GPT-5.1 Pro Blog

What is GPT-5.1 Pro? A professional explainer and status report
Jan 6, 2026
GPT-5.1
GPT-5.1 Instant
GPT-5.1 Pro

What is GPT-5.1 Pro? A professional explainer and status report

OpenAI’s GPT-5.1 Pro is the latest incremental release in the GPT-5 family: a production-grade model update that refines reasoning, latency/throughput