GPT-5

Overview

GPT-5 is OpenAI’s flagship general-purpose model, built as a unified system that can dynamically adjust reasoning depth based on the complexity of a request. It combines fast default responses with deeper “thinking” modes for difficult problems, while supporting multimodal inputs, tool use, and long-context processing. GPT-5 is positioned as the best choice when you need a single model to handle complex reasoning, creative generation, and structured tool-based workflows.

Capabilities

• Adaptive reasoning with controllable effort levels for deeper analysis
• Multimodal understanding for text and image inputs
• Long-context comprehension for large documents and codebases
• Tool use and structured outputs for agent workflows

Strengths

• Strong performance across reasoning, coding, and creative tasks
• Flexible balance of speed versus depth for mixed workloads
• Reliable instruction-following for structured tasks and automation
• Suitable for end-to-end agentic workflows with tools

Limitations and Considerations

• More resource-intensive than GPT-4-class and smaller GPT-5 models
• Overkill for simple classification or rote generation tasks
• Feature availability can depend on API or platform settings

Best Use Cases

GPT-5 is the go-to model for:

• Software development and code generation
• Scientific research and analysis
• Mathematical problem-solving
• Creative and professional writing
• Complex decision support systems