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Weflayr raises $2.5m: Evertrace spotted Romain Mazeries 195 days earlier

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Weflayr raises $2.5m: Evertrace spotted Romain Mazeries 195 days earlier

Weflayr has raised $2.5m in pre-seed funding, led by 13books Capital. The Paris-based company builds an AI gateway that chooses the right model for each request.

Evertrace spotted Romain Mazeries, co-founder of Weflayr, 195 days before the funding announcement.

Before the round

The timeline
Evertrace detected the signal11 April 2026
Funding announced23 October 2026
Time before the announcement195 days

On 11 April 2026, Evertrace detected the first signal of company formation for Romain Mazeries. That was 195 days before Weflayr's funding announcement.

Romain Mazeries, the former CEO of Mangopay, founded Weflayr with Noé Achache.

What they’re building

Companies that use several AI models need to decide which model to use for each task. Weflayr builds an intelligent routing layer that selects and orchestrates models per request.

It benchmarks models on a company's own production data and automates routing decisions on quality, speed, cost and data location.

The round

13books Capital led the $2.5m pre-seed round, with Founders Future, Kima Ventures, Plug and Play, Station F Ventures and angel investors including Roxanne Varza. Weflayr will use the funding to grow its engineering and AI research teams and support growth across Europe and the United States.

Read the funding coverage →

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