# DeepSeek vs Ghost Engineer

DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. Ghost Engineer records 997 monthly visits with +831.8% growth and Freemium, Free Trial, Paid pricing.

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [Ghost Engineer](https://openaitools.app/tool/ghost-engineer) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://ghostengineer.com |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI Interview Assistant, AI Code Assistant, AI Copilot, AI Code Generator |
| Pricing Model | Freemium | Freemium, Free Trial, Paid |
| Monthly Visits | 372,761,591 | 997 |
| MoM Growth Rate | +4.3% | +831.8% |
| Primary Market | China | India |
| Direct Visits | 291,585,405 | 385 |
| Review Score | 4.8 | 4.1 |
| Saved Count | 44 | 0 |
| Supported Platforms | Website | Website |

## DeepSeek

DeepSeek (Hangzhou DeepSeek Artificial Intelligence Co., Ltd.) is a frontier AI research organization that disrupted the global LLM market by pairing open-weight transparency with breakthrough Mixture-of-Experts (MoE) and reinforcement-learning reasoning efficiency. Following the landmark releases of DeepSeek-V3 and the peer-reviewed DeepSeek-R1 reasoning model, DeepSeek introduced the DeepSeek-V4 generation in 2026—featuring a hybrid attention architecture and a native 1-million-token context window across DeepSeek-V4-Pro (1.6T total parameters, 49B active per token) and DeepSeek-V4.1-Flash (284B total parameters, 13B active per token).

Users can interact with DeepSeek in three ways: completely free through the consumer web portal (chat.deepseek.com) and mobile apps with one-click toggles for deep thinking and live web search; via DeepSeek's hosted, OpenAI-compatible developer API; or by self-hosting DeepSeek's open-weight checkpoints (including V3, R1, Prover-V2, and distilled Qwen/Llama variants) on private infrastructure. The models excel at competitive mathematics, algorithm design, repository-level software engineering, and structured data extraction, with automatic context caching on the API that slashes repeated prompt costs by over 95%.

In late 2026, DeepSeek remains the price-performance benchmark for developers and automation workflows. While the consumer chat interface remains free without a mandatory $20/month subscription tier, the developer API transitioned in late 2026 to two primary endpoints—`deepseek-flash` and `deepseek-v4-pro`—with time-of-day pricing. Off-peak API calls cost just $0.15 per million input tokens ($0.003 on cache hits) and $0.60 per million output tokens on Flash, and $0.66 input / $1.98 output on V4-Pro, making it a fraction of the cost of comparable Western frontier models.

**Pricing & Plans:** Free web and mobile chat app at chat.deepseek.com; pay-as-you-go OpenAI-compatible API with off-peak rates at $0.15/1M input ($0.003 cache hit) and $0.60/1M output for deepseek-flash (V4.1-Flash), and $0.66/1M input ($0.022 cache hit) and $1.98/1M output for deepseek-v4-pro (peak weekday UTC hours bill at 2x).

- **DeepSeek-V4 Hybrid Attention & 1M Context:** 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.
- **Transparent Chain-of-Thought Reasoning:** 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.
- **Automatic Context Caching & Off-Peak API Pricing:** 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.
- **Free Consumer Web & Mobile Assistant:** Provides free access at chat.deepseek.com and on iOS/Android with document uploads, reasoning mode, and web search without paywalling core models.
- **Open-Weight Ecosystem & Self-Hosting Freedom:** Offers open weights for DeepSeek-V3, R1, Distill variants, and Prover models on Hugging Face and GitHub so enterprises can deploy within air-gapped environments.

**Strengths:** Completely free consumer web and mobile app with deep reasoning and web search included; Ultra-low API token rates ($0.15/$0.60 on Flash, $0.66/$1.98 on V4-Pro off-peak) with up to 98% savings on cached inputs; Drop-in OpenAI API compatibility makes switching or routing between models effortless; Strong open-weight lineage allows teams to self-host or fine-tune models without vendor lock-in

**Limitations:** Hosted API and web app store data on servers in China, prompting compliance restrictions for some Western enterprises and government agencies; Peak-hour API pricing (01:00–04:00 and 06:00–10:00 UTC on weekdays) doubles per-token costs compared to off-peak rates; Lacks native voice mode, video generation, and productivity suite integrations offered by ChatGPT and Google Gemini

[Profile (Markdown)](https://openaitools.app/tool/deepseek.md)

## Ghost Engineer

Ghost Engineer positions itself as an interview-time tool rather than an interview-preparation course. Instead of grinding practice problems, you launch the app before the call, keep it running in the background, and capture any question that appears in the shared editor or video chat. The app then produces a solution in the language of your choice, plus optimization notes and a short talk track you can read aloud.

