gpt-5-codex

by OpenAI

GPT-5-Codex is a version of GPT-5 optimized for autonomous coding tasks in Codex or similar environments. It is only available in the Responses API, and the underlying model snapshots will be updated regularly. https://docs.aihubmix.com/en/api/Responses-API You can also use it in codex-cll; see https://docs.aihubmix.com/en/api/Codex-CLI for using codex-cll through Aihubmix.

API Pricing

Input$1.25 / 1M tokens
Output$10 / 1M tokens
Cache read$0.13 / 1M tokens

Specifications

Context window400,000 tokens
Modalitiestext, image
Featuresthinking, tool calling, function calling, structured outputs

FAQ

What is gpt-5-codex?

GPT-5-Codex is a version of GPT-5 optimized for autonomous coding tasks in Codex or similar environments. It is only available in the Responses API, and the underlying model snapshots will be updated regularly. https://docs.aihubmix.com/en/api/Responses-API You can also use it in codex-cll; see https://docs.aihubmix.com/en/api/Codex-CLI for using codex-cll through Aihubmix.

What is the context length of gpt-5-codex?

gpt-5-codex has a 400,000 token context window.

How much does gpt-5-codex cost?

On AIHubMix, gpt-5-codex costs $1.25 per million input tokens and $10 per million output tokens. Cached input reads are billed at $0.13 per million tokens.

What modalities does gpt-5-codex support?

gpt-5-codex accepts text and image input.

What features does gpt-5-codex support?

gpt-5-codex supports thinking, tool calling, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.

How do I call gpt-5-codex via API?

gpt-5-codex is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gpt-5-codex — no other code changes needed.

Who develops gpt-5-codex?

gpt-5-codex is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

More from OpenAI

gpt-5.6-luna

by OpenAI

GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly…

$0.2/1M in · $1.2/1M out
1,050,000 tokens context

gpt-5.6-sol

by OpenAI

GPT‑5.6 Sol sets a new standard for both intelligence and efficiency, achieving…

$5/1M in · $30/1M out
1,050,000 tokens context

gpt-5.6-terra

by OpenAI

GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly…

$2/1M in · $12/1M out
1,050,000 tokens context

gpt-4o-transcribe-diarize

by OpenAI

GPT-4o Transcribe Diarize is an automatic speech recognition (ASR) model with built-in…

$2.5/1M in · $10/1M out
16,000 tokens context

gpt-audio-1.5

by OpenAI

The gpt-audio model is OpenAI's first officially released (generally available) audio…

$2.5/1M in · $10/1M out
128,000 tokens context

gpt-image-2

by OpenAI

GPT-image-2 is OpenAI's latest cutting-edge image generation model. Key value adds…

$5/1M in · $30/1M out

Use gpt-5-codex via the AIHubMix unified API — one interface for every major LLM.