
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.
ChatExt - ChatGPT File Uploader records 0 monthly visits with — month-over-month growth and Free pricing. DeepSeek records 372,761,591 monthly visits with +4.3% growth and Freemium pricing.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chromewebstore.google.com | deepseek.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 (0) | 372.76M (372,761,591) |
| MoM Traffic Delta | 0 (—) | +15.36M (+4.3%) |
| Primary Market & Share | 🌐 Global (—) | 🇨🇳 China (50.5%) |
| Direct Visits / mo | 0 | 291.59M |
| User Rating | 4.1 | 4.8 |
| Supported Platforms | Browser Extension | Website |

Add file upload and download buttons to the ChatGPT chat window
Add files straight into the ChatGPT message box instead of pasting their contents by hand.
Attach up to ten files in a single action by clicking or drag-and-drop.
Long documents are split automatically so the attachment fits the conversation without breaking it up.
Dedicated buttons let you save generated code snippets and CSV results directly to your machine.
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.
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.

Your AI agent for the browser: chat, automate and create from one sidebar
Your AI agent for the browser: chat, automate and create from one sidebar

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