# DeepSeek vs vLex

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

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [vLex](https://openaitools.app/tool/vlex) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://chromewebstore.google.com/detail/vlex/gjdimoodoalmblikhoicpcfnhlkkghgf |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI Copilot, AI Research Tool, AI Legal Assistant |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 372,761,591 | 0 |
| MoM Growth Rate | +4.3% | — |
| Primary Market | China | Global |
| Direct Visits | 291,585,405 | 0 |
| Review Score | 4.8 | 4.3 |
| Saved Count | 44 | 0 |
| Supported Platforms | Website | Browser Extension |

## 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)

## vLex

The vLex extension is designed for people who read legal material on the open web — associates checking a citation in a news article, in-house counsel spotting a case reference in a regulatory update, or students working through a judgment. Rather than copying a citation into a separate search tab, you hover or click the linked reference and land directly on the authoritative document. In parallel, the extension rewrites the experience of Google Search for legal queries by surfacing vLex documents next to the standard result list, which shortens the loop between finding a reference and reading it.

The AI layer, Vincent, is what separates vLex from a plain citation-linker. It uses the page you are viewing as context and suggests related vLex material, and it can answer natural-language legal questions with cited authority. That makes the extension a lightweight front end to the much larger vLex library: complete federal and state case law, legislation, regulations and secondary materials from hundreds of publishers across many countries.

Because vLex's library is a subscription product, the extension itself is the free on-ramp — installation costs nothing, while depth of access is governed by your vLex account. vLex is now part of Clio, and the legal research platform, Vincent AI assistant and this browser extension continue to be developed and maintained under that umbrella, with the extension last updated in October 2024 and used by roughly 100,000 people.

**Pricing & Plans:** The vLex Chrome extension is free to install and is distributed as a freemium gateway to the paid vLex legal research library. Full documents and the deeper Vincent AI research workflows require a vLex/Clio account or subscription; enterprise and law-firm pricing is quoted on request. Confirm current tiers and trial terms on vlex.com before budgeting.

- **Automatic citation linking on any web page:** The extension scans the page you are reading and turns case names, citations and statutory references into clickable links that open the matching document on vLex.com, so you can verify authority without leaving your tab.
- **AI-powered related material recommendations:** Vincent AI reads the context of the content in front of you and recommends relevant vLex cases, statutes and commentary, letting you explore the surrounding legal landscape in one click.
- **Google Search enhancement:** Search results are augmented with related vLex documents, so case law, legislation and secondary sources appear beside ordinary web results instead of being buried several pages deep.
- **Vincent AI research companion:** Beyond the extension, Vincent AI accepts natural-language legal questions and returns structured answers with linked citations, and can generate multi-jurisdiction surveys for comparative work.
- **Multi-language support:** The extension ships in six languages including English, Catalan, Spanish, French, Italian and Brazilian Portuguese, matching vLex's international coverage across many jurisdictions.

**Strengths:** Turns citations on ordinary web pages into one-click access to authoritative legal documents; Vincent AI adds contextual recommendations and citation-backed answers on top of the browsing experience; Enhances Google Search for legal topics with vLex case law, legislation and commentary; Wide international coverage and six interface languages suit cross-border research

**Limitations:** The extension exposes vLex content rather than giving free access to it — a paid vLex/Clio subscription is still required for full documents; Injected citation links may occasionally be irrelevant on news, blog, or non-legal pages; Value depends heavily on whether you already subscribe to a supported legal database

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

## Frequently Asked Questions

### How do DeepSeek and vLex compare in monthly traffic?

DeepSeek has 372,761,591 monthly visits, while vLex 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%; vLex has —.

### 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). vLex: Freemium. The vLex Chrome extension is free to install and is distributed as a freemium gateway to the paid vLex legal research library. Full documents and the deeper Vincent AI research workflows require a vLex/Clio account or subscription; enterprise and law-firm pricing is quoted on request. Confirm current tiers and trial terms on vlex.com before budgeting.

## 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 | [Thomson Reuters](https://openaitools.app/tool/thomson-reuters) | 17,919,413 | +5.5% | Contact for Pricing | Purpose-built AI and trusted content for legal, tax, risk and trade professionals | [.md](https://openaitools.app/tool/thomson-reuters.md) |
| 10 | [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) |

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Source: https://openaitools.app/compare/deepseek-vs-vlex

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