OpenRouter (@OpenRouter) announces Meta Muse Spark 1.3 is live. The multimodal reasoning model targets long-running agentic, multi-agent, and coding workflows: it tracks what it learns, handles conflicting inputs, and asks for clarification or confirmation when needed. OpenRouter lists 1M context, about $1.25/$4.25 per 1M tokens, and ~117 tok/s throughput.

Key Takeaways

  • ✓Official: meta/muse-spark-1.3 is live on OpenRouter for long-running agentic, multi-agent, and coding work.
  • ✓Designed to track learned context, reconcile conflicting inputs, and ask for clarification when needed.
  • ✓Specs: ~1M context; listed ~$1.25 in / $4.25 out per 1M tokens; a cheaper Contributor tier launched the same day.
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in: $1.25 / out: $4.25
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Cursor Composer (Agent Mode) · Claude Code (Anthropic)
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Up NextOpenRouter also ships Muse Spark 1.3 Contributor — cheap tier ~$0.10/$0.20
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