
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. Rayyan records 1,116,437 monthly visits with +7.9% growth and Freemium pricing.
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
| Dimension / Metric | ||
|---|---|---|
| Official Domain | deepseek.com | rayyan.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 372.76M (372,761,591) | 1.12M (1,116,437) |
| MoM Traffic Delta | +15.36M (+4.3%) | +81.92K (+7.9%) |
| Primary Market & Share | 🇨🇳 China (50.5%) | 🇺🇸 United States (18%) |
| Direct Visits / mo | 291.59M | 677.88K |
| User Rating | 4.8 | 4.5 |
| 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.
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
The Systematic Auto-Resolver deduplicates up to 200,000 references using your own inclusion and exclusion protocol with one click.
ResearchPilot delivers zero-shot relevance ratings, an AI Analyzer, an AI Reviewer, and auto-extraction to speed up search, screening, and data capture.
Work through title, abstract, and full-text screening with inclusion and exclusion tagging, conflict resolution, and blinded reviewer modes.
Capture structured study data with configurable extraction fields, apply PICO frameworks, and export results with auto-generated PRISMA diagrams.

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.

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.

Free / Open-sourceProvides a completely free and open academic search database, but lacks collaborative literature review screening tools.
Free / Open-sourceProvides a completely free and open academic search database, but lacks collaborative literature review screening tools.

SpecialistGreat for finding scientific agreement and evidence-backed answers, but lacks dedicated screening queues and systematic review extraction forms.
SpecialistGreat for finding scientific agreement and evidence-backed answers, but lacks dedicated screening queues and systematic review extraction forms.

SpecialistExcellent for reading, chatting with, and summarizing individual papers, but less structured for multi-reviewer systematic review screening.
SpecialistExcellent for reading, chatting with, and summarizing individual papers, but less structured for multi-reviewer systematic review screening.