AI Model

GPT

byOpenAI

OpenAI's flagship large language model series.

Latest version:5.4Released

All Versions

GPT 5.4

Released
Released on March 6, 2026

GPT 5.3 Codex Spark

Released
Released on February 13, 2026

GPT 5.3 Codex

Released
Released on February 5, 2026

GPT 5.3

Rumored
Rumored to be released on February, 2026
Why it's rumored:References found in code / tooling and leaked "model IDs".
What to expect:Better cost/performance, context window leap (very large windows mentioned) and reliability improvements ("less hallucination").