# 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.

Window: 2026-10-21 to 2026-10-27 (7 days ending today, America/Chicago) · Dataset last verified: 2026-10-26 · Canonical: https://theagenticweekly.com/models/this-week · All models: https://theagenticweekly.com/models · Month page: https://theagenticweekly.com/models/releases/2026-10

## 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.

This lists the releases in our dataset for the window, not every model a vendor shipped. Every row links to the vendor page that states the release date. We did not run any of these models (evidence: Reported).

| Date | Model | Vendor | Status | Release date source |
|---|---|---|---|---|
| 2026-10-26 | [GPT-6.1 Terra](https://theagenticweekly.com/models/gpt-6-1-terra) | OpenAI | generally available | https://developers.openai.com/api/docs/changelog |
| 2026-10-23 | [Kimi K3.1 Pro](https://theagenticweekly.com/models/kimi-k3-1-pro) | Moonshot AI | generally available | https://vercel.com/changelog/kimi-k3-1-pro-and-kimi-k3-1-pro-highspeed-are-available-now-in-ai-gateway |
| 2026-10-23 | [Kimi K3.1 Pro Highspeed](https://theagenticweekly.com/models/kimi-k3-1-pro-highspeed) | Moonshot AI | generally available | https://vercel.com/changelog/kimi-k3-1-pro-and-kimi-k3-1-pro-highspeed-are-available-now-in-ai-gateway |
| 2026-10-23 | [Nemotron 3.5 Bolt E4B (4GB)](https://theagenticweekly.com/models/nemotron-3-5-bolt-e4b) | NVIDIA | generally available | https://huggingface.co/nvidia/NVIDIA-Nemotron-3.5-Bolt-E4B-4GB |

- **GPT-6.1 Terra** (OpenAI, Oct 26, 2026): OpenAI's fast, lower-cost GPT-6.1 model for visual reasoning, computer use and writing; the successor to GPT-5.6 Terra, priced at half of GPT-6.1 Sol. Date note: OpenAI API changelog. The announcement page shows only the year.
- **Kimi K3.1 Pro** (Moonshot AI, Oct 23, 2026): Moonshot's post-trained successor to Kimi K3, a 3T-class model with a 1M-token context, live in Kimi apps and the API on Oct 23, 2026; open weights are promised by Nov 4. Date note: 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.
- **Kimi K3.1 Pro Highspeed** (Moonshot AI, Oct 23, 2026): The faster serving tier of Kimi K3.1 Pro: Moonshot says it delivers 2 to 3 times the output speed for interactive coding and agents, at twice the per-token price, launched alongside K3.1 Pro on Oct 23, 2026. Date note: 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.
- **Nemotron 3.5 Bolt E4B (4GB)** (NVIDIA, Oct 23, 2026): NVIDIA's compact open-weights text model built on Gemma-4-E4B, quantized to roughly 4GB (Q4_K_M) for laptops and edge devices; released Oct 23, 2026. Date note: Date of the public Hugging Face release; NVIDIA's Oct 15 blog announced it ahead of time.

Data licence: CC BY 4.0. Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0.