ChatGPT
The most widely used consumer AI assistant, spanning writing, analysis, images and voice.
Full ChatGPT record →Head to head
ChatGPT vs DeepSeek
ChatGPT (OpenAI) and DeepSeek (DeepSeek) both sit in Writing. DeepSeek is the cheaper entry point at Pay-as-you-go API pricing (not fully detailed in text). Free tier or flat-rate seats not specified.. DeepSeek shipped more tracked changes in the last 30 days (11 vs 4). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | ChatGPT OpenAI | DeepSeek DeepSeek |
|---|---|---|
| Segment | Writing | Writing |
| Version | GPT-6 | DeepSeek-V4.1-Flash-1017 |
| Entry cost | Free tier · from $20/mo | Pay-as-you-go API pricing (not fully detailed in text). Free tier or flat-rate seats not specified. |
| Pricing tiers | ChatGPT Free free · ChatGPT Plus $20 | Pay-as-you-go API free |
| Model stack | Astra · Codex · GPT Image · GPT-4 · GPT-4o · GPT-4o mini · GPT-5.2 · GPT-5.2 Thinking · GPT-5.4 · gpt-5.6 · GPT-6 · gpt-6-astra · GPT-Live-1 · o1 · o3-mini | deepseek-flash · DeepSeek-R1 · DeepSeek-V3.2 · deepseek-v4-flash · DeepSeek-V4-Flash-0731 · DeepSeek-V4-Flash-Vision-Exp · DeepSeek-V4-Pro · DeepSeek-V4-Pro-0813 · DeepSeek-V4.1-Flash · DeepSeek-V4.1-Flash-1017 |
| Context window | 196K tokens on Plus | 1000000 |
| Public API | ||
| Routes models | ||
| Changes / 30d | 4 | 11 |
| Origin | Global | China |
| Capabilities | Voice mode, Deep research, Canvas, Agent mode, Projects, Connectors, Realtime API, Voice agents | Reasoning mode, Open weights (MIT), OpenAI-compatible API, Context caching, Function calling, Thinking Mode, Context Caching, JSON Output |
DeepSeek
Hangzhou lab whose V and R series models are released under permissive licences and undercut Western API pricing by an order of magnitude.
Full DeepSeek record →