Caveman vs PlugThis: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Caveman and PlugThis — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Caveman

Julius Brussee

Freemium

Efficiency stack that caches, compresses, and routes AI traffic to cut LLM output tokens by up to 65% with verified savings.

Caveman Skill: MIT-licensed Claude Code skill that teaches 30+ agents (Claude Code, Codex, Cursor, and more) to answer in a compressed dialect, cutting output tokens ~65% while keeping code and errors byte-exact.
Local Proxy Wrap: One command (`caveman claude`) launches your agent with recoverable local context compression — no account required, BYOK, engine stores original bytes before lossy replacement.
Recoverable Context Compression: Engine recognizes logs, JSON, code, diffs, and tables, then sends smaller eligible context to the model and can restore the originals on demand.
Agent SDK: `@caveman-ai/agent` TypeScript SDK adds catalog-price guards, per-request token bills, and eval-gated context plans to production agents.
Cave Score & Ledger: Inferred local savings score and a verified 'causal-cache' ledger on paid tiers so you can prove cut tokens and cut dollars.
Managed Cloud Gateway: Point traffic at one URL and caching / compression / routing run eval-gated on autopilot, with a synced savings dashboard.
Browser Extension: Ships for ChatGPT, Claude, and Gemini so end-user chats benefit from the same output compression without any code changes.
Enterprise & OEM: Same stack self-hosted in your cloud or datacenter with signed savings receipts, zero data retention, and OEM embed options.

LLM Bill Reduction: Cap OpenAI, Anthropic, or Google spend without changing model choice by cutting output tokens per response across your agent fleet.
Coding Agent Efficiency: Install the skill to make Claude Code, Codex, Cursor, and other CLI agents produce terse, byte-exact answers so long tasks fit in context.
Provider Wrap for Production Agents: Use the SDK to add per-call token bills, catalog-price guards, and eval-gated context plans to LangChain / custom agents.
Central Cost Gateway: Point every agent in the org at Caveman Cloud so caching and routing are enforced from one URL with a shared dashboard.
On-Prem or OEM Embed: Ship the Enterprise stack inside a regulated network or embed it in your own AI product with signed savings receipts and zero data retention.
Chat-App Compression: Install the browser extension for ChatGPT, Claude, or Gemini to keep casual chats short, cheaper, and inside the context window.

Paid

AI Chrome extension builder — describe what you want in plain English and get a working Manifest V3 extension with real backend in under two minutes.

Plain-English Extension Generation: Describe the extension you want and PlugThis produces a complete Manifest V3 project — popup, scripts and backend — usually within 2 minutes.
Real Supabase Backends: Connect your Supabase account and PlugThis writes Postgres tables, Auth flows and Edge Function logic instead of just wireframing a UI.
Bring-Your-Own LLM Key: Plug in an OpenAI, Anthropic or Gemini API key and PlugThis wires up LLM-powered features such as summarization, translation and reply generation.
Full Source Ownership: Users download a zip of the complete source and can publish to the Chrome Web Store, sell, or modify it — no vendor lock-in or runtime dependency.
Iterative Chat Refinement: Unlimited chats per extension to build, debug and polish before shipping.
Chrome Web Store Ready: Output includes assets and Manifest V3 configuration required for Web Store submission.
Idea Templates: Starter templates (Pomodoro, page highlighter, dark mode, CSS inspector, exercise reminder) for quick jump-starts.

SaaS Extension Companions: Founders ship a Chrome extension that extends their product without a dedicated engineering team.
Internal Team Tools: Build a company-specific extension for research, HR onboarding or CRM shortcuts in a single afternoon.
Indie Developer Products: Non-technical founders build and sell utility extensions on the Chrome Web Store.
AI Feature Prototypes: Wire a Chrome extension to OpenAI/Anthropic/Gemini keys to prototype an AI writing, translation or reply tool.
Legacy Tool Replacements: Rebuild a discontinued or clunky extension by describing the desired behavior.
Learning by Example: Use PlugThis output as a working starting point to learn Manifest V3 architecture.