The register

NAVI-Orbital on YAM-9

Classified the scenes the satellite captured, described them in text and answered an operator's follow-up questions, all on board.

• L3 Launched: confirmed by a party with no stake, or by public data. Rests on c4.
• R2 Ran: own technical account. Rests on c1, c2, c3.

Operator	Loft Orbital (the satellite)
Developer	The paper's author
Host	YAM-9
Where	Earth orbit
Class	language
Hardware	"a heterogeneous compute cluster"; the flight processor is not named
Model or software	Gemma 3 4B, a vision-language model
Launched	28 Nov 2025
Ran	2026-04-16
Catalogue	YAM-9, number 66694; matched by name, the reviewer's judgement

What was said, and by whom

1. “On April 16, 2026, NAVI-Orbital achieved what is, to the authors' knowledge, the first in-orbit demonstration of a vision-language model performing autonomous multi-modal inference entirely onboard.”

   The paper's author: the experimenter. NAVI-Orbital: First In-Orbit Demonstration of a Zero-Shot Vision-Language Model for Autonomous Earth Observation, arXiv (preprint by the system's authors). Published 5 Jun 2026 (submission date on the page). Read 4 Oct 2026, abstract page in full.

2. “Loft Orbital's YAM-9 satellite, a multi-mission platform flying a heterogeneous compute cluster”

   The paper's author: the experimenter. NAVI-Orbital: First In-Orbit Demonstration of a Zero-Shot Vision-Language Model for Autonomous Earth Observation (full text), arXiv (preprint by the system's authors). Published 5 Jun 2026 (submission date on the abstract page). Read 4 Oct 2026, in part: about 15 excerpts of 74,500 characters.

3. “Gemma 3 4B”

   The paper's author: the experimenter. NAVI-Orbital: First In-Orbit Demonstration of a Zero-Shot Vision-Language Model for Autonomous Earth Observation (full text), arXiv (preprint by the system's authors). Published 5 Jun 2026 (submission date on the abstract page). Read 4 Oct 2026, in part: about 15 excerpts of 74,500 characters.

4. OBJECT_NAME: YAM-9; LAUNCH_DATE: 2025-11-28

   CelesTrak satellite catalogue: a public catalogue. Satellite catalogue record 66694, CelesTrak. Published undated (a live catalogue record; the access date is the date that matters). Read 4 Oct 2026, in full.

Claims to a first

• First vision-language model in orbit: contested. Starcloud reported running a Gemma model in orbit in December 2025. Whether that model was given images is not stated in what was read, and the paper does not mention Starcloud.

Notes

A preprint, not peer reviewed as far as its page shows. The accuracy it reports (88.16%) is for a benchmark on the ground; no in-orbit accuracy was found in the parts read.

Changed

Launch of the host satellite confirmed from the catalogue.

This record as data