Nos vs Spider Cloud

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-09-14
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At a glance

DimensionNosSpider Cloud
Primary UseMulti-model inference server for PyTorchWeb crawling and scraping API for AI agents
Hardware SupportNVIDIA GPUs, AWS Inferentia2, CPUsN/A (cloud API)
Key FeatureOpenAI-compatible REST & gRPC APIAI Studio natural language crawling
Best ForDeploying PyTorch models in productionRAG pipelines and AI agents needing web data
Latest NewsNo significant product news (Nosdesk unrelated)Browser AI commands, data connectors, scraper catalog

Choose NOS if you need an open-source inference server to deploy and serve multiple PyTorch models (LLMs, vision, etc.) on your own hardware. Choose Spider Cloud if you need a fast, cost-effective web scraping API tailored for AI agents and RAG pipelines. They solve different problems; the decision hinges on whether you need model serving or web data extraction.

Try NosTry Spider Cloud
Nos
Nos

Open-source PyTorch inference server for serving multiple models anywhere.

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Spider Cloud
Spider Cloud

Spider Cloud is an AI web scraping API that turns any site into markdown or JSON for agents and RAG.

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Pricing
Free
Freemium
Plans
—
$1/GB + $0.001/min CPU
from $6/mo
$40/mo
$350/mo
Popularity
10 views
7.5k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
APICLI
WebAPI
Categories
🖥️ GPU Cloud & Model Inference
🌐 Web Scraping & Search APIs🖱️ Browser & Computer-Use Agents
Features
Multi-model serving (LLMs, diffusion, embeddings, ASR, detection) simultaneously
OpenAI-compatible REST API with streaming
gRPC API for low-latency inference
HW-aware runtime (NVIDIA GPUs, AWS Inferentia2, CPUs, AMD soon)
Cloud-agnostic Docker containers (AWS, GCP, Azure, Lambda Labs, on-prem)
Custom PyTorch model support via playground
Shared memory for efficient CPU-GPU transfer
Built-in profiling with NOS Profiler
SkyPilot integration for spot instance deployment
Auto-detection of environment and runtime image download
CLI tools (nos serve, nos system)
Telemetry opt-out via NOS_TELEMETRY_ENABLED=0
Apache-2.0 license
Open-sourced playground with example apps
Support for Whisper, CLIP, Stable Diffusion XL, TinyLlama, YOLOX
Scrape a single page into markdown, JSON, HTML, raw text, or plain text
Crawl entire sites with pages streaming back as JSONL, in order, as each finishes
Web search endpoint returns SERP results, scraped pages, and AI extraction in one call
Custom browser renders pages like a user: scripts run, lazy images load, infinite scroll completes
Unblocker handles bot walls, CAPTCHAs, and geo checks with automatic retries and rotating proxies
Browser Cloud runs full browser sessions with stealth and CAPTCHA solving on by default
AI commands (Act, Extract, Observe) sent directly over the Browser API WebSocket
AI Studio Alpha exposes natural-language extraction endpoints on your existing key
Two-phase AI extraction fallback: fast model for most pages, capable model for complex layouts
Proxy network with 215M+ residential and ISP exits across 199 countries, rotated per request
MCP server at mcp.spider.cloud for Claude Code, Codex, Cursor, Windsurf, and Claude Desktop
Agent skill file (SKILL.md) lets a coding agent self-onboard against the entire API
1,000+ ready-made scraper examples across 32 categories, each with working code
Provider router lets you fall back to outside providers on your own keys
10,000 core API requests per minute per account by default
Integrations
SkyPilot
LangChain
LlamaIndex
CrewAI
FlowiseAI
Langflow
Dify
Agno
Julep
Claude Code
Codex
Cursor
Windsurf
Claude Desktop

Who should pick which

  • AI engineer deploying PyTorch models
    Pick: Nos

    NOS is designed for multi-model PyTorch serving with hardware optimization and cloud-agnostic deployment.

  • Developer building RAG pipeline
    Pick: Spider Cloud

    Spider Cloud provides fast web scraping and structured output ideal for feeding up-to-date data into RAG systems.

  • Solo founder struggling with cost
    Pick: Nos

    NOS is free and open-source, lowering barrier for model serving without per-query fees.

  • Data scientist needing to scrape 1000s of pages
    Pick: Spider Cloud

    Spider Cloud's Rust engine and low per-page cost ($0.03/1k pages) make it economical for large scale.

  • Team wanting no-code AI tool
    Pick: Spider Cloud

    Spider Cloud's AI Studio allows natural language crawling, reducing need for coding.

Frequently Asked Questions

Nos vs Spider Cloud: which should you choose?

Choose NOS if you need an open-source inference server to deploy and serve multiple PyTorch models (LLMs, vision, etc.) on your own hardware. Choose Spider Cloud if you need a fast, cost-effective web scraping API tailored for AI agents and RAG pipelines. They solve different problems; the decision hinges on whether you need model serving or web data extraction.

Is NOS compatible with non-PyTorch models?

No, NOS only supports PyTorch models. For TensorFlow or ONNX, consider other servers.

Does Spider Cloud require self-hosting?

No, Spider Cloud is a cloud API. There's also an open-source core for self-hosting.

Can I use NOS with cloud GPUs?

Yes, NOS runs on any cloud via Docker and supports NVIDIA GPUs, Inferentia2, and CPUs.

What does Spider Cloud's AI Studio do?

It allows natural language commands to crawl and extract data, e.g., 'Get all product prices'.

Is NOS suitable for high-throughput LLM serving?

It's designed for multi-model serving; for single-model throughput, vLLM may be faster.

Does Spider Cloud offer proxies?

Yes, it includes rotating proxies and automatic retries via its unblocker feature.

Can I use NOS with SkyPilot?

Yes, NOS integrates with SkyPilot to deploy on spot/preemptible instances.

What output formats does Spider Cloud support?

Markdown, HTML, JSON, CSV, XML, plain text, and screenshots.

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Explore each tool further

Nos
View Nos reviewNos alternatives
Spider Cloud
View Spider Cloud reviewSpider Cloud alternatives

Browse these categories

Best AI GPU Cloud & Model Inference toolsBest AI Web Scraping & Search APIs toolsBest AI Browser & Computer-Use Agents tools
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Last reviewed: July 3, 2026