API access to GPT-4, DALL-E, Whisper, and other OpenAI models for developers.
OpenAI API is a ai & machine learning platform founded in 2015 with a hiltonsoftware Score of 79/100. OpenAI API pricing starts at Pay per use/month with no free plan. OpenAI API serves 3M+ users and competes with ChatGPT, Claude, and GitHub Copilot in the ai & machine learning market. Key OpenAI API features include GPT-4 API, Embeddings, and Fine-tuning. hiltonsoftware.co rates OpenAI API 4.7/5 based on user ratings (40%), feature depth (25%), value for money (20%), market presence (10%), and growth trajectory (5%).
Developers building AI-powered products and automations.
Reviewed by Sarah Mitchell, Cloud & Developer Tools Editor. Last updated: March 2026. Pricing verified. Methodology