VIII.Agent · Muse Code
Muse Code
Meta's Muse Spark 1.2 — the brain behind their first coding agent. Describe something, watch it build live.
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Muse Spark 1.2 · Meta · Live
Muse Code
No OpenRouter key — see below
Muse Spark 1.2 — Meta's coding model, the brain behind their new Muse Code agent, on today's expanded global access. Type a prompt, watch it build live as it goes. Builds and chat history both survive a refresh.
co-trained with its harnessbuilt for long-horizon work1M contextreasons before it writes
Prompt
Describe something. Muse Spark builds it.
It previews live as it builds
Your build appears here — live.
Ask for something visual and it renders instantly. Hit Save build to keep it.
Saved builds0
Nothing saved yet — build something and hit Save build.
Conversation history0
Your chats auto-save here — they survive a refresh and live in your workspace folder.
Saved to ~/.agentic-os/muse-coder-workspace/ — builds as HTML, chats as JSON + readable transcript.
Running Muse Spark 1.2 — Meta's coding model on today's expanded global access, via OpenRouter. 1M-token context; the same brain Muse Code runs. Muse Code docs OpenRouter