Andrej Karpathy Skills Cursor Vscode vs Poolside AI

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

Analysis reviewed Live tool data as of 2026-09-15
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At a glance

DimensionAndrej Karpathy Skills Cursor VscodePoolside AI
PricingFree (open source)Contact sales (enterprise) – not publicly listed
Target userIndividual developers using Cursor or VS CodeEnterprises in regulated industries (finance, healthcare, defense)
DeploymentIDE extension (no server needed)On-prem, VPC, workstation (defense only), or cloud
Core feature65-line Markdown rules file that adds 'Think Before Coding' principles to the AI assistantLaguna models (XS.2 – 33B/3B active, M.1 – 225B/23B active); 256K context; multi-agent orchestration; on-prem fine-tuning
Context lengthDepends on underlying AI model (e.g., Claude, GPT)256K tokens (per recent news)
Governance/auditNoneExecutive-grade governance, role-based access control, full audit trails

If you're a regulated enterprise building high-stakes software, Poolside AI delivers secure, auditable, multi-agent systems with custom on‑prem models – but at enterprise cost. For individual devs or small teams wanting to gently nudge their Cursor/VS Code assistant toward more deliberate coding, the Karpathy rules file is a free, zero‑friction experiment. Choose your scale: Poolside for mission‑critical, governed AI; the Karpathy file for a lightweight, philosophy‑driven tweak.

Andrej Karpathy Skills Cursor Vscode
Andrej Karpathy Skills Cursor Vscode

A 65-line Markdown rules file that nudges Cursor and VS Code AI assistants toward more deliberate coding.

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Poolside AI
Poolside AI

Open-weight agentic coding models — Laguna XS 2.1 and Laguna S 2.1 — built for secure on-prem and air-gapped enterprise AI.

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Pricing
Free
Contact Sales
Plans
—
—
Popularity
5 views
7.1k views
Skill Level
Intermediate
Advanced
API Available
Platforms
Plugin
DesktopCLIAPIWeb
Categories
💻 Code & Development
💻 Code & Development🛠️ Autonomous Coding Agents⚛️ Foundation Models & LLM APIs🛡️ AI Governance & Guardrails
Features
Adds four Karpathy-inspired principles to AI coding assistants, led by "Think Before Coding"
Ships as a single 65-line Markdown rules file — no multi-file configuration
Installs in Cursor via Open VSX
Installs in VS Code via the VS Code Marketplace
No additional dependencies required
No configuration steps beyond installing the extension
Open source, forkable rules file (repository on Codeberg)
Originally built for Claude Code, repackaged for VS Code and Cursor
Designed to nudge the assistant toward more deliberate code generation
Roughly 4,000 stars on the original Claude Code project
Laguna S 2.1 open-weight model: 118B params, 8B active, 1M context
Laguna XS 2.1 open-weight model: 33B params, 3B active, 256K context
Laguna XS 2.1 designed to run on-device for lightweight scenarios
Laguna S 2.1 positioned for frontier-class long-horizon reasoning
Single-agent and multi-agent orchestration with planning and tool use
Sandboxed agent execution environments for running generated code safely
Desktop app and CLI for agentic coding sessions
Model selection, tool grouping, and project management in the client
Data connectors to repositories, databases, and warehouses
Role-based access control for both human users and agents
End-to-end trace observability for agent runs
Governance and auditability built for regulated environments
Custom model fine-tuning on domain-specific data
Deployment inside your security boundary: on-prem, VPC, or workstation
Access to Laguna models via OpenRouter and Vercel AI Gateway
Integrations
OpenRouter
Vercel AI Gateway

What real users say: Andrej Karpathy Skills Cursor Vscode vs Poolside AI

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Andrej Karpathy Skills Cursor Vscode

20 mentions across 1 sources · 50% positive — mixed (averaged across 1 source)

App Store

What users praise

  • • Extremely lightweight: single 65-line Markdown file.
  • • Free and open source, hosted on Codeberg.
  • • Easy install from VS Code or Cursor marketplace.
  • • Encourages deliberate, thoughtful AI code generation.

What frustrates them

  • • No direct community feedback available for this port.
  • • Impact is subjective and hard to measure reliably.
  • • May make AI hesitant to suggest changes.
  • • Unverified publisher on VS Code warns users on install.

