France Finds OpenAI, Google, Anthropic Control 84% of Global AI Agent Market

France's Autorité de la concurrence published Opinion No. 26-A-05 — a 3,700-page investigation concluding that three AI labs control over 84% of the global AI agent market, calling for mandatory interoperability standards and urgent regulatory intervention.

Key Points:

• The authority built its own AI agents, asked them 550 shopping-related questions, and logged exactly which websites they visited and cited — a direct behavioral methodology for measuring agent market power.

• OpenAI, Google, and Anthropic together hold over 84% of the global autonomous AI agent market, based on Sensor Tower data from May 2026.

• The authority called for mandatory interoperability standards, open data access requirements, and regulation of default AI placement by platform gatekeepers.

• The 3,700-page scope signals this is not a preliminary inquiry but a near-final market assessment with specific regulatory recommendations.

• The investigation runs parallel to similar concerns from the EU, UK, and FTC — suggesting coordinated international regulatory pressure is building.

Implications:

An 84% concentration in a technology category that did not exist three years ago is extraordinarily high by historical standards — the AI agent market is consolidating faster than regulators can respond. Mandatory interoperability requirements — if enacted — would force platforms to allow users to switch AI providers without losing data, workflows, or agent configurations.

Why It Matters: The 84% concentration figure quantifies a vendor risk that is otherwise difficult to articulate. Organizations deeply integrated with a single AI agent platform now have concrete data supporting the case for provider-agnostic architectures.