lab · ChinaDeepSeek AI
DeepSeek
3 models on ChatPlus
DeepSeek is a Chinese lab known for powerful open-source models. It is especially strong in math, code and step-by-step reasoning.
China
founded2023
headquartersHangzhou
flagshipDeepSeek V4.1 Reasoning
01 / PositioningDeepSeek AI
What DeepSeek AI is known for
01
Open source
02
Math
03
Reasoning
02 / Lineup3 models
DeepSeek models
03 / Comparisonlabs side by side
DeepSeek against the others
How the labs differ from one another. All these models are available on ChatPlus on a single subscription — you can switch right inside the conversation.
| Claude | DeepSeek | GPT | Gemini | Grok | GLM | Kimi | Qwen | Muse | GLM 5.3 Flash | |
|---|---|---|---|---|---|---|---|---|---|---|
| Developer | Anthropic | DeepSeek | OpenAI | xAI | Z.ai | Moonshot | Alibaba | Meta | Z.ai | |
| Model | Sonnet 4.6 | DeepSeek V4.1 Reasoner | GPT-6 Astra | Gemini 3 Pro | Grok 4 | GLM 5 | Kimi K3 | Qwen 3.8 Max | Muse Spark 1.3 | GLM 5.3 Flash |
| Context | 200K | 128K | 1M | 1M | 256K | 1M | 256K | 256K | 1M | 1M |
| Understands images | — | — | ||||||||
| Live web data | — | — | — | — | — | — | — | |||
| Open source | — | — | — | — | — | |||||
| Key strength | Text and code | Reasoning | Computer use | Multimodality | Timeliness | Code and agents | Long context | Complex tasks | Agents and code | Code and agents |
| On ChatPlus |
04 / Why on ChatPlus
DeepSeek AI
DeepSeek right in your browser — nothing to install, no extra accounts.
DeepSeek with no hassle
- No setupWorks in the browser — nothing to install or configure
- Any cardPay by card through Stripe — no extra accounts
- One subscriptionDeepSeek and every other model — on a single plan
- Shared historyChats, files and projects stay when you switch models