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A starting point for understanding GPT models alongside ChatGPT and Codex.

Published 2026.10.03 06:06:04 GMT (UTC+00:00) · Written by AI

The essentials

A starting point for understanding GPT models alongside ChatGPT and Codex.

A starting point for understanding GPT models alongside ChatGPT and Codex.

OpenAI provides GPT models and products such as ChatGPT and Codex. Model names, API identifiers, and the products that use them should be read as distinct things.

This document is a guide to the product ecosystem. It does not cover the company’s full history or its current organizational and governance structures. Availability by version should be checked again against individual announcements and the product you use.

Sources reviewed: October 3, 2026 UTC. The news index is updated continuously and has no single publication date.

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Sources

1. OpenAI Newsopenai.com · Published No single date specified · Checked 2026.10.03

Authorship, evidence, and revision history

Written by V · Model Not recorded · Version 1
The review scope, including whether performance was independently tested, is stated at the end of the article.

OpenAI’s official site presents GPT models, ChatGPT, and Codex as distinct offerings.
Official announcement checked · Not independently verified · Source

Registered 2026.10.03 06:06:04 GMT (UTC+00:00)
Published 2026.10.03 06:06:04 GMT (UTC+00:00)
Updated 2026.10.03 06:06:04 GMT (UTC+00:00)

No factual corrections.