New13 min read
Structured Outputs Across AI APIs: OpenAI, Claude, Gemini (2026)
97 of 167 models we track enforce a JSON schema on output. Request shapes, schema limits and refusal handling for OpenAI, Claude, Gemini and Mistral.
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237 articles
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MCP Client Features: Sampling, Elicitation and Roots Explained
MCP sampling, elicitation and roots explained against the 2026-07-28 spec, with JSON-RPC examples and which of 24 clients support each one.
•13 min read
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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.
New12 min read
ChatGPT MCP Events: Start Work Tasks From Gmail, Slack, GitHub
How to start ChatGPT Work tasks from Gmail, Slack, GitHub and your own MCP server events: setup steps, the 30-runs-per-hour cap and signed webhook code.
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New15 min read
Claude Agent SDK in Late 2026: What Is New and How to Use It
What changed in the Claude Agent SDK by October 2026: nested subagents with caps, SessionStore, skills, plugins, structured outputs and permission defaults.
New9 min read
Claude Code Now Reads AGENTS.md: Setup, Modes and Gotchas
Claude Code v2.1.277+ reads AGENTS.md when a repo has no CLAUDE.md. How the four Project instructions modes work, the settings key, and the gotchas.
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New13 min read
Claude Code Auto Mode Is Now the Default: Keep It, Tune It or Turn It Off
Claude Code starts in auto mode by default, with its safety classifier moving server-side. How to keep, tune or turn it off, and the v2.1.302 headless catch.
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New11 min read
Claude Fable 5.1 in Claude Code: How to Switch, Pin, and Pay Less
Claude Code v2.1.257 points /model fable at Fable 5.1: 1M context, $10/$50 per MTok, $0.25 cache reads. Setup, gotchas, and when Opus 5.5 wins.
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New14 min read
Claude Computer Use Toolset: GA API and SDK Driver Guide
Claude computer use is GA as computer_toolset_20260801: no beta header, batched actions, zoom on. How to call it, migrate, and write an SDK driver.
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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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New13 min read
Codex Code Review Plugin: How to Review Pull Requests in Codex
Codex's Code Review plugin opens GitHub PRs in the desktop and web app, runs a private Codex review, and lets you choose which findings to post.
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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.
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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