GPT-5.4
GPT-5.4 is OpenAI's flagship multimodal model with text and image capabilities, featuring a 128K token context window for complex reasoning tasks.
API Pricing
Cheapest on OpenAI — 43% below avg| Provider | Input / 1M | Output / 1M | Cached / 1M |
|---|---|---|---|
| $1.25 | $7.50 | - | |
| $2.50 | $15.00 | $0.250 | |
| $2.50 | $15.00 | - | |
| $2.50 | $15.00 | - |
Prices updated daily. Last check: Jul 13, 2026
Performance & Benchmarks
Source: Artificial Analysis →Reasoning & Knowledge
- GPQA Diamond92.0%
- Humanity's Last Exam41.6%
Coding
- SciCode56.6%
Agentic & Tool Use
- Terminal-Bench Hard57.6%
- Terminal-Bench v2.178.3%
- τ²-bench87.1%
- τ-bench Banking30.3%
Instruction & Long Context
- IFBench73.9%
- Long-Context Reasoning74.0%
Benchmarks measured Jul 2026. Scores are independent evaluations, not vendor-reported.
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
- Multimodal capabilities support both text and image inputs
- 128K token context window enables processing of lengthy documents
- Flagship-tier performance for complex reasoning tasks
- Part of OpenAI's established GPT ecosystem with broad API support
- Strong performance across diverse domains including coding and analysis
- Maintained by OpenAI with regular updates and improvements
- Wide provider availability across major cloud platforms
Limitations
- No tool calling functionality available
- Proprietary model with no open-source weights
- Smaller context window compared to some competing flagship models
- Limited to text and image modalities without audio or video support
- Higher computational requirements typical of flagship-tier models
Key Features
About GPT-5.4
Common Use Cases
GPT-5.4 is designed for sophisticated applications requiring flagship-level capabilities, including complex document analysis, multimodal content creation, advanced coding assistance, and research tasks. Its combination of large context window and vision capabilities makes it suitable for analyzing lengthy documents with embedded images, conducting detailed visual analysis, and handling multi-step reasoning problems. Organizations typically choose GPT-5.4 for high-value use cases where model quality is prioritized over cost, such as strategic analysis, complex customer support, advanced content generation, and applications requiring nuanced understanding of both textual and visual information.
Frequently Asked Questions
How much does GPT-5.4 cost per million tokens?
GPT-5.4 pricing varies by provider and usage type (standard vs batch processing). Input and output tokens are typically priced differently, and image processing may incur additional costs. Check the pricing table above for current rates across all providers offering GPT-5.4 access.
What is GPT-5.4 best used for?
GPT-5.4 excels at complex reasoning tasks, multimodal analysis combining text and images, advanced coding assistance, and applications requiring large context understanding. Its flagship-tier capabilities make it ideal for strategic analysis, research tasks, sophisticated content creation, and scenarios where high-quality outputs justify the computational cost.
Does GPT-5.4 support function calling and tool use?
No, GPT-5.4 does not include built-in tool calling functionality. For applications requiring structured tool integration and function calling, you may need to implement custom parsing of the model's text outputs or consider alternative models that include native tool calling capabilities.