# DeepSeek vs Factful

DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. Factful records 0 monthly visits with -100% growth and Freemium (free for a limited time; regular plan listed at $9.99) pricing.

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [Factful](https://openaitools.app/tool/factful) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://factful.io |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI Writing Assistants, AI Proofreading, AI Grammar Checker, AI Spell Check |
| Pricing Model | Freemium | Freemium (free for a limited time; regular plan listed at $9.99) |
| Monthly Visits | 372,761,591 | 0 |
| MoM Growth Rate | +4.3% | -100% |
| Primary Market | China | Global |
| Direct Visits | 291,585,405 | 0 |
| Review Score | 4.8 | 4.2 |
| Saved Count | 44 | 1 |
| 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)

## Factful

Most editors stop at grammar. Factful's premise is that correctness and accuracy belong in the same pass: it checks spelling and grammar while also verifying factual statements against live web sources. The product describes scraping the web in real time and then scanning and filtering that material to surface only the most credible sources, which is what makes a factual claim verifiable rather than merely plausible.

When it flags something, Factful does not just underline it — the analytics view lets you monitor corrections, see how your accuracy evolves across subjects, and identify which errors you make most often. That feedback loop suits writers who care about improving over time, not just shipping a clean draft. An in-line slash command system, which the product calls the 'New Everything Key', puts formatting and writing actions a few keystrokes away so you stay in the flow of composition.

Factful is delivered as a writing environment with a Chrome extension presence, and the site lists support for a very wide range of languages. At the time of review the product was advertising full access at no cost under a 'free for a limited time' banner, with a regular price of about $9.99 per month; features listed across the two tiers include advanced fact-checking, analytics, slash commands, advanced proofreading, model fine-tuning and faster processing. Because limited-time offers change, treat any specific price as subject to change and confirm on the site.

**Pricing & Plans:** Freemium-style access: at the time of review Factful advertised full access free for a limited time, with a regular plan listed at $9.99 (the site shows it crossed out / $0 during the promotion). Verify current pricing on the official site, as limited-time offers expire.

- **Factuality checking, not just grammar:** Factful verifies factual statements against live web sources, filtering the material it finds for credibility rather than simply matching wording.
- **Spelling and grammar in the same pass:** Proofreading runs alongside fact-checking so you fix surface errors and substantive inaccuracies in one workflow instead of switching tools.
- **Real-time accuracy analytics:** Monitor corrections, track how your accuracy evolves over time and spot the errors that recur across subjects.
- **In-line slash commands:** A command system the product brands the 'Everything Key' lets you trigger writing and formatting actions without leaving the line you are editing.
- **Broad language coverage:** Factful is positioned to check writing across a large number of languages, making it usable for multilingual drafting.

**Strengths:** Unusual combination of proofreading and live fact-checking in a single editor, so accuracy is not a separate step; Real-time analytics that show correction trends and recurring error types rather than just flagging one instance; Slash-command workflow keeps formatting and writing actions inside the line you are editing; Broad language support suits multilingual drafting

**Limitations:** Fact-checking quality depends on the sources it can scrape and filter, so niche or offline claims may not be verifiable; The site's limited-time free-access pricing makes total cost hard to predict; confirm current terms before relying on it

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

## Frequently Asked Questions

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

DeepSeek has 372,761,591 monthly visits, while Factful 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%; Factful has -100%.

### 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). Factful: Freemium (free for a limited time; regular plan listed at $9.99). Freemium-style access: at the time of review Factful advertised full access free for a limited time, with a regular plan listed at $9.99 (the site shows it crossed out / $0 during the promotion). Verify current pricing on the official site, as limited-time offers expire.

## 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 | [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) |
| 7 | [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) |
| 8 | [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) |
| 9 | [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) |
| 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-factful

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