OpenAI
OpenAI
Language model · United States ·Sep 2025

GPT‑5-Codex

Language Proprietary

About GPT‑5-Codex

GPT‑5-Codex is an AI model developed by OpenAI, in the language category, released in 2025, made available as a proprietary (API-only) model.

On this page you'll find GPT‑5-Codex's full specifications. Review provider pricing and benchmark scores below, or compare GPT‑5-Codex head-to-head with other language models.

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Frequently asked questions

What is GPT‑5-Codex? ▶

GPT‑5-Codex is an AI model developed by OpenAI, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created GPT‑5-Codex? ▶

GPT‑5-Codex was developed by OpenAI and released in 2025.

Is GPT‑5-Codex open source or proprietary? ▶

GPT‑5-Codex is a proprietary model. It is accessed through an API rather than by downloading the weights.

How much does GPT‑5-Codex cost? ▶

Pricing for GPT‑5-Codex depends on the provider. See the providers table on this page for the latest API rates.

How does GPT‑5-Codex perform on benchmarks? ▶

Benchmark scores for GPT‑5-Codex are listed on this page as they are published. You can compare it head-to-head with other models on the GenAIList compare tool.

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