
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.
DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. GPTSyncScore records 0 monthly visits with — growth and Free pricing.

Measure how much ChatGPT changed your original text
| 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 | 3.6 |
| 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.

Measure how much ChatGPT changed your original text
Computes a numeric correlation score between your original text and the ChatGPT-generated version so you can quantify how much the content changed.
Paste the original text and the AI-generated text into the extension, then press Calculate for an immediate result.
The resulting score can be copied to the clipboard directly from the extension for use in notes, reports, or messages.
Built to help writers understand and disclose how much AI assistance shaped a given piece of text.

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.
AI content detection and a full writing toolkit in one place
AI content detection and a full writing toolkit in one place

SpecialistThe AI coding agent for building ambitious software
SpecialistThe AI coding agent for building ambitious software
AI detection and writing verification built for schools and editors

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.
Detect, humanize and verify AI content in one place
Detect, humanize and verify AI content in one place