GPT-5.5

Coding Tools

GPT-5.5 Prompting Guide: How to Write Outcome-First Prompts for Agents, Tools, and Structured Outputs

A practical GPT-5.5 prompting guide for developers: outcome-first prompts, reasoning effort, tool workflows, structured outputs, prompt caching, and migration examples.
2026.04.30
Coding Tools
Coding Tools

Codex GPT-5.5 Guide: What Changed, Who Should Use It, and How to Get ROI

A practical guide to Codex GPT-5.5: what changed, when to use it, when not to, and how to structure coding-agent tasks so the higher cost turns into real engineering output.
2026.04.24
Coding Tools