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العربية
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SIGNAL

Saturday, June 27, 2026

5 stories
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→ signal --date=2026-06-27

Today's brief captures a pivotal moment: OpenAI retires the last GPT-4 model while simultaneously pushing into AI-powered cybersecurity with Daybreak. Meanwhile, the UAE's CNTXT AI raises $60M proving sovereign AI is real demand, not just government rhetoric. Cloudflare's agent-friendly temporary accounts signal that infrastructure is adapting to an agent-first web — and MENA's $65M+ weekly funding shows the region's ecosystem maturing beyond hype into actual deal flow.

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GPT-4.5 retires today, OpenAI pushes AI security with Daybreak, and UAE's CNTXT AI raises $60M for sovereign infrastructure

AI OpenAI Help Center

GPT-4.5 Retires From ChatGPT Today, Ending the GPT-4 Era

OpenAI has officially retired GPT-4.5 from ChatGPT as of June 27, 2026, marking the end of the GPT-4 model family in the consumer app. All existing GPT-4.5 conversations and custom GPTs automatically migrate to GPT-5.5.

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Security The Hacker News

OpenAI Daybreak: AI-Powered Cybersecurity Goes Mainstream

OpenAI expanded its Daybreak security platform with the full release of GPT-5.5-Cyber and Codex Security, bringing agentic vulnerability detection, patch generation, and remediation verification to security teams.

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MENA Wamda

UAE's CNTXT AI Raises $60M Series A for Sovereign AI Infrastructure

Abu Dhabi-based CNTXT AI closed a $60 million Series A round co-led by AI71 and BlueFive Capital to scale its sovereign AI infrastructure platform for enterprise and government customers globally.

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DevTools Cloudflare Blog

Cloudflare Lets AI Agents Deploy Code With No Account Needed

Cloudflare introduced Temporary Accounts on Workers, allowing any AI agent to run `wrangler deploy --temporary` and get a live deployment in seconds without creating an account or authenticating.

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Funding Entarabi

MENA Startups Raised $65M+ in One Week as AI Leads Funding

MENA startups secured over $65.5 million in disclosed funding during the third week of June 2026, with AI-related deals dominating the pipeline across the UAE, Saudi Arabia, and Egypt.

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