ChatGPT vs DeepSeek
ChatGPT uniquely has 22 features · DeepSeek uniquely has 13 features.
| ChatGPT | DeepSeek | |
|---|---|---|
| Company | ||
| Founded | 2022 | 2023 |
| HQ | San Francisco, USA | Hangzhou, China |
| AI model | GPT-5.5 Instant (default), GPT-5.6 (Plus and above) | DeepSeek-V4-Pro-0813 (flagship), DeepSeek-V4-Flash-0731, DeepSeek-V4-Flash-Vision-Exp (experimental multimodal) |
| User base | 900M+ weekly active users (February 2026) | 100M+ (reported across web and app) |
| Platforms | Desktop, Web, Mobile | API (OpenAI Format, Anthropic Format) |
| Languages | 50+ | Multiple (interface available in Chinese and English at minimum) |
| Pricing | ||
| Pricing model | Freemium | Freemium |
| Free plan | Yes | Yes — free access to DeepSeek chat via web and mobile app |
| Free trial | No | No — free tier is permanent |
| Starting price | $8/mo | Free — DeepSeek Chat |
| Enterprise | $20/user/mo annually or $25/user/mo monthly (ChatGPT Business, 2-user minimum) | — |
| Refund policy | Cancellations take effect at end of billing period; refund eligibility depends on purchase channel, timing, and regional law | — |
| All plans | Go8/moPlus20/moPro100/moBusiness20/user/moEnterpriseustom | deepseek-v4-flash (Off-Peakache Hit), $0.007 / 1M input tokens usagedeepseek-v4-flash (Peakache Hit), $0.014 / 1M input tokens usagedeepseek-v4-flash (Off-Peakache Miss), $0.22 / 1M input tokens usagedeepseek-v4-flash (Peakache Miss), $0.44 / 1M input tokens usagedeepseek-v4-flash (Off-Peakutput), $0.66 / 1M output tokens usagedeepseek-v4-flash (Peakutput), $1.32 / 1M output tokens usagedeepseek-v4-pro (Off-Peakache Hit), $0.022 / 1M input tokens usagedeepseek-v4-pro (Peakache Hit), $0.044 / 1M input tokens usagedeepseek-v4-pro (Off-Peakache Miss), $0.66 / 1M input tokens usagedeepseek-v4-pro (Peakache Miss), $1.32 / 1M input tokens usagedeepseek-v4-pro (Off-Peakutput), $1.98 / 1M output tokens usagedeepseek-v4-pro (Peakutput), $3.96 / 1M output tokens usagedeepseek-v4-flash-vision-exp (Off-Peakache Hit), $0.007 / 1M input tokens usagedeepseek-v4-flash-vision-exp (Peakache Hit), $0.014 / 1M input tokens usagedeepseek-v4-flash-vision-exp (Off-Peakache Miss), $0.22 / 1M input tokens usagedeepseek-v4-flash-vision-exp (Peakache Miss), $0.44 / 1M input tokens usagedeepseek-v4-flash-vision-exp (Off-Peakutput), $0.66 / 1M output tokens usagedeepseek-v4-flash-vision-exp (Peakutput), $1.32 / 1M output tokens usage |
| Positioning | ||
| Best for | Trying ChatGPT (Free), longer conversations (Go), advanced work and productivity (Plus), research and coding (Pro) | API-based AI integration requiring high context length, thinking/non-thinking modes, and competitive pricing |
| Differentiator | Tiered access to GPT-5.5 and GPT-5.6 models with advanced reasoning on higher plans; native image generation and data analysis | 1M context window, supports both thinking and non-thinking modes, Anthropic-compatible API format, multimodal experimental model |
| Competitors | Google Gemini, Microsoft Copilot, Claude (Anthropic), Perplexity AI, Meta AI | ChatGPT, Claude, Gemini, Grok, Llama |
| Features | ||
| Anthropic API | , | ✓ |
| Chat Prefix Completion (Beta) | , | ✓ |
| Codex Access | ✓ | , |
| Custom Gpts | ✓ | , |
| Deep Research | ✓ | , |
| Fim Completion (Beta) | , | ✓ |
| Image Generation | ✓ | , |
| Json Output | , | ✓ |
| Memory & Context | ✓ | , |
| Memory and Context | ✓ | , |
| Responses API | , | ✓ |
| Scheduled Tasks | ✓ | , |
| Tool Calls | , | ✓ |
| AI Assistant | ✓ | , |
| AI Summarization | , | ✓ |
| API Access | , | ✓ |
| Browser Extension | ✓ | ✕ |
| Calendar Integration | ✕ | , |
| Data Privacy | , | ✓ |
| Document Creation | ✓ | , |
| Document Upload | , | ✓ |
| Email Management | ✓ | , |
| Follow Up Questions | , | ✓ |
| Meeting Summary | ✓ | , |
| Mobile App | ✓ | ✓ |
| Multi Source Synthesis | , | ✓ |
| Note Taking | ✓ | , |
| Offline Mode | ✕ | , |
| Presentation Builder | ✓ | , |
| Project Management | ✕ | , |
| Research Assistant | ✓ | , |
| Spreadsheet AI | ✓ | , |
| Task Automation | ✓ | , |
| Team Collaboration | ✓ | , |
| Web Search | , | ✓ |
| Integrations | ||
| API Access | ✓ | ✓ |
| Browser Extension | ✓ | ✕ |
| Google Calendar | ✕ | , |
| Google Docs Export | , | ✕ |
| Google Drive | ✓ | , |
| Key Integrations | OpenAI API, Zapier, DALL·E 3, Bing Search, Wolfram Alpha, code interpreter, custom GPT plugins/Actions, Slack (via third-party) | Responses API, Codex integration, DeepSeek Harness, REST API |
| Microsoft 365 | ✕ | , |
| Notion Integration | , | ✕ |
| Slack Integration | ✓ | , |
| Zapier | ✓ | , |
| Zotero Integration | , | ✕ |