
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
#1Apollo AI records 0 monthly visits with -100% month-over-month growth and Freemium pricing. DeepSeek records 372,761,591 monthly visits with +4.3% growth and Freemium pricing.
AI research assistant for long PDFs, papers, and literature reviews
| Dimension / Metric | ||
|---|---|---|
| Official Domain | useapollo.app | deepseek.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 0 (0) | 372.76M (372,761,591) |
| MoM Traffic Delta | -434 (-100%) |
| +15.36M (+4.3%) |
| Primary Market & Share | 🌐 Global (—) | 🇨🇳 China (50.5%) |
|---|
| Direct Visits / mo | 0 | 291.59M |
|---|
| User Rating | 4.2 | 4.8 |
|---|
| Supported Platforms | Website | Website |
|---|
AI research assistant for long PDFs, papers, and literature reviews
Upload papers and reports of hundreds of pages and get summaries, extracted findings, and specific answers in seconds without chunking the file yourself.
The assistant generates its own queries, gathers credible sources, cross-checks the information, and returns a report with citations and a reference list.
Draft literature reviews and produce formatted references in APA, MLA, Chicago, Harvard, and IEEE styles.
Turn research data into bar charts, line graphs, pie charts, and scatter plots ready to drop into a paper or presentation.
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.

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.

A free, AI-powered academic search engine for 240M+ papers across every scientific field


AI academic search engine for peer-reviewed science

AI research platform for reading, understanding and writing scientific papers
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.
A free, AI-powered academic search engine for 240M+ papers across every scientific field
AI research platform for reading, understanding and writing scientific papers