React Llm vs Spider Cloud
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | React Llm | Spider Cloud |
|---|---|---|
| Pricing | Free (open source MIT) | Freemium, ~$0.03/1k pages; AI Studio add-on $6/mo |
| Primary Use | Client-side in-browser LLM inference via React hooks | Server-side web data extraction for AI/LLMs |
| Execution Environment | Browser (WebGPU) – fully client-side | Cloud API (Rust engine) or self-hosted |
| Model Availability | Vicuna-13B (built-in), load-once cached | AI Studio + Silk custom AI model (extraction, captcha solving) |
| Latest Notable Feature | No recent updates | Browser AI commands (Act, Extract, Observe) via WebSocket (Mar 2026) |
| Browser Support | Chrome 113+ (WebGPU required) | N/A (API-based) |
Choose Spider Cloud if you need real-time web data for AI agents, RAG pipelines, or large-scale scraping. Choose React Llm if you want to run an LLM entirely in the browser with zero server cost and strong privacy. They serve different purposes — data ingestion vs. client-side inference.
AI web scraping API: crawl, scrape, search any site into markdown or JSON at 10k req/min.
Visit WebsiteWho should pick which
- AI agent developer for RAGPick: Spider Cloud
Spider Cloud provides fast, reliable web data extraction with integrations for LangChain and LlamaIndex, perfect for populating a knowledge base.
- Privacy-focused React developerPick: React Llm
React Llm runs entirely in the browser with no data leaving the client, ideal for sensitive data or offline-first apps.
- Solo founder building a chatbotPick: React Llm
Free, easy to integrate with useLLM() hook, and requires no server costs. Good for prototyping a simple chatbot.
- Large-scale data scraping teamPick: Spider Cloud
Cost-effective at $0.03/1k pages, with 99.9% success and unblocker features. Better for high-volume extraction.
- Researcher exploring WebGPU inferencePick: React Llm
React Llm is built on WebGPU and TVM, allowing researchers to test browser-based LLM performance easily.
Frequently Asked Questions
React Llm vs Spider Cloud: which should you choose?
Choose Spider Cloud if you need real-time web data for AI agents, RAG pipelines, or large-scale scraping. Choose React Llm if you want to run an LLM entirely in the browser with zero server cost and strong privacy. They serve different purposes — data ingestion vs. client-side inference.
Can I use Spider Cloud with React Llm together?
Yes, they are complementary. Use Spider Cloud to scrape data and feed it into a React Llm-powered client-side AI assistant.
Does React Llm work on all browsers?
No, it requires Chrome 113+ due to WebGPU support. Firefox and Safari are not supported.
What is the cost of Spider Cloud for a small project?
It is very low. With ~$0.03 per 1k pages, even scraping 100k pages costs $3. The AI Studio add-on is $6/mo optional.
Can React Llm be used for production apps?
It's best for prototypes or niche apps where privacy is critical. For broad production use, consider cloud-based LLM APIs.
Does Spider Cloud offer self-hosting?
Yes, the core is open-source on GitHub for self-hosting. The cloud version adds convenience and managed infrastructure.
How do I get started with React Llm?
Install via npm and use the useLLM() hook. First load downloads the Vicuna-13B model (a few minutes), then cached.
Does Spider Cloud support JavaScript rendering?
Yes, via Browser API with stealth anti-detection, including WebSocket commands for interaction.
What integrations does Spider Cloud support?
LangChain, LlamaIndex, CrewAI, Flowise, AutoGen, Agno, Dify, plus data connectors to S3, GCS, Google Sheets, Azure Blob, Supabase.
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Last reviewed: July 3, 2026