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AI API/OpenAI

OpenAI API

Access 18 OpenAI modelsthrough YepAPI's unified API. One API key, OpenAI-compatible endpoint, pay-per-token pricing.

Get API Key — Free $5 Credit

No credit card required. Takes 30 seconds.

Text Generation

GPT-4o Mini

Text Generation

Access GPT-4o Mini through one API key. Fast, cheap, and OpenAI-compatible.

128K ctx$0.15/M in

GPT-4o

Text Generation

Access GPT-4o through one API key. Flagship reasoning and multimodal capabilities.

128K ctx$2.50/M in

GPT-5.4

Text Generation

Access GPT-5.4 through one API key. OpenAI's latest and most capable model.

1.1M ctx$2.50/M in

GPT-5.4 Mini

Text Generation

Access GPT-5.4 Mini through one API key. Smart and affordable with 400K context.

400K ctx$0.75/M in

GPT-5.4 Nano

Text Generation

Access GPT-5.4 Nano through one API key. Ultra-cheap for high-volume tasks.

400K ctx$0.20/M in

GPT-5.4 Pro

Text Generation

Access GPT-5.4 Pro through one API key. OpenAI's most powerful reasoning model.

1.1M ctx$30.00/M in

GPT-5.3 Chat

Text Generation

Access GPT-5.3 Chat through one API key. Reliable previous-generation OpenAI model.

128K ctx$1.75/M in

GPT-5.3 Codex

Text Generation

Access GPT-5.3 Codex through one API key. Previous-gen coding model with massive output.

400K ctx$1.75/M in

GPT-5.2 Pro

Text Generation

Access GPT-5.2 Pro through one API key. Previous-gen premium reasoning model.

400K ctx$21.00/M in

GPT-5.2

Text Generation

Access GPT-5.2 through one API key. Previous-generation flagship model.

400K ctx$1.75/M in

GPT-5.2 Chat

Text Generation

Access GPT-5.2 Chat through one API key. Reliable chat model.

128K ctx$1.75/M in

GPT-5.2 Codex

Text Generation

Access GPT-5.2 Codex through one API key. Reliable coding model with massive context.

400K ctx$1.75/M in

GPT-5.1 Codex Max

Text Generation

Access GPT-5.1 Codex Max through one API key. Max-output coding model.

400K ctx$1.25/M in

GPT Audio

Text Generation

Access GPT Audio through one API key. Audio-capable multimodal model.

128K ctx$2.50/M in

GPT Audio Mini

Text Generation

Access GPT Audio Mini through one API key. Affordable audio-capable model.

128K ctx$0.60/M in

GPT-OSS 120B

Text Generation

Access GPT-OSS 120B through one API key. OpenAI's open-source model.

131K ctx$0.04/M in

Video Generation

Sora 2

Video Generation

AI video generation API powered by OpenAI's Sora 2. Generate videos with synced audio from text or images.

Sora 2 Pro

Video Generation

Premium AI video generation powered by OpenAI's Sora 2 Pro. Production-quality videos up to 1080p with synced audio.

Start using OpenAI models in 30 seconds

$5 free credit on signup. No credit card required.

OpenAI API through YepAPI

YepAPI provides access to OpenAI models through a unified API endpoint. Instead of managing a separate OpenAI API key and billing account, use your single YepAPI key to call any OpenAI model alongside 60+ other AI models from OpenAI, Anthropic, Google, Meta, and more.

All OpenAI models use the same OpenAI-compatible request format. Switch between models by changing the model parameter — no SDK changes, no code rewrites. Pay per token with no monthly minimums.

Ready to use OpenAI models?

18 OpenAI models included with one API key. $5 free credit on signup. No credit card required.

Get API Key — Free $5 Credit