
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. UMLGenius records 0 monthly visits with — growth and Free pricing.

Turn a plain-language system description into a UML diagram in your browser
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | deepseek.com | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 372.76M (372,761,591) | 0 (0) |
| MoM Traffic Delta |
|---|
| +15.36M (+4.3%) |
| 0 (—) |
| Primary Market & Share | 🇨🇳 China (50.5%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 291.59M | 0 |
|---|
| User Rating | 4.8 | 4.2 |
|---|
| Supported Platforms | Website | Browser Extension |
|---|
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.

Turn a plain-language system description into a UML diagram in your browser
Type a description of your system — entities, responsibilities, interactions — and the extension returns a ready-to-review UML diagram instead of requiring manual drawing.
ChatGPT handles interpretation of the request while PlantUML does the rendering, combining LLM flexibility with deterministic diagram output.
Because it runs as a browser extension, it sits alongside the tabs you already use for coding, issue trackers, and documentation.
Designed for speed: what would take hours of dragging boxes and arrows in a desktop modeling tool becomes a prompt and a quick correction pass.

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.

Free / Open-sourceBuild, deploy, and govern production-ready agentic AI workflows

Free / Open-sourceOffers a feature-rich self-hosted chat interface for local models, but requires you to provide your own underlying LLM backend.
AI diagrams and technical design docs built from your code and systems
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 / Open-sourceBuild, deploy, and govern production-ready agentic AI workflows
Free / Open-sourceOffers a feature-rich self-hosted chat interface for local models, but requires you to provide your own underlying LLM backend.
AI diagrams and technical design docs built from your code and systems