
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. SoBrief.com records 726,812 monthly visits with +12.2% growth and Freemium, Free Trial pricing.

Read more books, easier — key ideas from thousands of titles.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | deepseek.com | sobrief.com |
| Pricing Model | Freemium | Freemium, Free Trial |
| Monthly Visits | 372.76M (372,761,591) | 726.81K (726,812) |
| MoM Traffic Delta | +15.36M (+4.3%) | +79.11K (+12.2%) |
| Primary Market & Share | 🇨🇳 China (50.5%) | 🇺🇸 United States (28.4%) |
| Direct Visits / mo | 291.59M | 150.12K |
| User Rating | 4.8 | 4.3 |
| Supported Platforms | Website | Website |
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Leverages a sparse Mixture-of-Experts architecture (49B active parameters out of 1.6T on V4-Pro) to process up to 1 million tokens with minimal latency and memory overhead.
Pioneered by DeepSeek-R1 and integrated into V3.2 and V4 thinking modes, exposing step-by-step self-verification for complex math, logic, and code debugging.
Drops input token costs to $0.003/1M on Flash and $0.022/1M on V4-Pro for cache hits, with 50% lower rates during off-peak UTC hours.
Provides free access at chat.deepseek.com and on iOS/Android with document uploads, reasoning mode, and web search without paywalling core models.

Read more books, easier — key ideas from thousands of titles.
Each book is condensed into a short summary that captures its main ideas and takeaways, so you get the gist in minutes rather than hours.
Summaries come in multiple formats, including text, downloadable PDF and EPUB files, and audio, so you can read, save, or listen.
Browse by genre, author, trending, new, and themed lists, with dedicated Fiction and Nonfiction sections and a personally curated For You feed.
A personal library and import options let you save summaries, organise reading, and pick up where you left off across devices.

Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.

Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks.
Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks.
Delivers superior long-form coding artifacts and nuanced writing, but lacks DeepSeek's specialized open-weight reasoning models.
Delivers superior long-form coding artifacts and nuanced writing, but lacks DeepSeek's specialized open-weight reasoning models.

Features real-time X social data integration, but is less cost-effective for dedicated developer coding workflows.
Features real-time X social data integration, but is less cost-effective for dedicated developer coding workflows.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

SpecialistShare and access study materials worldwide — with AI study tools built in
SpecialistShare and access study materials worldwide — with AI study tools built in

Free / Open-sourceProvides comparable open-weight foundation models and multilingual performance, but requires self-hosting or third-party inference setup.
Free / Open-sourceProvides comparable open-weight foundation models and multilingual performance, but requires self-hosting or third-party inference setup.

SpecialistThe AI coding agent for building ambitious software
SpecialistThe AI coding agent for building ambitious software

SpecialistExcels at ultra-long document analysis and research, but lacks the same level of open-weight developer community support.
SpecialistExcels at ultra-long document analysis and research, but lacks the same level of open-weight developer community support.
Free / Open-sourceEnables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power.
Free / Open-sourceEnables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power.
SpecialistAI flashcards that turn note dumps and PDFs into addictive quiz sessions
SpecialistAI flashcards that turn note dumps and PDFs into addictive quiz sessions

SpecialistAn AI agent that summarizes, transcribes, and turns your ideas into slides, docs, and media
SpecialistAn AI agent that summarizes, transcribes, and turns your ideas into slides, docs, and media