GPT-5 pro is the highest-capability tier in the GPT-5 family, offering extended compute for the most demanding tasks, deeper reasoning, more thorough analysis, and higher-quality output for problems where standard GPT-5 reaches its limits.
import { streamText } from 'ai'
const result = streamText({ model: 'openai/gpt-5-pro', prompt: 'Why is the sky blue?'})GPT-5 pro became available on N/A as the premium tier of the GPT-5 model family on AI Gateway. It applies more compute per request than the standard GPT-5, enabling deeper reasoning, more thorough analysis, and higher-quality output on the most demanding tasks.
The pro tier exists for the subset of problems where standard GPT-5 capability is not enough. Complex research synthesis, thorough code audits, nuanced legal analysis, and multi-factor strategic planning all benefit from the additional reasoning depth GPT-5 pro provides, in exchange for higher cost and potentially longer response times.
GPT-5 pro is typically deployed selectively. Routine traffic flows through GPT-5 or GPT-5 mini, while specific high-value queries are routed to the pro tier. This pattern maintains quality where it matters while keeping overall costs manageable.