OpenAI API
Provider 
Founded 2015
Sells To Enterprises, Individuals
Pricing Model Subscription, Usage-based
Ownership Private, Public Benefit Corporation

OpenAI API lets developers build applications with OpenAI models, tools, and platform services.
OpenAI API is OpenAI's developer platform for building applications with its models and tools. It provides programmable access to language, reasoning, multimodal, and agentic capabilities for production software systems.
The service competes with other AI model APIs and managed developer platforms, including Anthropic API, Gemini API, and Amazon Bedrock.
| Attribute | OpenAI API | Anthropic API, Claude Models API | Embedding Model | Holo Models API | NIM | OpenRouter — Unified LLM API Gateway | |
|---|---|---|---|---|---|---|---|
| Provider | |||||||
| Founded | 2015 | 2021 | 2024 | 2023 | 1993 | 2023 | |
| Sells To | Enterprises, Individuals | Enterprises | Developers, Enterprise | Enterprise | Consumers, Enterprise | Developer | |
| Pricing Model | Subscription, Usage-based | Recurring, Usage-based | SaaS | SaaS | Licensing, Product Sales, Subscription | Usage-based | |
| Ownership | Private, Public Benefit Corporation | Venture Capital | Private | Privately Held | Public | Venture-backed private company |
Provider 
Founded 2015
Sells To Enterprises, Individuals
Pricing Model Subscription, Usage-based
Ownership Private, Public Benefit Corporation
Provider 
Founded 2021
Sells To Enterprises
Pricing Model Recurring, Usage-based
Ownership Venture Capital
Provider 
Founded 2024
Sells To Developers, Enterprise
Pricing Model SaaS
Ownership Private
Provider 
Founded 2023
Sells To Enterprise
Pricing Model SaaS
Ownership Privately Held
Provider NVIDIAnvidia.com24.1B raised · Public
Founded 1993
Sells To Consumers, Enterprise
Pricing Model Licensing, Product Sales, Subscription
Ownership Public

GLM Model API