OpenAI API
API access to GPT-4, DALL-E, and Whisper models for building AI-powered features into products and workflows.
OpenAI's API provides access to state-of-the-art AI models including GPT-4 for text generation, DALL-E for image generation, and Whisper for speech-to-text. It's the foundation for thousands of AI-powered applications.
Key Features
GPT-4 and GPT-4o for advanced reasoning and conversation. Function calling for structured outputs. Fine-tuning capabilities. Assistants API for building AI agents. DALL-E 3 for image generation. Whisper for transcription. Embeddings for semantic search.
Best For
Companies building AI-powered features into their products. Teams automating content generation, customer support, or data analysis. Developers prototyping AI applications quickly.
Limitations
Costs can scale quickly with high usage. Rate limits on free tier. Model outputs require monitoring for quality and safety. Vendor lock-in concerns for production applications.
| Plan | Price | Details |
|---|---|---|
| GPT-4o | $2.50/1M input tokens | $10/1M output tokens |
| GPT-4o-mini | $0.15/1M input tokens | $0.60/1M output |
| GPT-4 Turbo | $10/1M input tokens | $30/1M output |
Used by
Stripe · Shopify · Salesforce · Morgan Stanley · Klarna · Duolingo · Khan Academy · Expedia
Use cases
- Building AI-powered chatbots and customer support
- Automating content generation for marketing
- Creating personalized product recommendations
- Analyzing and summarizing large documents
Alternatives
- Anthropic Claude — Constitutional AI assistant with strong reasoning, 200K context window, and focus on safety and helpfulness. (Pay-as-you-go)
- Jasper — AI content platform for marketing teams to generate on-brand copy, campaigns, and creative assets at scale. ($49/mo)