DeepSeek vs Kai
DeepSeek and Kai are both AI assistants tools. DeepSeek is aimed at developers and small businesses, while Kai is aimed at freelancers and small businesses. Both have a free plan.
Free AI chat app and low-cost API built on open-weight models
AI executive assistant for email, meetings, calendar and tasks
| Pricing | Freemium | Paid · $20 |
| Starting price | Not published | $20/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Developers, Small businesses, Enterprise, Freelancers | Freelancers, Small businesses, Enterprise |
| Platforms | web, ios, android | web, macos, android |
| Country | CN · 2023 | CH |
| Rating | — | — |
Choose DeepSeek if
Developers and cost-conscious teams who want strong reasoning and coding models at very low API prices or as open weights.
- Consumer chat is completely free
- Among the cheapest frontier-class API token prices
- Open weights allow self-hosting and fine-tuning
Look elsewhere if: Organisations with strict data residency or public-sector rules (Mistral Le Chat, Claude, ChatGPT Enterprise).
Choose Kai if
Founders, executives and consultants who want one assistant across email, meetings, calendar and tasks with approval before every action.
- Never sends or deletes without your confirmation
- No meeting bot joins your calls
- Free trial with no card and no time limit
Look elsewhere if: People who only need a fast email client or a meeting notepad (Superhuman, Granola).
DeepSeek vs Kai pricing
DeepSeek
- Chat app$0Web, iOS and Android; no paid consumer tier
- deepseek-flash API$0.30/1M input tokensPeak cache-miss rate; output $1.20/1M; off-peak rates are half
- deepseek-v4-pro API$1.32/1M input tokensPeak cache-miss rate; output $3.96/1M; off-peak rates are half
- Search & Fetch API$0.75/1,000 requestsBilled per successful request
Kai
- Free trial$0One-time allowance, all features, no card, no time limit
- Base$20/moPer seat; base monthly allowance
- Pro$50/moPer seat; 5x Base allowance, includes Morgen Pro
- Ultra$100/moPer seat; 10x Base allowance, includes Morgen Pro
DeepSeek · Key features
- Free chat app with thinking and instant modes on web and mobile
- 1M-token context window on V4 models
- API compatible with OpenAI and Anthropic request formats
- Automatic context caching with much cheaper cache-hit pricing
- Off-peak API rates at half the peak price
- Tool calls, JSON output and FIM completion for coding tools
Cons
- Hosted service stores user data on servers in China
- Banned on government devices in several countries
- Answers on politically sensitive Chinese topics are censored
Kai · Key features
- Botless meeting capture with live transcripts
- Meeting summaries with owners, action items and drafted recap emails
- Email triage into needs reply, FYI and waiting for reply
- Reply drafts in your own writing style and follow-up nudges
- Unified Google and Outlook calendar timeline with a daily brief
- AI-ranked task list filled from meetings and email
Cons
- Usage allowances are not published in absolute terms
- Hitting the monthly allowance pauses work until you upgrade
- Full two-sided call capture needs the Mac app
DeepSeek vs Kai: FAQ
Do DeepSeek and Kai have a free plan?
Yes, both DeepSeek and Kai have a free plan; paid plans add more usage and features.