# DeepSeek vs LangSearch

DeepSeek records 372,761,591 monthly visits with +4.3% month-over-month growth and Freemium pricing. LangSearch records 1,996 monthly visits with +10.5% growth and Freemium pricing.

| Metric | [DeepSeek](https://openaitools.app/tool/deepseek) | [LangSearch](https://openaitools.app/tool/langsearch) |
| :--- | :--- | :--- |
| Website URL | https://www.deepseek.com | https://langsearch.com |
| Categories | Large Language Models (LLMs), Open Source AI Models, AI API, AI Chatbot | AI API, AI Search Engine, Large Language Models (LLMs) |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 372,761,591 | 1,996 |
| MoM Growth Rate | +4.3% | +10.5% |
| Primary Market | China | India |
| Direct Visits | 291,585,405 | 786 |
| Review Score | 4.8 | 4.3 |
| 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)

## LangSearch

LangSearch is an API-first web search layer for AI applications. Instead of bolting a scraping pipeline onto your agent, you issue one search request and receive structured results — titles, source links, snippets, dates, and optionally the full text of each page up to a configurable character limit. Because the payload is measured in tokens rather than requests, you control how much context each answer consumes, and the same allowance covers both API calls and MCP calls.

Integration is deliberately broad. LangSearch exposes a conventional HTTP API for backend code, an MCP endpoint for agent frameworks, and a skill format for coding assistants, with copy-paste setup snippets published for Codex, Claude Code, Cursor, VS Code, Gemini CLI, OpenCode, Windsurf, Cline, Roo Code and Zed. Filters include domain inclusion and exclusion, freshness presets, exact dates or date ranges, and up to 50 results per request.

The commercial pitch is radical simplicity: every supported search feature is included in the free plan, input and output token prices are currently listed at $0, and there are no per-request fees or feature add-ons. A daily token allowance applies and resets at 00:00 UTC; new accounts start at about 5 requests per second with per-minute and per-day token limits visible in the dashboard. For enterprises, the site advertises SOC 2 Type II audit, zero data retention options, GDPR-aligned handling and a 99.99% availability SLA, with a separate route to contact the team.

**Pricing & Plans:** Free plan with all web search features included, $0 listed input/output token pricing, daily token allowance resetting at 00:00 UTC, and roughly 5 requests per second for new accounts. Enterprise security and SLA options are available by contacting the team.

- **Free web search API:** Issue search queries and receive titles, source links and snippets with no per-request charges on the free plan.
- **Full webpage text:** Request full page content instead of snippets and cap it per result with a max_characters setting.
- **MCP, Skill and REST access:** Call the same search engine from an HTTP API, an MCP endpoint for agents, or a skill for coding assistants.
- **Domain and date filtering:** Restrict results with includeDomains and excludeDomains, plus freshness presets, single dates or inclusive date ranges.
- **Token-based usage control:** Query tokens count as input and returned content as output, with per-minute, per-day limits and a live dashboard.

**Strengths:** All supported search features are bundled into a free plan with no per-request add-ons; Three integration paths — REST API, MCP server and agent skill — cover most agent stacks; Token metering plus domain and date filters give fine control over context size and relevance; Enterprise posture includes SOC 2 Type II audit, zero data retention options and an availability SLA

**Limitations:** Large or frequent workloads are governed by a daily token allowance rather than truly unlimited throughput; New accounts are rate limited to roughly 5 requests per second initially; Free-tier figures such as $0 token pricing are current published rates and can change

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

## Frequently Asked Questions

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

DeepSeek has 372,761,591 monthly visits, while LangSearch has 1,996. 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%; LangSearch has +10.5%.

### 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). LangSearch: Freemium. Free plan with all web search features included, $0 listed input/output token pricing, daily token allowance resetting at 00:00 UTC, and roughly 5 requests per second for new accounts. Enterprise security and SLA options are available by contacting the team.

## 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 | [Firecrawl](https://openaitools.app/tool/firecrawl-dev) | 1,828,239 | -1.9% | Freemium, Contact for Pricing | Web data API that turns any site into clean, AI-ready content | [.md](https://openaitools.app/tool/firecrawl-dev.md) |

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

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)