DeepSeek vs OpenAI API
DeepSeek DeepSeek
A free chat assistant on DeepSeek’s open-weight models, known for strong reasoning.
VisitOpenAI API OpenAI
GPT models for text, vision, images, audio and realtime voice, plus the Agents SDK.
VisitSide by side
| Property | DeepSeek | OpenAI API |
|---|---|---|
| Type | Product | Product |
| Category | AI assistants | AI models and APIs |
| Made by | DeepSeek | OpenAI |
| Pricing | Free | Pay per use |
| Open source | Yes | No |
| API | Yes | Yes |
| Platforms | Web, Mobile, API | API |
| Startup | Yes | Yes |
Features
Only DeepSeek
- chat
- writing
- open weights
- coding
Both
- reasoning
Only OpenAI API
- llm api
- image generation
- voice
- embeddings
- agents