GPT-5.1
Model ● Covered in 7 stories + Follow
GPT-5.1 is an OpenAI GPT-5-series model that has been rolled out to developers via the API and to paid ChatGPT users, with updates aimed at more conversational responses and faster adaptive reasoning. Recent coverage also highlights work around its security posture, including an internal red-teaming system (GPT-Red) that reportedly compromised GPT-5.1 in 84% of scenarios on an indirect prompt-injection benchmark, and developer-facing tooling improvements such as apply_patch, shell tools, and expanded prompt caching. Outside safety and API updates, GPT-5.1 has also been used in evaluations such as a visualization-language study where it achieved higher judge scores than a baseline direct Vega-Lite approach.
Updated 12 September 2026
Specifications
No specifications recorded yet.
Latest developments
OpenAI Details GPT-Red: An Internal Automated Red-Teaming Model That Beat Human Red-Teamers 84% To 13% On Prompt Injection
MarkTechPost · 2 months ago ·
27
Microsoft Research releases Flint, a visualization language for the AI era
Microsoft · 2 months ago ·
12
How Tolan builds voice-first AI with GPT-5.1
OpenAI · 8 months ago ·
47
Update to GPT-5 System Card: GPT-5.2
OpenAI · 9 months ago ·
5
Introducing GPT-5.1 for developers
OpenAI · 10 months ago ·
32
GPT-5.1: A smarter, more conversational ChatGPT
OpenAI · 10 months ago ·
28
Q3 2026
Moonshot AI releases Kimi K3, a 2.8 trillion parameter open-weight model achieving frontier-class performance Open source release
OpenAI releases GPT-Red, an automated red-teaming system for identifying vulnerabilities in language models Product launch
- The Sequence Radar #897: Last Week in AI: China, Compression and the Open-Model Race
- OpenAI Details GPT-Red: An Internal Automated Red-Teaming Model That Beat Human Red-Teamers 84% To 13% On Prompt Injection
- Microsoft Research releases Flint, a visualization language for the AI era
Q1 2026
Q4 2025
OpenAI releases GPT-5.1 model with improved conversational abilities and new developer features Model release
Relationships
Products & technology
- OpenAI develops this model · 3 sources
- Derived from GPT-5 · 2 sources
- Tolan integrated with this model · 1 source
Competition
- GPT-Red competes with this model · 1 source