Muse has recorded more than 2.5 million downloads since its launch, according to Sensor Tower data cited by Reuters, while Meta's shares have risen more than 20% since the product was introduced. The increase has added more than $200 billion to the company's market value, reflecting growing expectations that AI agents could become a significant commercial platform.

The latest enthusiasm extends beyond conventional chatbot functions. Muse is designed to perform tasks on behalf of users, including sending emails, shopping, arranging travel and making calls to businesses. The approach represents a shift towards AI systems capable of completing multi-step activities rather than simply generating text or answering questions.

However, the technology's rapid development is also highlighting challenges surrounding reliability, privacy and the role of human intervention. Reuters reported that Meta has been testing a "human concierge" system in which contractors handle certain calls initiated through Muse.

The experiment has raised questions among employees about whether human intervention could conflict with the product's promise of autonomous assistance. Meta has said the testing is intended to improve safety and privacy protections and that the feature will only be introduced more broadly when appropriate safeguards and disclosures are in place.

The issue reflects a wider challenge facing technology companies as AI agents move from experimental products towards services used for financial transactions, travel arrangements and communications. Greater autonomy creates additional requirements around identity verification, data protection, security and accountability.

Investors are therefore assessing more than download figures. Commercial adoption, user retention and the ability to deliver reliable automated services will determine whether AI agents can develop into significant revenue-generating businesses.

Meta's strategy also places pressure on competing technology companies to demonstrate progress in consumer AI while controlling infrastructure and development costs.

For the technology sector, Muse represents part of a broader transition from generative AI towards autonomous digital services. The coming months are likely to provide a clearer indication of whether consumer enthusiasm can translate into sustainable commercial adoption.