GPT-5

GPT-5 is OpenAI's flagship model, handling text, images and tools with strong reasoning, coding and agentic ability. It powers ChatGPT and is available through the API.

It is the default choice for general assistants where you want top-tier quality across writing, analysis, coding and tool use in one model.

Best for

• General-purpose assistant and research
• Agentic, multi-step tasks and tool use
• Coding and debugging
• Image understanding and analysis

Strengths & how it compares

• Among the strongest models for reasoning and coding.
• Largest app ecosystem and plugin/tool support of any assistant.
• Vs Gemini 2.5 Pro: smaller context window but broader ecosystem; vs Claude: similar quality with a different, more concise style.