DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. iSummarizer records 10,849 monthly visits with -28.6% growth and Paid pricing.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Instant AI summaries of documents, articles and long text
| Dimension / Metric | | |
|---|---|---|
| Official Domain | deepseek.com | isummarizer.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 372.76M (372,761,591) | 10.85K (10,849) |
| MoM Traffic Delta | +15.36M (+4.3%) | -4.35K (-28.6%) |
| Primary Market & Share | 🇨🇳 China (50.5%) | 🌐 Global (—) |
| Direct Visits / mo | 291.59M | 10.85K |
| User Rating | 4.8 | 3.9 |
| 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.
Instant AI summaries of documents, articles and long text
Paste up to 200,000 characters, upload a document or drop in article text and get a condensed summary with one click.
Dedicated modes for Word documents, PDFs, PowerPoint decks and full-length articles, so each format gets appropriate handling.
Beyond summarizing, the platform includes a paraphrasing tool and a grammar checker for polishing the text you produce.
Convert text inside images to editable content, and translate documents or passages into other languages from the same workspace.
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.
Turn long articles and reports into clear key points in seconds
Turn long articles and reports into clear key points in seconds
Paraphrase, proofread and summarize text with an AI writing workspace
Paraphrase, proofread and summarize text with an AI writing workspace
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 AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device
