Archive | Open Garden (en)

Open Media

Summer hits 2026: five ad tech stories that shape the fall agenda

Sep 2, 2026

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9 min read

Summer hits 2026: five ad tech stories that shape the fall agenda

From Nielsen's $2.15 billion bid for DoubleVerify to ChatGPT Ads landing in France, here is what each of the summer's moves says about where the market is heading.

Nicolas Jaimes

Retail media

Sep 1, 2026

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4 min read

Advertima wants in-store retail media held to digital's measurement standards

The Swiss vendor's computer vision counts who actually looks at a store screen, picks the next spot in real time and ties that exposure to a purchase – and it is now looking at France.

Nicolas Jaimes

AI for media

OpenAI switches on ChatGPT ads in France: five takeaways from six months of buildout

Aug 26, 2026

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5 min read

OpenAI switches on ChatGPT ads in France: five takeaways from six months of buildout

In six months OpenAI has turned a $60 CPM pilot into something close to a full ad platform, but nobody has yet shown the ads produce sales that would not have happened anyway.

Nicolas Jaimes

AI for media

IAB moves to measure AI agents' ad influence, but platforms still hold the evidence

Aug 25, 2026

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5 min read

IAB moves to measure AI agents' ad influence, but platforms still hold the evidence

Due Nov. 12, the framework has to define how to credit an ad an AI agent read on its way to a recommendation or a purchase, at the exact point where the signals between a crawl, a generated answer and a conversion stop connecting.

AI for media

AI Overviews are coming: an advertiser's homework before it hits France

Jul 15, 2026

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6 min read

AI Overviews are coming: an advertiser's homework before it hits France

Four priority moves to get ahead of Google's AI-generated answers, according to search and AI-visibility specialists

Nicolas Jaimes

Open Media

European Media Marketplace: Equativ pools European media and data to strengthen the Open Web

Jul 7, 2026

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3 min read

European Media Marketplace: Equativ pools European media and data to strengthen the Open Web

By bringing together the inventory, first-party data and activation technologies of major European media, telecom and e-commerce companies, Equativ wants to make the Open Web easier and more efficient to buy. Its European Media Marketplace promises standardized audience segments, cross-channel activation and more than 70% of advertisers’ budgets going toward working media.

Nicolas Jaimes

Ed Dinichert (Criteo): "We want our Commerce Graph to become an intelligence layer accessible everywhere – from CTV to ChatGPT – and through any media buyer's tools"

Jul 1, 2026

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7 min read

Ed Dinichert (Criteo): "We want our Commerce Graph to become an intelligence layer accessible everywhere – from CTV to ChatGPT – and through any media buyer's tools"

Ed Dinichert, Criteo’s Chief Customer Officer, attended the Cannes Lions. Behind the company’s announcements about ChatGPT, curation and the launch of an MCP server lies a single strategy: turning Criteo’s Commerce Graph into a universal intelligence layer embedded across all the environments where buyers and publishers already operate.

Nicolas Jaimes

AI for media

Concord raises $3 million to build the agentic infrastructure for digital media buying

Jun 23, 2026

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3 min read

Concord raises $3 million to build the agentic infrastructure for digital media buying

The French startup wants to automate the operational layer of media buying by connecting AI agents to major advertising platforms. Already working with advertisers, holdcos and independent agencies, Concord positions its technology as an alternative to offshoring - and promises to cut campaign execution time by as much as 70%.

Nicolas Jaimes

AI for media

Prisma Media launches Adventic, its "seller agent" to automate direct deals

Jun 22, 2026

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4 min read

Prisma Media launches Adventic, its "seller agent" to automate direct deals

With Adventic, Prisma Media wants media agencies to query, plan and buy its ad inventory through an AI agent, starting with digital before extending to print. Still early, but telling about how publishers intend to take back control of agentic advertising.

Nicolas Jaimes