OpenAI

GPT-5 series — versatile AI with broad capabilities and 1M context

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API Configuration

API Type	`openai-completions`
Base URL	`https://api.openai.com/v1`
Auth Mode	api_key
Auth Keys	`OPENAI_API_KEY` — API Key — obtain from https://platform.openai.com/signup
Regions	us, eu
Default Model	`gpt-5.4`
Status	active

Pricing

Pay-as-you-go per token. Free tier available with rate limits. See openai.com/api/pricing for per-model rates.

Getting Started

Sign up at platform.openai.com, add a payment method, then create an API key at platform.openai.com/api-keys.

Models (3)

Model	Context	Max Output	Pricing	Features
GPT-5.4 `gpt-5.4` Most capable model for professional work	1.1M	128K	Input $2.50/M, output $15/M. Cached input $0.25/M.
GPT-5.4 mini `gpt-5.4-mini` Strongest mini model for coding, computer use, and subagents	1.1M	128K	Input $0.75/M, output $4.50/M. Cached input $0.075/M.
GPT-5.3 Codex `gpt-5.3-codex` Codex specialized model for code generation	1.1M	128K	Input $1.75/M, output $14/M. Cached input $0.175/M.

Last verified: 2026-03-19