Model release: GPT-6 Astra & GPT-6.1 Terra

Model release Provisional 74% confidence first seen 30 October 2026, 14:59

Type: Model release
Status: Provisional
First seen: 30 October 2026, 14:59
Latest source: 31 October 2026, 14:00
Sources: 2

GPT-6 Astra GPT-6.1 Terra OpenAI Agents’ benchmark Anthropic Claude Opus 5.5 The New Stack

Source coverage

30 Oct, 14:59 Model release: OpenAI & GPT-6.1 Terra The New Stack 31 Oct, 14:00 Model release: OpenAI & Anthropic The New Stack