Peec AI, the Berlin-based AI search visibility platform, has added support for Muse Spark — the large language model powering Meta's personal AI agent Muse, which Meta introduced on September 8, 2026. Marketing teams and agencies can now measure brand visibility, sentiment, and cited sources inside Muse Spark, alongside the platforms Peec already tracks: ChatGPT, Google AI Mode, Google AI Overviews, Gemini, Perplexity, Microsoft Copilot, Claude, DeepSeek, Qwen, Naver, and Mistral.

Peec describes the new coverage as the closest approximation brands have to measuring their performance inside Muse — a meaningful claim given Muse's explosive start (2.8 million downloads in its first 12 days, the fastest consumer-AI ramp of the year). As personal agents become the interface between consumers and information, the GEO battleground expands from "mentioned by ChatGPT" to "recommended by my agent" — a channel marketers could not measure at all until this week.

The company also reported scale: more than 3,000 brand and agency customers, over $15 million in annual recurring revenue since launching at the end of 2025, and $40 million raised from investors. AI visibility is having its breakout year — our best AI visibility tools roundup covers the category, and Peec is one of the eight platforms in it.

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