OpenAI API
Access 37 OpenAI modelsthrough YepAPI's unified API. One API key, OpenAI-compatible endpoint, pay-per-token pricing.
No credit card required. Takes 30 seconds.
Text Generation
GPT-4o Mini
Text GenerationAccess GPT-4o Mini through one API key. Fast, cheap, and OpenAI-compatible.
GPT-4o
Text GenerationAccess GPT-4o through one API key. Flagship reasoning and multimodal capabilities.
GPT-6 Astra
Text GenerationAccess GPT-6 Astra through one API key. OpenAI's GPT-6 flagship for analysis, engineering and research.
GPT-5.5
Text GenerationAccess GPT-5.5 through one API key. OpenAI's newest and most capable model.
GPT-5.5 Pro
Text GenerationAccess GPT-5.5 Pro through one API key. OpenAI's most powerful reasoning model.
GPT-5.4
Text GenerationAccess GPT-5.4 through one API key. OpenAI's latest and most capable model.
GPT-5.4 Mini
Text GenerationAccess GPT-5.4 Mini through one API key. Smart and affordable with 400K context.
GPT-5.4 Nano
Text GenerationAccess GPT-5.4 Nano through one API key. Ultra-cheap for high-volume tasks.
GPT-5.4 Pro
Text GenerationAccess GPT-5.4 Pro through one API key. OpenAI's most powerful reasoning model.
GPT-5.3 Codex
Text GenerationAccess GPT-5.3 Codex through one API key. Previous-gen coding model with massive output.
GPT-5.2 Pro
Text GenerationAccess GPT-5.2 Pro through one API key. Previous-gen premium reasoning model.
GPT-5.2
Text GenerationAccess GPT-5.2 through one API key. Previous-generation flagship model.
GPT-5.2 Chat
Text GenerationAccess GPT-5.2 Chat through one API key. Reliable chat model.
GPT-5.2 Codex
Text GenerationAccess GPT-5.2 Codex through one API key. Reliable coding model with massive context.
GPT-5.1 Codex Max
Text GenerationAccess GPT-5.1 Codex Max through one API key. Max-output coding model.
GPT Audio
Text GenerationAccess GPT Audio through one API key. Audio-capable multimodal model.
GPT Audio Mini
Text GenerationAccess GPT Audio Mini through one API key. Affordable audio-capable model.
GPT-6 Sol
Text GenerationAccess GPT-6 Sol through one API key. OpenAI GPT-6 Cost-Efficient High-End.
GPT-6 Luna
Text GenerationAccess GPT-6 Luna through one API key. OpenAI GPT-6 Fast & Low-Cost.
GPT-6 Astra Pro
Text GenerationAccess GPT-6 Astra Pro through one API key. OpenAI GPT-6 Astra Pro Reasoning Mode.
GPT-6 Sol Pro
Text GenerationAccess GPT-6 Sol Pro through one API key. OpenAI GPT-6 Sol Pro Reasoning Mode.
GPT-6 Luna Pro
Text GenerationAccess GPT-6 Luna Pro through one API key. OpenAI GPT-6 Luna Pro Reasoning Mode.
GPT-5.6 Luna
Text GenerationAccess GPT-5.6 Luna through one API key. OpenAI GPT-5.6 Fast & Low-Cost.
GPT-5.6 Luna Pro
Text GenerationAccess GPT-5.6 Luna Pro through one API key. OpenAI GPT-5.6 Luna Pro Reasoning Mode.
GPT-5.6 Sol
Text GenerationAccess GPT-5.6 Sol through one API key. OpenAI GPT-5.6 Flagship for Coding & Agents.
GPT-5.6 Sol Pro
Text GenerationAccess GPT-5.6 Sol Pro through one API key. OpenAI GPT-5.6 Sol Pro Reasoning Mode.
GPT-5.6 Terra
Text GenerationAccess GPT-5.6 Terra through one API key. OpenAI GPT-5.6 Balanced Tier.
GPT-5.6 Terra Pro
Text GenerationAccess GPT-5.6 Terra Pro through one API key. OpenAI GPT-5.6 Terra Pro Reasoning Mode.
GPT-OSS 120B
Text GenerationAccess GPT-OSS 120B through one API key. OpenAI's open-source model.
Image Generation
GPT Image 2
Image GenerationOpenAI's GPT Image 2 from $0.07 per image — best-in-class prompt following and in-image text, via one REST call.
GPT Image 1
Image GenerationGPT Image 1 from $0.09 per image — OpenAI's proven image generator on the unified media endpoint.
GPT Image 1 Mini
Image GenerationGPT Image 1 Mini from $0.02 per image — the budget OpenAI image tier for drafts and volume.
GPT-5.4 Image 2
Image GenerationGPT-5.4 Image 2 from $0.07 per image — reasoning-led image generation on the unified media endpoint.
GPT-5 Image
Image GenerationGPT-5 Image from $0.09 per image — detailed, prompt-faithful generation through one API key.
GPT-5 Image Mini
Image GenerationGPT-5 Image Mini from $0.02 per image — the fast, cheap tier for drafts and volume.
Video Generation
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?
37 OpenAI models included with one API key. $5 free credit on signup. No credit card required.