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OpenAI API
PAID · Pay-per-tokenOpenAI API gives developers access to GPT models for building AI applications with text generation, embeddings, and fine-tuning.
4.8(410 reviews) 0 views Updated 8/27/2026
Overview
The OpenAI API provides programmatic access to OpenAI's models including GPT-4o, GPT-4, and embeddings. Developers use it to build chatbots, content tools, and AI-powered products, with features like fine-tuning and function calling.
Key Features
REST API access to GPT-4o, GPT-4, GPT-3.5, and embedding modelsStreaming responses for real-time chat and completion experiencesFunction calling for connecting LLMs to external tools and APIsFine-tuning API for customizing models on your own datasetDALL-E and TTS endpoints for multimodal AI applications
Pros
Most capable and widely-supported LLM API on the marketStreaming API makes chat applications feel fast and responsiveFunction calling is a genuine breakthrough for agent workflows
Cons
Pricing per token adds up quickly for high-volume applicationsRate limits can interrupt production services during traffic spikes
Pricing
OpenAI API pricing starts at Pay-per-token. Enterprise pricing available.
Conclusion
OpenAI API is a good choice for Access to GPT models via API. Pricing is competitive.
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4.8
410 reviews