Codex Configuration Tutorial
Codex Installation and Configuration Guide
Windows Version Guide
System Requirements
Installation Steps
Install Git Bash by visiting Git - Downloads, download the version matching your system, then keep clicking "Next" to finish installation.
Visit the Node.js official website to download and install the latest LTS version.
Open Command Prompt (CMD) or PowerShell and run:
Open Command Prompt (CMD) or PowerShell and run:
API Configuration
Go to aitokencore.com and perform the following steps:
Important Note: Replace sk-xxxbelow with your actual API key generated on aitokencore.com!
Important Note: Replacesk-xxxbelow with your actual API key generated on aitokencore.com!
Important Note: Replacesk-xxxbelow with your actual API key generated on aitokencore.com!
1.
.codex folder in your user directory, e.g.: C:\Users\testuser\.codex.(Note: If the directory is not visible, enable "Show hidden items" in File Explorer first.)
2.
.codex folder does not exist, create it manually, then create two files inside: config.toml and auth.json.3. Fill in configurations (replace
sk-xxx with your real API key).auth.json:{"OPENAI_API_KEY": "sk-xxx"}config.toml (paste directly):model_reasoning_effort accepts high, medium, low, representing the model's reasoning effort level.model_provider = "api111"
model = "gpt-5-codex"
model_reasoning_effort = "high"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.api111]
name = "api111"
base_url = "https://aitokencore.com/v1"
wire_api = "responses"Start codex
Then navigate to your project directory:
VSCode Extension: codex
codex in the VSCode Marketplace.Once installed, it will appear in the sidebar.
Mac Version Guide
System Requirements
Installation Steps
Open Terminal and run (sudo may be required):
Open Terminal and run:
API Configuration
Go to aitokencore.com and perform the following steps:
Important Note: Replace sk-xxxbelow with your actual API key generated on aitokencore.com!
Important Note: Replacesk-xxxbelow with your actual API key generated on aitokencore.com!
Important Note: Replacesk-xxxbelow with your actual API key generated on aitokencore.com!
1.
2.
auth.json:i to enter insert mode, paste the content below (replace sk-xxx with your key), then press ESC, type :wq and press Enter to save and exit.{"OPENAI_API_KEY": "sk-xxx"}3.
config.toml:i to enter insert mode, paste the content below, then press ESC, type :wq and press Enter to save and exit.model_provider = "api111"
model = "gpt-5-codex"
model_reasoning_effort = "high"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.api111]
name = "api111"
base_url = "https://aitokencore.com/v1"
wire_api = "responses"Start codex
Then navigate to your project directory:
VSCode Extension: codex
codex in the VSCode Marketplace.Linux Version Guide
System Requirements
Installation Steps
Open Terminal and run:
Open Terminal and run:
API Configuration
Go to aitokencore.com and perform the following steps:
Important Note: Replace sk-xxxbelow with your actual API key generated on aitokencore.com!
Important Note: Replacesk-xxxbelow with your actual API key generated on aitokencore.com!
Important Note: Replacesk-xxxbelow with your actual API key generated on aitokencore.com!
1.
2.
auth.json:i to enter insert mode, paste the content below (replace sk-xxx with your key), then press ESC, type :wq and press Enter to save and exit.{"OPENAI_API_KEY": "sk-xxx"}3.
config.toml:i to enter insert mode, paste the content below, then press ESC, type :wq and press Enter to save and exit.model_provider = "api111"
model = "gpt-5-codex"
model_reasoning_effort = "high"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.api111]
name = "api111"
base_url = "https://aitokencore.com/v1"
wire_api = "responses"Start codex
Then navigate to your project directory:
VSCode Extension: codex
codex in the VSCode Marketplace.Once installed, it will appear in the sidebar.
Common Issues
1.
Modified at 2026-04-01 11:07:47