ChatGPT vs DeepSeek
A side-by-side comparison of ChatGPT and DeepSeek, two Assistant tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | ChatGPT | DeepSeek |
|---|---|---|
| Category | Assistant | Assistant |
| Pricing | FREEMIUM | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms (differs) | Web, iOS, Android, macOS, Windows | Web, iOS, Android |
| Model support | Single model (proprietary) | Single model (proprietary) |
| Vendor (differs) | OpenAI | DeepSeek |
| Capabilities (differs) |
|
|
The honest brief
ChatGPT
The app that mainstreamed generative AI — its custom-GPT store turned a chatbot into a third-party app platform.
- Largest user base and ecosystem
- Custom GPT store and tooling
- Strong multimodal: voice, vision, web
- Frequent frontier-model updates
- OpenAI models only
- Best features gated to paid tiers
- Usage limits on advanced models
DeepSeek
Open-weight R1 reset the price-for-reasoning curve, and the consumer app stays free with strong reasoning.
- Reasoning mode (R1)
- Self-hostable open weights
- Web search built in
- Mobile and web apps
- China-hosted data concerns
- Content restrictions on sensitive topics
- Smaller app polish than rivals
When to pick which
Across the signals we compare, ChatGPT and DeepSeek differ on platforms:
- Platforms
- Web, iOS, Android, macOS, Windows · Web, iOS, Android
Their capability lists differ in recorded depth — compare the full lists above before deciding.