GPT-5.5

9 min read

GPT-5.5-Codex merges Codex and GPT-5 stacks. Here is what the unified model means for real coding agents - latency, costs, prompt rewrites.

11 min read

GPT-5.5 and 5.5 Pro hit the API on April 24. Here is what changes for builders: pricing, agentic tasks, tool-use, and the real benchmarks I ran the day it dropped.

10 min read

Opus 4.7 vs GPT-5.5, the new Codex CLI vs the Claude skills ecosystem. An opinionated April 2026 verdict on which terminal agent to reach for, by job.