# DeepSeek vs Writefull

DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. Writefull records 209,118 monthly visits with -6.6% growth and Freemium, Paid, Contact for Pricing pricing.

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [Writefull](https://openaitools.app/tool/writefull-com) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://writefull.com |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI Writing Assistants, AI Proofreading, AI Writing, AI Paraphraser |
| Pricing Model | Freemium | Freemium, Paid, Contact for Pricing |
| Monthly Visits | 372,761,591 | 209,118 |
| MoM Growth Rate | +4.3% | -6.6% |
| Primary Market | China | Philippines |
| Direct Visits | 291,585,405 | 46,248 |
| Review Score | 4.8 | 4.4 |
| 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)

## Writefull

Writefull is a writing and proofreading tool designed for academics. Instead of relying on general-purpose language models, it uses models trained on millions of journal articles, so its feedback is tuned to the conventions, phrasing, and style of research writing. That calibration is why it tends to catch problems that generic proofreaders overlook, from awkward collocations to non-native phrasing that reads oddly in a paper.

The product lives where researchers already write. Writefull for Word delivers automatic language feedback inside Microsoft Word and can paraphrase, change style, explain, or summarize text. Writefull for Overleaf works within your LaTeX code and adds TeXGPT, which writes LaTeX for tables, formulas, and equations on demand. For pre-submission checks, Writefull Revise lets you upload a document, see its overall language quality, and fix errors with Track Changes. A set of AI widgets rounds things out: the Academizer turns informal sentences academic, the Paraphraser rewrites at three levels, and dedicated generators draft titles and abstracts based on your text or paper.

Writefull is used by students and researchers at more than 1,500 institutions and by major publishers and copyeditors, and it offers group and departmental licensing as well as premium access through institutional subscriptions. On privacy, the company states that texts and searches are processed over an encrypted connection and are never stored or used for training. It is available as a freemium product with paid and enterprise tiers.

**Pricing & Plans:** Writefull is sold as a freemium product: core features can be tried for free, while the full writing and proofreading toolkit requires a paid subscription. Institutional, group, and departmental licenses are available, along with premium access for universities and publishers and an enterprise offer. Exact pricing is provided on the vendor's site and via quote and may change.

- **Writefull for Word:** Get in-context language feedback automatically inside Microsoft Word, with options to paraphrase, change style, explain, or summarize text.
- **Writefull for Overleaf and TeXGPT:** Receive language feedback directly within your LaTeX code in Overleaf, generate LaTeX automatically, and use TeXGPT for tables, formulas, and equations.
- **Writefull Revise:** Upload a document before submission to see its overall language quality and apply corrections with Track Changes.
- **AI writing widgets:** Academizer turns informal sentences academic, the Paraphraser offers rewrites at three levels, and generators draft titles and abstracts from your text.
- **Citation support:** Writefull Cite helps you add and manage citations, rounding out a toolkit built for the academic publishing workflow.

**Strengths:** Language feedback specifically calibrated for academic writing; Integrates directly into Word and Overleaf workflows; Widgets for paraphrasing, academicizing, and generating titles and abstracts; TeXGPT automates LaTeX authoring for tables and equations

**Limitations:** Focused on academic English, so less suited to casual or marketing writing; Full premium features require a paid subscription or institutional access; Works best inside Word or Overleaf, so plain-text workflows are less covered; Non-English source support is limited compared to general proofreaders

[Profile (Markdown)](https://openaitools.app/tool/writefull-com.md)

## Frequently Asked Questions

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

DeepSeek has 372,761,591 monthly visits, while Writefull has 209,118. 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%; Writefull has -6.6%.

### 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). Writefull: Freemium, Paid, Contact for Pricing. Writefull is sold as a freemium product: core features can be tried for free, while the full writing and proofreading toolkit requires a paid subscription. Institutional, group, and departmental licenses are available, along with premium access for universities and publishers and an enterprise offer. Exact pricing is provided on the vendor's site and via quote and may change.

## 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 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Offers seamless cross-platform grammar checking, but lacks Writefull's deep domain tuning for academic vocabulary and research phrasing. | [.md](https://openaitools.app/tool/grammarly.md) |
| 7 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Paraphrase, proofread and summarize text with an AI writing workspace | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 8 | [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) |
| 9 | [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) |
| 10 | [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) |

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Source: https://openaitools.app/compare/deepseek-vs-writefull-com

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