sulphur-2-base

Updated
07.07.2026
Thinking
Embedding
Run

Run sulphur-2-base locally with Atomic Chat — offline, private, and free. No cloud, no usage limits.

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At a glance

  • License: Apache 2.0 — free for commercial use
  • Context length: 128K tokens
  • Languages: 29 languages, English-optimized
  • Minimum hardware: 16 GB RAM, runs on Apple Silicon
  • Strengths: reasoning, coding and multilingual document understanding

Overview

sulphur-2-base is an open model you can download and run locally in Atomic Chat — fully offline and private.

  • Parameters: 9B
  • Context length: 421K tokens
  • Runs: locally on your own hardware, no cloud
  • Cost: free — no API keys, no usage limits

Highlights

  • Runs locally — download once and use it fully offline in Atomic Chat.
  • Private by default — prompts and data never leave your device.
  • No usage limits — no API keys, no per-token fees.
  • One-click setup — install from the Atomic Chat catalog and start chatting.

Running it locally

Open sulphur-2-base in Atomic Chat and it downloads with one click, then runs entirely on your machine — no account and no internet connection required after the download.

Desktop
macOS
(M1 or better)
Download
Windows
(x64)
Download
Linux
(x86_64)
Download

Frequently asked questions

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