From the source

GPT-5.1: A smarter, more conversational ChatGPT

Model update

OpenAI is upgrading the GPT-5 series with warmer, more capable models and new customization options for ChatGPT's tone and style.

GPT-5.1 begins rolling out today to paid users.

From the source
We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.1 starts rolling out today to paid users.
openai.com

Other stories

Sullivan & Cromwell brings legal expertise into agreement review
Sullivan & Cromwell builds Agreement Analyzer with OpenAI
OpenAI· 15 Oct
SentinelOne cuts malware analysis from weeks to hours
SentinelOne uses OpenAI Daybreak to speed reverse engineering from weeks to hours.
OpenAI· 14 Oct
Amp puts AI agents to work beyond code with OpenAI models
OpenAI· 14 Oct
How Block is building AI-powered security with OpenAI technology
Block uses OpenAI Daybreak to speed security operations

Announced: 12 Nov 2025
Detected: 03 Aug 2026 21:11 UTC (+263d after)

ModelsGPT-5.1

Visit source ↗openai.com

OpenAI· 14 Oct

How Third Moment Research runs 10,000 agents for 36+ hours

OpenAI· 14 Oct

The EU’s next chapter in AI is agentic

OpenAI reports agentic AI use now accounts for over half of EU enterprise output tokens.

OpenAI· 14 OctResearch paper

GPT-5.1: A smarter, more conversational ChatGPT

From the source

Sullivan & Cromwell brings legal expertise into agreement review

SentinelOne cuts malware analysis from weeks to hours

Amp puts AI agents to work beyond code with OpenAI models

How Block is building AI-powered security with OpenAI technology

How Third Moment Research runs 10,000 agents for 36+ hours

The EU’s next chapter in AI is agentic