
DeepSeek

Side-by-side comparison based on pricing, features, and community data.
DeepSeek and Heptabase are both AI research tools. DeepSeek is Freemium; Heptabase is Paid. DeepSeek and Heptabase solve entirely different problems.
DeepSeek and Heptabase solve entirely different problems. DeepSeek is a reasoning-focused language model for chat, coding, math, and agent tasks—pick it for AI inference workloads. Heptabase is a visual knowledge management system for organizing research and learning—pick it for note-taking and idea mapping. DeepSeek excels at technical reasoning (96.3 percentile on Codeforces, 79.8% on AIME 2024) and offers a free tier via web/mobile/API. Heptabase trades free access for a paid subscription model but provides spatial, visual note organization with strong PDF and video annotation. Choose DeepSeek if you need intelligent task automation; choose Heptabase if you need to externalize and structure complex thinking visually.
Pick DeepSeek if you need an AI assistant for reasoning-heavy tasks like coding, math, complex problem-solving, or building AI agents.
Pick Heptabase if you're a researcher or student who wants to visually organize notes, annotate PDFs, and map ideas spatially across whiteboards.
| Feature | DeepSeek | Heptabase |
|---|---|---|
| Primary Purpose | Language model / AI reasoning | Visual knowledge management |
| Free Access | Free tier (web chat) | 7-day trial only, then paid |
| Code Performance | 96.3 percentile (Codeforces) | — |
| PDF & Video Annotation | — | ✓ Native |
| Spatial Note Organization | — | ✓ Whiteboards + nesting |
| Mobile Coverage | iOS, Android, web | iOS, web (no Android) |
| API / Developer Access | ✓ Full API | Markdown import/export only |
| Real-time Collaboration | Agent-based (async) | Minimal (single-user focus) |
Synthesized by AI from verified tool data · cached per pair


Unlimited basic conversation, web chat access at chat.deepseek.com
New users receive 5M free tokens (30-day validity), off-peak discounts up to 75% (16:30-00:30 GMT)
Full access for individual users
Full access, billed annually