DeepSeek
A free chat assistant from Chinese lab DeepSeek with strong reasoning models, on web, iPhone and Android. By DeepSeek.
Price
Not public
Free plan.
Works on
Web · iPhone · Android72+ languages
AI League
83 pts · #3 in writing & chat
See the writing & chat standingsFree plan and price
Free plan. The chat app and website are free; there is no paid consumer plan.
No paid consumer plan: the app is free (the API is billed separately).
Good for / not for
- Free reasoning, maths and coding help
- Confidential or regulated data
Pros and cons
- Free with no paid tier
- Near the top of the LMArena text leaderboard
- 72 app languages
- Data is stored in China; some organisations block it
- No image generation or voice mode
Alternatives
How DeepSeek scores
| Score | 0–10 | Basis |
|---|---|---|
| Quality | 8.3 | Elo 1477 (DeepSeek V4.1 Flash (max)). LMArena Text leaderboard, blind-vote score (checked Sep 2026). |
| Ease | 10.0 | Checklist: Web · iPhone · Android; plain-language prompt yes; start without paying yes. |
| Free plan | 9.0 | The chat app and website are free; there is no paid consumer plan. |
| Value | 5.0 | No paid plan to compare; rubric default used. |
| Languages | 10.0 | The iPhone app lists 72 languages (App Store). |
| Points | 83 | (Quality×30% + Ease×20% + Free plan×15% + Value×20% + Languages×15%) × 10 |
Sources
Checked Sep 28, 2026. Prices and plans change often; check the official site before you buy.
- Free plan: apps.apple.com/us/app/deepseek-ai-assistant/id6737597349 · chat.deepseek.com
- Price: apps.apple.com/us/app/deepseek-ai-assistant/id6737597349
- Platforms: apps.apple.com/us/app/deepseek-ai-assistant/id6737597349 · play.google.com/store/apps/details?id=com.deepseek.chat&hl=en
- Languages: apps.apple.com/us/app/deepseek-ai-assistant/id6737597349
- Quality score: arena.ai/leaderboard/text
- Ease score: apps.apple.com/us/app/deepseek-ai-assistant/id6737597349
- Value score: apps.apple.com/us/app/deepseek-ai-assistant/id6737597349