Nous Research
Open Weights Lab · USA

Nous Research

Open-weights craft house.

Founded 2023
HQ Remote
Country USA
Models tracked 2
Status Open Weights

The Lab

Founded in 2023 as an independent research collective rather than a venture-backed lab, Nous Research occupies a unique position in the AI landscape. The structure is intentionally small, the team is distributed, the output is craftsmanship-focused — meticulously fine-tuned models released as open weights, designed for the agentic-builder community that values control over scale.

The 2026 flagship is Hermes 4 — an open-weights agent model with native persistent memory, designed to compound intelligence as it accumulates skills and conversations. Hermes Vision 2 added multimodal screen-reading for vision agents. The cost story is the differentiator: both models are free to download, free to run on any hardware that can host them, with the indie-builder community running them on $9/month Hostinger VPS instances.

The catch is exactly the strength. Nous is not a venture-backed frontier lab and isn't trying to be. There is no Hermes 5 racing to match GPT-5.5 on every benchmark. The models won't be the absolute best at any single category. What they will be is craftable, ownable, and ecosystem-friendly — characteristics that matter to the indie builder economy but not necessarily to enterprise procurement.

Recent Coverage

Models

Hermes 4

Agent

Open-weights agent model with native memory architecture. Free to download and run, popular with the $5/month-VPS builder ecosystem. Compounding intelligence as it accumulates skills.

Context 200K
Released 2026-03
Input Free
Output Free
Text

Best for

  • self-hosted agents
  • persistent memory workflows
  • indie builders

Hermes Vision 2

Multimodal

Open-weights multimodal variant. Stronger than most open vision models on chart and screenshot understanding. Common pairing with Hermes for agent screen-reading workflows.

Context 128K
Released 2026-04
Input Free
Output Free
TextImage

Best for

  • vision agents
  • screenshot analysis
  • self-hosted multimodal

When to Pick Nous Research · When to Pick Someone Else

✓ Pick Nous Research when

  • Self-hosted agentic workflows on a budget ($5-100/month VPS)
  • Indie builder ecosystem where you need persistent memory in your agent
  • Custom skill stacks tuned to your specific workflow
  • Open-weights model that compounds intelligence as you use it
  • Telegram, Discord, Slack agent deployments at near-zero ongoing cost

Explore the other 11 labs

Each lab in the atlas comes with its own positioning, model line, and use cases. The point of organising the AI landscape by lab is that the answer to "which model should I use" almost always starts with "which lab is closest to what I'm trying to do."