Pondero Brief - JUNE 25TH, 2026
Three hard dates this week: GPT-4.5 out Saturday, Continue.dev export closes July 15, Fable 5 biometric gate opens July 8.
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OpenAI's sunset closes in 3 days. Also: Continue.dev export deadline, Fable 5 biometric gate, and more.
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JUNE 25TH, 2026 · BY JONATHAN HILDEBRANDT
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OpenAI removes GPT-4.5 from ChatGPT this Saturday, June 27, closing the 30-day sunset window it opened May 28. API access stays put; the ChatGPT-facing surface does not. If you have a workflow pinned to GPT-4.5 inside ChatGPT, it breaks in three days. Audit before the weekend, not after.
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See the Continue.dev migration guide →
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Claude Tag lands in Slack for Enterprise
JUNE 25TH · PONDERO NEWSDESK
Anthropic's beta keeps thread context across a full Slack conversation when you @-mention it. For teams already on Slack plus Claude, it is the first native always-on context integration, aimed straight at the Glean and Guru category.
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Anthropic sets July 8 biometric deadline for Fable 5
JUNE 25TH · PONDERO NEWSDESK
Identity verification by July 8 is now the prerequisite to restore Fable 5 access, the first hard date in the Fable saga. If you build on Fable 5, you need a verification plan this week.
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Gemini 3.5 Pro slips to July. Google broke Sundar Pichai's I/O commitment; model stays in limited Vertex AI enterprise preview. Treat July as the earliest realistic production window. Gemini changelog →
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Three Google researchers leave in seven days. Arthur Conmy (DeepMind alignment) joins Anthropic on June 25, after Noam Shazeer went to OpenAI and John Jumper to Anthropic the same week. Alignment talent is concentrating away from Google fast. Source →
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Make automation. Native AI Actions, runs workflows like a daily-brief pipeline without a babysitter. Try Make →
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Continue.dev shuts down July 15. Here is where to go.
JUNE 23RD · PONDERO GUIDE
Cursor acquired Continue on June 16, and users have until July 15 to export their data. Decision matrix: BYOK and local users go to Cline, JetBrains shops to Copilot or Cline, and anyone who wants the most capable AI editor goes to Cursor. Do not wait on the export.
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Cursor 2026 review, post-acquisition
JUNE 24TH · PONDERO REVIEW
The tab-prediction model is still the reason to pay, even after the SpaceX acquisition reshuffled the roadmap. Our verdict on who should switch and who can wait.
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Jonathan Hildebrandt
Co-founder and primary operator of Pondero. Writes the Pondero Brief.
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