As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/m/generalist-gen-1-5/

# Generalist GEN-1.5

Generalist AI, GEN family. Status: current. Type: robotics model. Released: 2026-08-19.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Generalist AI partners (no public access announced) |  |  | https://generalistai.com/blog/gen-1.5 |

## Pricing

- Price not published.
- Last checked: not recorded

## Specs

- Input: video, image, text
- Output: action
- Context window: not published
- Max output: not published
- Open weights: no
- Licence: proprietary

## Where it stands

- Newer robotics models in the registry since its release: 4:
  - Praxis-1 (2026-09-30) https://postcutoff.com/m/praxis-1/
  - Helix 2.5 (2026-09-17) https://postcutoff.com/m/figure-helix-2-5/
  - UnifoLM-WLA-1.0 (2026-09-10) https://postcutoff.com/m/unifolm-wla-1-0/
  - Skild S1 (Skild Brain) (2026-08-25) https://postcutoff.com/m/skild-s1/
- Before it from Generalist AI: Generalist GEN-1 (2026-04-02) https://postcutoff.com/m/generalist-gen-1/
- Closed weights.

## What stands out

- One-shot learning of dexterous closed-loop tasks (first): Learns new tasks in-context from one demonstration video: 59% average success one-shot across 10 tasks; 83% with few-shot adaptation (10 gradient steps on 5 minutes of data). Generalist says it is the first model it knows of to show this across a wide range of dexterous closed-loop tasks. Source: https://generalistai.com/blog/gen-1.5
- 30-second video memory, 100 Hz actions: Takes video (30 s memory window), sensors, language and proprioception and outputs 100 Hz action trajectories. Source: https://generalistai.com/blog/gen-1.5

## Notes

Released 6 days before Skild S1, which makes a similar one-video in-context claim for long-horizon tasks. Company-reported. Video: https://www.youtube.com/watch?v=1cllCVK-9lo


Model page: https://postcutoff.com/m/generalist-gen-1-5/