Model release: ChatGPT & GPT-5.1

Model release ● Confirmed 95% confidence first seen 12 November 2025, 00:00

Type: Model release
Status: Confirmed
First seen: 12 November 2025, 00:00
Latest source: 13 November 2025, 00:00
Sources: 4

ChatGPT GPT-5.1 GPT-5.1 Instant GPT-5.1 Thinking OpenAI GPT-5

Source coverage

12 Nov, 00:00 Model release: OpenAI & GPT-5.1 OpenAI official 12 Nov, 00:00 Model release: OpenAI & GPT-5.1 Instant OpenAI official 13 Nov, 00:00 Model release: OpenAI & GPT-5.1 OpenAI official 13 Nov, 00:00 Model release: OpenAI & ChatGPT OpenAI official