# ChatGPT vs DeepSeek

> ChatGPT: OpenAI's AI assistant for writing, research, coding, image generation and voice chat
> DeepSeek: Free AI chat app and low-cost API running DeepSeek's open-weights V4 models

- ChatGPT profile: https://finderatlas.com/tools/chatgpt
- DeepSeek profile: https://finderatlas.com/tools/deepseek
- Comparison page: https://finderatlas.com/compare/chatgpt-vs-deepseek
- Last reviewed: October 2026

## Verdict

ChatGPT and DeepSeek are both AI Assistants tools. Both have a free plan or trial. Only DeepSeek offers an API.

### Choose ChatGPT if

- You want a tool built for everyday questions, drafting and editing text, summarizing documents, coding help, data analysis and image generation in one assistant.
- One assistant covers text, voice, images, file analysis, search and coding.
- Free tier lets users try the service without a card.

### Choose DeepSeek if

- You want a tool built for Low-cost API integration.
- Web chat and mobile apps are free.
- API output costs from $0.60 per 1M tokens (Flash, off-peak), well below most frontier providers.

## Pricing

| | ChatGPT | DeepSeek |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | ChatGPT | DeepSeek |
| --- | --- | --- |
| Chat with web search | Yes | Not listed |
| Voice mode | Yes | Not listed |
| Image generation | Yes | Limited |
| File and image analysis | Yes | Not listed |
| Projects | Yes | Not listed |
| ChatGPT agent | Yes | Not listed |
| Codex | Yes | Not listed |
| Connectors and apps | Yes | Not listed |
| V4 model family | Not listed | Yes |
| Thinking mode | Not listed | Yes |
| Open weights | Not listed | Yes |
| OpenAI and Anthropic compatible API | Not listed | Yes |
| Tool calls and JSON output | Not listed | Yes |
| Search and Fetch APIs | Not listed | Yes |
| Agent tool integrations | Not listed | Yes |
| DeepSeek Harness | Not listed | Yes |
| Vision on Flash | Not listed | Yes |

## Platforms

| Platform | ChatGPT | DeepSeek |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | No | Yes |
| Browser Extension | No | No |

## ChatGPT strengths

- One assistant covers text, voice, images, file analysis, search and coding
- Free tier lets users try the service without a card
- Apps for web, iOS, Android, macOS and Windows with synced history
- Large ecosystem of connectors, projects and agent features
- Plans range from $8 to $500 per month, so users can match spend to usage

## ChatGPT limitations

- Free and Go usage limits are low and may include ads
- Pricing and model lineup change often, which makes limits hard to compare over time
- Answers can be wrong and need checking, especially for facts and citations
- The top Pro tiers cost $100 to $500 per month

## DeepSeek strengths

- Web chat and mobile apps are free
- API output costs from $0.60 per 1M tokens (Flash, off-peak), well below most frontier providers
- Open weights for V4 and earlier models on Hugging Face
- 1M-token context and 384K max output on both API models
- API works with both OpenAI and Anthropic SDKs and several coding agents

## DeepSeek limitations

- Peak-hour API rates are double the off-peak rates on weekday mornings UTC
- deepseek-v4-pro does not support vision input
- No image generation
- Data is processed by a company based in China, which some organizations cannot accept

## FAQ

**Is ChatGPT better than DeepSeek?**

It depends on your workflow. ChatGPT is built for everyday questions, drafting and editing text, summarizing documents, coding help, data analysis and image generation in one assistant. DeepSeek is built for Low-cost API integration.

**What are the key feature differences between ChatGPT and DeepSeek?**

ChatGPT: OpenAI's AI assistant for writing, research, coding, image generation and voice chat. DeepSeek: Free AI chat app and low-cost API running DeepSeek's open-weights V4 models. ChatGPT is rated 4.0/5 from 1 user review.

**Does ChatGPT or DeepSeek have a free plan?**

Yes, both do. ChatGPT is freemium and DeepSeek is freemium, and each has a free plan or trial.

**Which is cheaper, ChatGPT or DeepSeek?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.