OpenAI API

Verified

Developer APIs for OpenAI models, tools, agents, realtime audio, images, and evaluation workflows.

4.7

PaidLLM Providers & APIs

Pricing

Paid

About OpenAI API

The OpenAI API gives developers access to frontier language, reasoning, coding, vision, image, audio, realtime, embeddings, moderation, and agent-building capabilities. It is the direct path for building production AI features on top of OpenAI models.

Key Features

GPT-4o, o1, o3 model family
Function calling and structured outputs
Vision, audio, and image generation APIs
Fine-tuning and embeddings
Batch API for cost savings

Pros & Cons

Pros

+ Largest model ecosystem and community

+ Excellent documentation and SDKs

+ Reliable uptime and fast inference

Cons

- Can get expensive at scale

- Rate limits on free tier

- Closed-source models

Use Cases

Building AI chatbots and assistantsDocument processing pipelinesCode generation toolsContent creation at scale

Compare OpenAI API

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