ChatGPT API vs Generative AI API
Two Artificial intelligence APIs with a free plan, compared field by field.
| ChatGPT API — GPT-4, o1 and o3 integration | Generative AI API — GPT-4o integration | |
|---|---|---|
| Endpoints | 1 | 1 |
| Latency | — | — |
| Service level | — | — |
| Free tier | $0.00 | $0.00 |
| Paid from | $9.99 | $9.99 |
| Updated | 2025-11-26 | 2025-11-26 |
ChatGPT API — GPT-4, o1 and o3 integration
One endpoint onto the OpenAI model family, including GPT-4 and the reasoning models, for chatbots, support automation and workflow tools.
It removes the SDK and key-management step for products that only need the call.
Generative AI API — GPT-4o integration
A REST interface onto GPT-4o for content generation, task automation and analysis, without the wiring an SDK integration needs.
It suits products adding a generative feature rather than building an AI platform.
Other comparisons in Artificial intelligence
ChatGPT API — GPT-4, o1 and o3 integration vs AI Social Media Content Generator
ChatGPT API — GPT-4, o1 and o3 integration vs AI Attractiveness Score, Gender & Age Detection
ChatGPT API — GPT-4, o1 and o3 integration vs Birth Chart, Character Analysis & Daily Horoscope
ChatGPT API — GPT-4, o1 and o3 integration vs AI Emotional Text Translator
ChatGPT API — GPT-4, o1 and o3 integration vs AI agent generator — build & deploy autonomous AI agents
ChatGPT API — GPT-4, o1 and o3 integration vs AI code generator — REST API & SQL generator
ChatGPT API — GPT-4, o1 and o3 integration vs AI prompt generator & optimisation API
ChatGPT API — GPT-4, o1 and o3 integration vs AI sentiment analysis & emotion detection
ChatGPT API — GPT-4, o1 and o3 integration vs Character AI — create custom characters & chat
ChatGPT API — GPT-4, o1 and o3 integration vs GPT-5 API — content generation & business automation
ChatGPT API — GPT-4, o1 and o3 integration vs Grok API — direct access