GPT-5.2-Codex

Assess

Tools

The prior Codex coding model with frontier coding performance.

Why it's here

Placed in Assess: 2 article(s) of evidence from 1 source(s), led by model releases, with 0 in the last 30 days. Confidence 30%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (2)

7OpenAI Blog·2/5/2026model_release
OpenAI Introduces GPT-5.3-Codex
OpenAI has announced GPT-5.3-Codex, a Codex-native agent designed to combine strong coding performance with broader reasoning abilities. The company says it is intended for long-horizon, real-world technical tasks.
7OpenAI Blog·2/5/2026model_release
GPT-5.3-Codex System Card
OpenAI says GPT-5.3-Codex is its most capable agentic coding model so far. It combines GPT-5.2-Codex's coding performance with GPT-5.2's reasoning and professional knowledge capabilities.