ChatGPT vs DeepSeek
Two agents AI tools compared on the facts: what each one does, how it charges, and where their capabilities overlap. We track tools, we don't rate them, so there is no winner declared here. The differences below should make the right pick for your use case obvious.
ChatGPT
Conversational AI model for text generation and interaction
ChatGPT is an AI chatbot developed by OpenAI. It generates human-like text responses based on user prompts. The tool is accessible via its web interface and offers a mobile app for iOS and Android.
DeepSeek
AI chat platform and developer API powered by reasoning models
DeepSeek provides access to large language models including DeepSeek-V4 preview, DeepSeek-V3, and DeepSeek-R1. Users can interact with the service through web browsers, mobile apps, or a dedicated developer API. The platform supports reasoning and agent capabilities for various computational tasks.
At a glance
Swipe the table sideways to see both tools.
| ChatGPT | DeepSeek | |
|---|---|---|
| Price | Free plan, then $8/mo Free Free · Go $8/mo · Plus $20/mo · Pro $100/mo | Free plan available no tiers confirmed yet |
| Pricing model | freemium | freemium |
| Website | chatgpt.com ↗ | deepseek.com ↗ |
| Shared capabilities | ai-chat research | |
| Only here | generative-writing summarization writing-assistant | ai-agents developer-api |
Capability tags are factual labels we assign when a tool is added; they describe what a tool does, not how well it does it.
Checked against the vendors. Written from each vendor's own site and last re-checked there: ChatGPT (not re-checked yet) · DeepSeek on July 27, 2026. Vendors change pricing and features without notice, so confirm anything that decides your purchase on the vendor's page.
Key features
ChatGPT
- Generates text responses to prompts
- Supports conversational dialogue
- Processes and synthesizes information
- Offers a web interface and mobile applications
- Integrates with third-party tools via plugins
DeepSeek
- Free web and mobile chat interface
- Developer API platform for model integration
- Reasoning and agent capability support
- Access to research models including DeepSeek-R1 and DeepSeek-V3
What each one does well
ChatGPT
- ✓ Generating creative content and drafts
- ✓ Answering factual questions and explaining concepts
- ✓ Summarizing long documents or conversations
DeepSeek
- ✓ Interacting with AI chat models via web or app
- ✓ Integrating DeepSeek reasoning models via API
- ✓ Accessing AI research models such as DeepSeek-R1 and DeepSeek-V3
Full fact sheets, FAQs, and discussion links: ChatGPT · DeepSeek · all agents tools