New AI models this week (Oct 21 to Oct 27, 2026)

4 AI model releases in our dataset from Oct 21, 2026 to Oct 27, 2026, from 3 vendors. The newest is GPT-6.1 Terra (OpenAI), released Oct 26, 2026.

Last 24 hours

1 release dated Oct 26, 2026 or Oct 27, 2026: GPT-6.1 Terra (OpenAI). Release dates are day-level, so this means releases dated yesterday or today.

Window Oct 21, 2026 to Oct 27, 2026 (7 days ending today, America/Chicago), recomputed hourly · dataset last verified Oct 26, 2026 · Reported from vendor pages, not run by us · this lists releases we track, not every model a vendor shipped · Markdown

New AI models this week (Oct 21 to Oct 27, 2026)
Date	Model	Vendor	Status	Release date source
Oct 26, 2026	GPT-6.1 Terra	OpenAI	generally available	source · OpenAI API changelog. The announcement page shows only the year.
Oct 23, 2026	Kimi K3.1 Pro	Moonshot AI	generally available	source · Vercel's AI Gateway changelog, dated Oct 23, 2026, lists K3.1 Pro as available that day; Artificial Analysis also dated its launch write-up Oct 23. Moonshot's blog carries no date; Reuters reported the launch on Oct 24 Beijing time.
Oct 23, 2026	Kimi K3.1 Pro Highspeed	Moonshot AI	generally available	source · Vercel's AI Gateway changelog, dated Oct 23, 2026, lists both models as available that day. Moonshot's launch blog names Highspeed as released with K3.1 Pro but carries no date.
Oct 23, 2026	Nemotron 3.5 Bolt E4B (4GB)	NVIDIA	generally available	source · Date of the public Hugging Face release; NVIDIA's Oct 15 blog announced it ahead of time.