
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
#1DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. Simplicity AI records 326 monthly visits with -89% growth and Freemium pricing.

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| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | deepseek.com | simplicity.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 372.76M (372,761,591) | 326 (326) |
| MoM Traffic Delta |
| +15.36M (+4.3%) |
| -2.64K (-89%) |
| Primary Market & Share | 🇨🇳 China (50.5%) | 🇺🇸 United States (100%) |
|---|
| Direct Visits / mo | 291.59M | 128 |
|---|
| User Rating | 4.8 | 4.2 |
|---|
| 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.

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Upload any PDF form and let the AI populate it from a source document such as an ID, passport, resume, or previously completed form, with field matching across the two files.
Static, scanned, or flat PDFs are detected and rebuilt as structured digital forms with real text fields, checkboxes, and dropdowns you can edit in the browser.
Snap a picture of a license, passport, or bank statement and the AI extracts the data and drops it into the matching fields automatically.
Sign forms with a finger, stylus, or typed text, record a signature once, and reuse it across documents without printing or scanning.

Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
#1
Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks.
#2Delivers 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.
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.

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.
Free / Open-sourceEnables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power.
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All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents
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.
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.
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.
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.
Free / Open-sourceEnables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power.
Free AI-powered PDF editor, converter and reader for every device
All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents