GPT‑5.1 in Foundry: A Workhorse for Reasoning, Coding, and Chat

Azure AI Foundry is unveiling OpenAI’s GPT-5.1 series, the next generation of reasoning, analytics, and conversational intelligence.

The following models will be rolling out in Foundry today:

• GPT-5.1: adaptive, more efficient reasoning
• GPT-5.1-chat: chat with new chain-of-thought for end-users
• GPT-5.1-codex: optimized for long-running conversations with enhanced tools and agentic workflows
• GPT-5.1-codex-mini: a compact variant for resource-constrained environments

Learn more here!