August 11, 2025

Big strategic move by OpenAI

OpenAI has released its first open-weight language models since GPT-2, marking a significant shift in strategy. The new models, called GPT‑OSS, are fully downloadable and commercially usable under the Apache 2.0 license. Two variants are available: gpt‑oss‑120b: A 120-billion parameter model that matches or exceeds the performance of OpenAI’s internal o4‑mini model. gpt‑oss‑20b: A smaller

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Is Performance Max Cannibalizing Search?

A study of 500+ accounts shows that Performance Max often serves ads for exact-match search terms, even when Search campaigns contain those keywords. This overlap happened in 91.5% of accounts, raising concerns about Search campaign cannibalization. In most cases, Search outperforms PMax on CTR and conversion rate when both serve the same query. Cannibalization usually

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Sitelinks now influence Ad Strength in Performance Max campaigns

Google has started factoring sitelinks into its evaluation of asset group diversity, alongside headlines, descriptions, and creatives. This means asset groups without sitelinks may be rated lower (e.g. “Good” instead of “Excellent”). While Ad Strength isn’t a direct performance factor, it’s a key diagnostic signal. Found by Hana Kobzová & VojtÄ›ch Audy

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AI tools made open source software developers 19 procent slower

A recent study by METR found that experienced open-source developers were 19% slower when using AI coding tools like Cursor Pro and Claude Sonnet. Despite expecting a speed boost, developers spent extra time prompting, reviewing, and correcting AI output. 44% of AI suggestions were used, and complex codebases worsened performance. While the experience felt easier,

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Overlap between AI citations and top 10 Google Search Rankings

Semrush analyzed 5,000 keywords and found that Perplexity aligns most closely with Google Search, showing a 91 percent domain and 82 percent URL overlap. Google AI Overviews followed with 86 and 67 percent, while Google AI Mode had lower overlap at 54 and 35 percent. ChatGPT showed the least similarity to Google, aligning more with

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Specific Audiences only in Google Merchant Center

Since when can you show Google Merchant Center promotions to specific audiences only? You can now. GMC promotions those special offer banners like “10% off” or “Free shipping” have traditionally been shown broadly to all users. But now, Google has quietly introduced the ability to limit promotions to specific audience segments. Found by Felix Mayo

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