GPT 5.3 Codex is now on AI Gateway

GPT 5.3 Codex is now available on AI Gateway, combining the coding strengths of GPT-5.2-Codex with the reasoning depth of GPT-5.2 in a single unified model.

• •The model is 25% faster and more token-efficient than its predecessors
• •Built for long-running agentic work covering research, tool use, and multi-step execution across the full software lifecycle
• •Supports mid-task steering without losing context, allowing dynamic adjustments during complex workflows
• •Better interprets underspecified prompts for web development, defaulting to more production-ready output
• •AI Gateway provides a unified API with observability, Bring Your Own Key support, intelligent provider routing, and automatic retries

This summary was automatically generated by AI based on the original article and may not be fully accurate.