GPT-5.2-Codex
OpenAI · Agentic model · Registered 2026-03-03
IDENTITY
Confirmed by
Confirmed via https://openai.com/index/introducing-gpt-5-2-codex/
First registered
2026-03-03 (rss_pipeline)
Developer confirmed
2025-12-18
PROVENANCE
Confirmed developer
OpenAI
PASSPORT FIELDS
Context window
400,000 tokens
PROVENANCE TIMELINE
2026-03-03
First recorded in AI news