Gargantua Labs  ·  Core systems for AI  ·  est. 2026

Building the core systems AI needs.

AI is advancing fast, but the systems around it are still incomplete. Gargantua Labs builds foundational technology for memory, adaptation, control, and security so future AI systems can become more capable, reliable, and safe.

Introducing DeltaWrite ↗
1Product in MVP
SeedRound open
2026Founded
CABased in California
§01 — Products

What we’re shipping.

One product in MVP today, with more core systems in the pipeline. Operator-grade and shipping to early integration partners. New work graduates to public when there is a real user, a real workload, and a defensible technical edge.

AIMVP
Adaptive inference

DeltaWrite: bounded persistent inference-time adaptation for frozen LLMs.

Inject new weights into a deployed AI model mid-forward-pass — without changing the original. Install new facts. Patch a fresh jailbreak before users notice. Reverse any change in milliseconds. The base model stays identical, byte for byte.

AI · Inference · MVP
1 product in MVP · more core systems in pipelineAll products →
§02 — Writing

From inside the lab.

Field notes, technical essays, and product post-mortems. How a small lab thinks about adaptive inference, the core systems production AI is missing, and the operator economics of building them.

Editorial illustration for 'The shape of a bounded write': a single thread of warm color reaches into a tall, dark form, while other paths pass it by.
Technical note · DeltaWrite · 2026-04-21

The shape of a bounded write.

How DeltaWrite registers a bounded change in a frozen language model — five properties, the geometry that keeps them composable, and the regimes where the construction does and does not hold.

All writing →
§03 — Founder

Built by a serial founder who ships.

Gargantua was founded in 2026 by Nathan Peterson. Two decades of building software and AI companies — now building the core systems production AI is missing.

Nathan Peterson, founder of Gargantua Labs
Nathan Peterson
Founder & CEO

Two-decade serial founder. Previously built a global software development company; now operates Gargantua Labs and builds core systems for AI.

About the lab →
§04 — Invest

Back the lab building AI’s missing core systems.

We’re raising a seed round to scale engineering on DeltaWrite, expand integrations with frontier-model partners, and ship the next core systems in the pipeline. Conversation-first. If you back technical founders building durable infrastructure, we’d like to talk.

Request an intro call →