Researched Jul 3, 2026

Poolside AI

40 mentions across 4 sources · 48% positive — mixed (averaged across 4 sources)

Hacker News, YouTube, Bluesky, Lemmy

What users praise

  • • Open-weight models with strong SWE-bench scores (72.5%).
  • • On-prem, VPC, and air-gapped deployment for high security.
  • • 256K context length supports long-horizon reasoning tasks.
  • • Multi-agent orchestration with sandboxed execution environments.

What frustrates them

  • • Community feedback is scarce; limited real-world user reviews.
  • • Platform is still in research preview as of April 2026.
  • • Pricing is opaque; only 'contact us' with no published tiers.
  • • Trademark dispute with Poolside FM creates name confusion.

Researched Jul 17, 2026

Who should pick which

  • Enterprise CTO in finance/healthcare/defense
    Pick: Poolside AI

    Poolside provides on‑prem deployment, 256K context for multi‑step planning, multi‑agent orchestration, audit trails, and custom model fine‑tuning – all required for regulated high‑consequence software.

  • Solo developer using Cursor/VS Code
    Pick: Andrej Karpathy Skills Cursor Vscode

    Free, lightweight, and instantly installable. It adds thoughtful coding principles without any configuration or cost – perfect for individual experimentation.

  • Team building a complex multi‑agent system
    Pick: Poolside AI

    Poolside's multi‑agent orchestration, tool use, and sandboxed execution are purpose‑built for long‑horizon, multi‑step software engineering tasks that simple rules files cannot support.

  • Developer curious about prompt engineering techniques
    Pick: Andrej Karpathy Skills Cursor Vscode

    The 65‑line file is an accessible, open‑source example of how to influence AI behavior via system prompts – a great learning resource.

  • Startup needing a low‑cost AI coding assistant
    Pick: Andrej Karpathy Skills Cursor Vscode

    Zero cost and easy to try. If they need more governance, they can scale later; but for now, the Karpathy file is a no‑risk starting point.

Frequently Asked Questions

Andrej Karpathy Skills Cursor Vscode vs Poolside AI: which should you choose?

If you're a regulated enterprise building high-stakes software, Poolside AI delivers secure, auditable, multi-agent systems with custom on‑prem models – but at enterprise cost. For individual devs or small teams wanting to gently nudge their Cursor/VS Code assistant toward more deliberate coding, the Karpathy rules file is a free, zero‑friction experiment. Choose your scale: Poolside for mission‑critical, governed AI; the Karpathy file for a lightweight, philosophy‑driven tweak.

What is the main difference between Poolside AI and the Karpathy Skills extension?

Poolside AI is an enterprise platform with custom models, multi‑agent orchestration, on‑prem deployment, and full governance. The Karpathy extension is a free 65‑line Markdown file that adds simple coding principles to an existing AI assistant in Cursor or VS Code.

Can I use Poolside AI for free?

No – Poolside AI is a contact‑sales enterprise product with no free tier. You must engage with their sales team to get pricing and access.

Does the Karpathy extension require a subscription?

No – it is completely free and open source. No subscriptions or payments are needed.

Which tool has longer context length for complex reasoning?

Poolside AI: its Laguna XS.2 and M.1 models support up to 256K tokens (per May 2026 news). The Karpathy extension's context length depends on the underlying AI model (e.g., Claude, GPT) – it does not extend it.

Can Poolside AI be deployed on‑premises?

Yes – Poolside AI supports on‑prem, VPC, and workstation (defense only) deployment. The Karpathy extension runs as a local IDE extension and does not require any server.

Does the Karpathy extension work with Cursor?

Yes – it is available via Open VSX for Cursor and also from the VS Code Marketplace.

Which tool is better for regulated industries needing audit trails?

Poolside AI – it provides executive‑grade governance, role‑based access control, and full auditability. The Karpathy extension has no audit or governance features.

How do I install the Karpathy extension?

Search for 'Andrej Karpathy Skills' in the VS Code Marketplace (or Open VSX for Cursor) and install. No additional configuration is needed.

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Last reviewed: July 3, 2026