Coreply supports OpenAI’s API directly. You can use GPT-4.1 and GPT-4o model variants for fast, reliable suggestions.
OpenAI’s free tier is very restrictive. You’ll likely need to add credits to your account before Coreply can make API calls successfully. Note that a ChatGPT subscription does not include API credits — these are separate and must be purchased at platform.openai.com. Setup
Enter your credentials in Coreply
Open Coreply’s settings and fill in the following values:| Field | Value |
|---|
| API URL | https://api.openai.com/v1/ |
| API Key | Your secret key from OpenAI |
| Model Name | See recommended models below |
Choose a model
The following models are recommended for use with Coreply:gpt-4.1-mini
gpt-4.1-nano
gpt-4.1
gpt-4o-mini
gpt-4o
Model notes
gpt-4.1-mini offers the best cost-to-performance ratio for Coreply. The mini and nano variants are faster and cheaper while still producing high-quality suggestions.
The gpt-5 family are reasoning models. They work with Coreply but add significant latency before each suggestion, making them a poor fit for real-time texting assistance.
