OpenAI’s pricing is dynamic and may change at any time. For the most current rates, please visit openai.com/pricing.
| Model Category | Billing Unit | Basis |
|---|---|---|
| Text | 1,000 tokens | ~750 words per 1,000 tokens |
| Image | Per generated image | Cost varies by image resolution |
| Audio (Whisper) | Per second of audio | Charged by duration (transcription/translation) |
A token corresponds to roughly 0.75 English words. Tools like tiktoken help estimate token counts before you send requests.
Text-Based Use Cases
Text models support a variety of tasks, each billed per 1,000 tokens:| Use Case | Description |
|---|---|
| Word/Code Completion | Predictive text or code generation |
| Chat | Conversational AI interactions |
| Embeddings | Semantic vector generation |
| Fine-Tuning | Custom model training |

Always check the official pricing page before planning your integration or budgeting for production workloads.
We’ll now take a closer look at ChatGPT—how it works and how to integrate it into your applications.