New17 min read
AI Model Shutdown Dates 2026-2027: Calendar and Migration Plan
Every scheduled AI model API shutdown through mid 2027 by month: GPT-4o on Jan 14, whisper-1 on Feb 26, Claude Sonnet 4.5 on Nov 30, plus how to migrate.
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118 articles
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AI API 429, 529 and 503 Errors: Retry Rules That Match the Docs
Which 429, 529 and 503 errors to retry across OpenAI, Claude, Gemini and Bedrock, how to read Retry-After, and a typed wrapper that skips quota errors.
•15 min read
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New12 min read
OpenAI Is Winding Down Fine-Tuning: Where to Move Your Fine-Tunes (October 2026)
OpenAI stops new fine-tuning jobs on January 6, 2027, and every base model it still lets you tune shuts down by January 14. The dates, what keeps serving, where fine-tuning still exists, which providers let you download weights, and a migration checklist.
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New8 min read
GPT-Live Decisions: Native Delegation and Transcript Triggers
GPT-Live can now call the Decisions API itself, mid-sentence. How native delegation and transcript triggers work, the session config, and the events to handle.
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New13 min read
Prompt Caching Across AI Providers: Prices, TTLs and Setup
Prompt caching across OpenAI, Anthropic, Gemini, DeepSeek, Mistral, xAI and Qwen: prices, TTLs, setup code. A reused 100K prefix costs 71-93% less.
New14 min read
ChatGPT Plugin Extensions: Sidebar Apps, Panels and File Editors
ChatGPT plugins can now add sidebar apps, side panels, file editors and native forms. How openai/ui entrypoints work, with type-checked code.
New7 min read
Codex CLI 0.163: Instant Steering Is Now the Default
Codex CLI 0.163.0 makes mid-response steering the default and adds searchable /config and a leader key. What changed and what to check before upgrading.
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New12 min read
Codex with GitLab: @codex Reviews and Tasks in Codex Cloud (Beta)
Codex cloud now reviews GitLab merge requests and runs @codex tasks in beta on all ChatGPT plans. Setup for GitLab.com and Self-Managed 19.0+.
New13 min read
How to Use Codex Cloud Reusable Environments (2026 Guide)
Codex Cloud reusable environments: publish once, then start isolated tasks from web, desktop or mobile. Setup, secrets, CLI, limits and 8-16 GiB VMs.
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New13 min read
Codex MCP Server Removed: How to Migrate to the App Server
codex mcp-server is gone as of Codex CLI 0.154.0. Here is how to move an integration to the experimental app server and its JSON-RPC protocol.
New15 min read
Context Engineering for Agents: Caching, Compaction, Subagents
Context engineering for agents, explained: caching, compaction, tool-result clearing, retrieval and subagents, with the exact Anthropic and OpenAI API knobs.
New12 min read
Custom GPTs Retire Dec 11, 2026: How to Migrate to Plugins
Custom GPTs retire Dec 11, 2026. Instructions and files migrate to a ChatGPT plugin automatically; custom actions do not. Here is the developer plan.
New10 min read
GPT Image 2.5 Sunburst and Flare: How to Use OpenAI's New Models
GPT Image 2.5 Sunburst and Flare add xhigh and max quality at GPT Image 2 token rates. Model IDs, type-checked code, costs and when to pick each.
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