared to some competing flagship models
- Higher computational requirements typical of flagship models
- No audio or video modality support
Key Features
•128K token context window
•Text and image input processing
•Advanced reasoning capabilities
•Multimodal understanding
•Complex mathematical problem solving
•Code generation and analysis
•Document analysis and summarization
•Creative writing and content generation
About GPT-5.4 Pro
GPT-5.4 Pro is OpenAI's flagship model in the GPT family, representing the latest generation of their large language models. As a flagship-tier model, it sits at the top of OpenAI's current model lineup, designed for complex reasoning, analysis, and multimodal tasks that require sophisticated understanding.
The model features a 128,000 token context window and supports both text and image inputs, enabling it to process documents, analyze visual content, and handle multimodal workflows. GPT-5.4 Pro demonstrates advanced capabilities in complex reasoning, mathematical problem-solving, code generation, and creative writing tasks that require deep understanding and nuanced responses.
GPT-5.4 Pro is typically deployed for demanding applications where model quality is prioritized over cost efficiency, including research assistance, complex analysis workflows, advanced content creation, and applications requiring sophisticated reasoning across text and visual inputs.
Common Use Cases
GPT-5.4 Pro is designed for complex, high-value applications where advanced reasoning and multimodal capabilities are essential. Common use cases include research assistance and academic analysis, complex document review and synthesis, advanced code development and debugging, creative writing and content strategy, multimodal data analysis combining text and images, mathematical and scientific problem solving, and sophisticated business analysis requiring nuanced understanding. Its flagship positioning makes it suitable for applications where model quality and reasoning depth are prioritized over cost efficiency or speed.
Frequently Asked Questions
How much does GPT-5.4 Pro cost per million tokens?
GPT-5.4 Pro pricing varies by provider and may include different rates for input and output tokens. Check the pricing table above for current rates across all available providers offering GPT-5.4 Pro access.
What is GPT-5.4 Pro best used for?
GPT-5.4 Pro excels at complex reasoning tasks, multimodal analysis combining text and images, advanced code generation, mathematical problem solving, and sophisticated research assistance. Its flagship-tier capabilities make it ideal for applications requiring deep understanding and nuanced responses.
Does GPT-5.4 Pro support function calling or tool use?
No, GPT-5.4 Pro does not include tool calling or function calling capabilities. For applications requiring structured API interactions or tool use, you may need to consider other models in OpenAI's lineup or implement custom prompt engineering approaches.