# DeepSeek vs Quantum Copilot

DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. Quantum Copilot records 0 monthly visits with 0% growth and subscription pricing.

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [Quantum Copilot](https://openaitools.app/tool/quantum-copilot) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://qc.vuics.com |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI Copilot, AI Code Generator, AI Assistant, AI API |
| Pricing Model | Freemium | subscription |
| Monthly Visits | 372,761,591 | 0 |
| MoM Growth Rate | +4.3% | 0% |
| Primary Market | China | Global |
| Direct Visits | 291,585,405 | 0 |
| Review Score | 4.8 | 4.1 |
| Saved Count | 44 | 2 |
| 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)

## Quantum Copilot

Quantum Copilot is a conversational AI platform for quantum computing. Instead of one generic chatbot, it presents a set of named modes, each tuned to a different job: ⟨Quantum|Adviser⟩ answers questions about hardware, software, algorithms, error correction, communication, sensing and research; ⟨Quantum|Researcher⟩ draws on papers, books, company blogs and the wider web; ⟨Quantum|Formatter⟩ handles the maths and physics presentation. The result is an assistant that behaves like a knowledgeable colleague across the quantum stack.

For hands-on work, the ⟨Quantum|Programmer⟩ mode generates code in quantum languages and libraries such as OpenQASM, Q#, Qiskit, Cirq and QCEngine, and the ⟨Quantum|Transpiler⟩ mode converts quantum code between formats including pyQuil, Quil, Q#, Braket, TensorFlow Quantum, pyAQASM and Quirk. The ⟨Quantum|Simulator⟩ and ⟨Quantum|Hardware⟩ modes then let you run circuits on web and cloud simulators or on real quantum hardware from providers such as IBM.

Beyond the chat interface, Quantum Copilot exposes an API so you can use it from a terminal, a Jupyter Notebook or your own application with the qcopilot-js toolkit. It also describes more experimental 'Creative' uses such as drawing circuits as SVG and running notebooks, positioning it as a broad, programming-friendly companion for anyone working with quantum technology.

**Pricing & Plans:** Quantum Copilot is offered as a hosted platform with subscription-style access and API usage. The site does not publish a detailed public price list, so check the platform or the project repository for current plans and limits.

- **Multiple specialist modes:** One assistant with focused modes: Adviser for hardware and software questions, Researcher for pulling from papers, blogs and the web.
- **Quantum code generation and transpilation:** The Programmer mode writes OpenQASM, Q# and Qiskit/Cirq code, while the Transpiler mode converts between languages like pyQuil, Quil, Braket and TensorFlow Quantum.
- **Simulation and real hardware:** Run circuits on web and cloud simulators, or execute established algorithms on real quantum hardware from providers such as IBM.
- **Text, math and circuit diagrams:** Answers can include plain text, Markdown, MathJax math, code, images and diagrams of quantum circuits thanks to the Formatter mode.
- **Programmatic API access:** Call the platform from your own scripts, terminals or notebooks, for example through the qcopilot-js tool and a documented endpoint.

**Strengths:** Covers the whole quantum workflow, from theory questions to code, simulation and hardware runs; Transpiler support across many languages and libraries saves manual rewriting; API and command-line access make it easy to embed in notebooks and scripts; Handles maths and circuit diagrams, not just plain text

**Limitations:** Requires some familiarity with quantum concepts to get the most out of answers; Hardware execution depends on third-party providers such as IBM, so results vary; No public, transparent pricing page for self-service sign-up details

[Profile (Markdown)](https://openaitools.app/tool/quantum-copilot.md)

## Frequently Asked Questions

### How do DeepSeek and Quantum Copilot compare in monthly traffic?

DeepSeek has 372,761,591 monthly visits, while Quantum Copilot has 0. 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%; Quantum Copilot has 0%.

### 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). Quantum Copilot: subscription. Quantum Copilot is offered as a hosted platform with subscription-style access and API usage. The site does not publish a detailed public price list, so check the platform or the project repository for current plans and limits.

## 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 | [Google Antigravity](https://openaitools.app/tool/google-antigravity) | 16,054,109 | +8.1% | Freemium | Google's agent-first development platform for building and shipping software with AI agents | [.md](https://openaitools.app/tool/google-antigravity.md) |
| 10 | [Replit](https://openaitools.app/tool/replit) | 10,016,437 | -7.7% | Freemium, Paid | Describe your idea and Replit builds a working app in minutes | [.md](https://openaitools.app/tool/replit.md) |

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Source: https://openaitools.app/compare/deepseek-vs-quantum-copilot

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