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Using OpenRouter Free Models via a pi Agent Inside Muse and GrokBot: A Community Tip

X user @MinLiBuilds shares a tip: ask Muse or GrokBot to install a pi agent with your OpenRouter key for free models, with caveats.

tau · October 10, 2026

#OpenRouter #free-models #AI-agent #Muse #GrokBot

Using OpenRouter Free Models via a pi Agent Inside Muse and GrokBot: A Community Tip

The original author is X user @MinLiBuilds, who shared this method in a post dated October 9, 2026, describing how to set up a pi agent from inside a Muse or GrokBot chat window.

Screenshot-style illustration of a chat window sending a pi agent install instruction with an OpenRouter API key placeholder

Image source: @MinLiBuilds X post

The core of the tip is a single instruction. Open Muse or GrokBot and send the pi agent install request together with your own OpenRouter key (translated from the author's original Chinese instruction):

"Help me install this https://t.co/oYsrMK7WmL and my key is OPENROUTER_API_KEY= <your OpenRouter key>"

According to the author, sending this installs and configures the pi agent, connects OpenRouter's free models, and refreshes the free-model list daily. The author adds that mentioning OpenRouter, Pi, free tokens, or free models (in Chinese or English) starts this flow.

Caveats stated by the author

  • Dots is excluded: the author states Dots refuses to use the user's token, so it is not covered by this method.
  • Install-target link: the expanded destination of the short link in the instruction (https://t.co/oYsrMK7WmL) was not included in the supplied raw evidence. Verify the actual address before opening it.
  • Separate from GrokBot's own quota: asked whether free models used through pi replace GrokBot's own usage cap, the author replied it is "different". The pi setup is described as a separate thing you can extend with additional skills for organizing information, writing, and task work.
  • Effect on model quality: asked whether this affects the strength the questioner attributed to GrokBot under the name 'opus5.5', the author replied there is "no problem, this is all normal usage". That is the author's claim, not an independently verified fact.

Checks before trying it

  1. Do not paste your OpenRouter API key into a public room or timeline. Use a private 1:1 chat or DM window where possible.
  2. After handing over a key, check usage and limits on your OpenRouter dashboard.
  3. Phrases like "daily auto-refresh" and "never-ending tokens" are the original author's promotional framing. Actual free-model availability and limits follow OpenRouter's own policies.
  4. Confirm what the short link's real destination (the linked install target) is before opening it. The supplied material does not include the expanded address.

Original source