OpenAI
GPT-5-Codex Pricing
API pricing for GPT-5-Codex by OpenAI. Input tokens cost $1.25/1M, output tokens cost $10/1M with 400K context window.
Last updated:
ReasoningTools
Input Cost
$1.25
per 1M tokens
Output Cost
$10
per 1M tokens
Context Window
400K
tokens
Cost Calculator
Estimated Cost:
$0.00
Model Details
Provider
OpenAI
Model ID
gpt-5-codex
Context Window
400K tokens
Max Output
128000 tokens
Cache Read Cost
$0.125/1M
Release Date
2025-09-15
Compare Alternatives
| Model | Input | Output | Context |
|---|---|---|---|
| GPT-5-Codex (this model) | $1.25 | $10 | 400K |
| Gemini 2.5 Pro Google | $1.25 | $10 | 1M |
| Gemini 2.5 Pro Preview 05-06 Google | $1.25 | $10 | 1M |
| Gemini 2.5 Pro Preview 06-05 Google | $1.25 | $10 | 1M |
| GPT-5 OpenAI | $1.25 | $10 | 400K |
| GPT-5 Chat (latest) OpenAI | $1.25 | $10 | 400K |
Available from Resellers
GPT-5-Codex is also available through these resellers and gateways:
| Reseller | Model | Input | Output |
|---|---|---|---|
| AIHubMix | GPT-5-Codex | $1.25 | $10 |
| AIHubMix | GPT-5.1 Codex | $1.25 | $10 |
| AIHubMix | GPT-5.1 Codex Mini | $0.25 | $2 |
| AIHubMix | GPT-5.1-Codex-Max | $1.25 | $10 |
| Azure | GPT-5-Codex | $1.25 | $10 |
| Azure | GPT-5.1 Codex | $1.25 | $10 |
| Azure | GPT-5.1 Codex Max | $1.25 | $10 |
| Azure | GPT-5.1 Codex Mini | $0.25 | $2 |
| Azure Cognitive Services | GPT-5-Codex | $1.25 | $10 |
| Azure Cognitive Services | GPT-5.1 Codex | $1.25 | $10 |