The design goal is discretion. There is no floating overlay and no window that shifts focus, so nothing appears in a screen share. It works alongside common interview platforms such as CoderPad, CodeSignal, HackerRank, and LeetCode, and it can answer in the same language you wrote your prompt in. Supported languages include Python, JavaScript, TypeScript, Java, Kotlin, Swift, Dart, C#, C++, Go, Rust, Ruby, PHP, SQL, R, HTML/CSS, Bash, Perl, Julia, Scala, and MATLAB.

It is a paid desktop product with a free demo mode, an internet connection requirement, and macOS/Windows builds. Because it is explicitly built for use during a proctored or live evaluation, the ethical and contractual responsibility for using it rests entirely with the candidate and the rules of the hiring process.

**Pricing & Plans:** Free demo mode to test the workflow, then subscription tiers: $79.99 per month or $199.99 for three months (roughly 15% savings). No credit card is required to start the free version.

- **Screen-share safe operation:** Runs without overlays, dock icons, or focus-stealing windows so it does not show up visibly during a shared screen.
- **Solution plus talk track:** Returns a complete working solution together with complexity analysis and explanation points you can say out loud.
- **20+ language coverage:** Handles Python, Java, C++, Go, Rust, TypeScript, SQL, and many more, with responses in the language you prompt in.
- **One-hotkey capture:** Screenshot any question from any editor or chat window and get an answer back in seconds during the round.
- **System design and optimization help:** Goes beyond passing tests by suggesting better data structures, lower complexity, and follow-up improvements.

**Strengths:** Purpose-built for live rounds rather than practice, so the workflow is optimized for speed; No overlay and no focus shifts, which reduces the risk of an obvious visual giveaway; Answers arrive with explanation points, not just code, which helps you keep talking; Supports a very wide set of programming languages in one desktop app

**Limitations:** Requires an internet connection, so it cannot be used offline or on locked-down machines; No student pricing and no free tier beyond a limited demo mode; Using assistive tools during proctored interviews may violate employer or platform rules, so risk sits with the user

[Profile (Markdown)](https://openaitools.app/tool/ghost-engineer.md)

## Frequently Asked Questions

### How do DeepSeek and Ghost Engineer compare in monthly traffic?

DeepSeek has 372,761,591 monthly visits, while Ghost Engineer has 997. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

DeepSeek has a month-over-month growth rate of +4.3%; Ghost Engineer has +831.8%.

### How does pricing compare?

DeepSeek: Freemium. Free web and mobile chat app at chat.deepseek.com; pay-as-you-go OpenAI-compatible API with off-peak rates at $0.15/1M input ($0.003 cache hit) and $0.60/1M output for deepseek-flash (V4.1-Flash), and $0.66/1M input ($0.022 cache hit) and $1.98/1M output for deepseek-v4-pro (peak weekday UTC hours bill at 2x). Ghost Engineer: Freemium, Free Trial, Paid. Free demo mode to test the workflow, then subscription tiers: $79.99 per month or $199.99 for three months (roughly 15% savings). No credit card is required to start the free version.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Google Gemini](https://openaitools.app/tool/gemini-gemini-advanced) | 2,637,398,242 | -0.1% | Freemium | Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks. | [.md](https://openaitools.app/tool/gemini-gemini-advanced.md) |
| 3 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Delivers superior long-form coding artifacts and nuanced writing, but lacks DeepSeek's specialized open-weight reasoning models. | [.md](https://openaitools.app/tool/claude-2.md) |
| 4 | [Grok](https://openaitools.app/tool/grok) | 203,846,050 | -0.8% | Freemium | Features real-time X social data integration, but is less cost-effective for dedicated developer coding workflows. | [.md](https://openaitools.app/tool/grok.md) |
| 5 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 6 | [Qwen 4 (Alibaba Qwen4)](https://openaitools.app/tool/qwen-4) | 35,101,353 | -6.2% | Freemium | Provides comparable open-weight foundation models and multilingual performance, but requires self-hosting or third-party inference setup. | [.md](https://openaitools.app/tool/qwen-4.md) |
| 7 | [Cursor](https://openaitools.app/tool/cursor) | 23,297,751 | +8.4% | Freemium | The AI coding agent for building ambitious software | [.md](https://openaitools.app/tool/cursor.md) |
| 8 | [Kimi AI](https://openaitools.app/tool/kimi-chat) | 19,632,261 | -23.4% | Free | Excels at ultra-long document analysis and research, but lacks the same level of open-weight developer community support. | [.md](https://openaitools.app/tool/kimi-chat.md) |
| 9 | [Ollama](https://openaitools.app/tool/ollama) | 9,421,973 | +4.3% | Free, Freemium, Paid | Enables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power. | [.md](https://openaitools.app/tool/ollama.md) |
| 10 | [Dify](https://openaitools.app/tool/dify-ai) | 819,691 | -15% | Freemium | Build, deploy, and govern production-ready agentic AI workflows | [.md](https://openaitools.app/tool/dify-ai.md) |

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Source: https://openaitools.app/compare/deepseek-vs-ghost-engineer

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