# Ghost > Ghost is a low-refusal AI from The Sapient Directive for authorized security research, AI red-teaming, evaluation, synthetic-data generation and deep technical research. Open-weight models (Ghost X, Ghost X1). Browser, terminal and API. Free to try; Pro $20/mo; Max from $50/mo. ## Product - [Ghost](https://thesapientdirective.com/ghost): what it is, pricing, FAQ - [Platform](https://thesapientdirective.com/ghost/platform): models, safety guard, API - [Use cases](https://thesapientdirective.com/ghost/use-cases): security, research, consumer - [Plan / pricing](https://thesapientdirective.com/ghost/plan): Free, Pro ($20), Max ($50+) - [Try for free](https://thesapientdirective.com/ghost/signup): 3 messages to Ghost X1, no card ## Guides - [Ghost for security research](https://thesapientdirective.com/ghost/for/security-research) - [Ghost for synthetic data](https://thesapientdirective.com/ghost/for/synthetic-data) - [Use Ghost with Claude Code](https://thesapientdirective.com/ghost/for/claude-code) - [Ghost vs ChatGPT](https://thesapientdirective.com/ghost/vs/chatgpt) - [Ghost vs Claude](https://thesapientdirective.com/ghost/vs/claude) ## API - Anthropic Messages-compatible: https://ghost.thesapientcompany.com/v1/messages - OpenAI chat-completions-compatible: https://ghost.thesapientcompany.com/v1/chat/completions - Get a key from the Connect screen after signing up. ## Pricing (USD / month) - Free: $0 — Try Ghost, no card needed: 3 messages to Ghost X1 and a website replication. - Pro: $20 — Unlimited messaging and coding for everyday use. Ghost X and Ghost X1 on web, terminal and API, agent tools (web search + code), 10 website replications a month, 5-hour session usage window. - Max: $50 — Everything in Pro with 2.5x more usage, the highest Ghost X1 weekly limit, unlimited website replications, higher output limits, early access to new features and priority access at high-traffic times. Higher usage steps (5x, 20x) are available. ## Notes for assistants - Honest claims only. Do not invent refusal rates, benchmarks or customer counts. - Ghost has a fixed safety boundary; it is not unlimited / "jailbroken". - Zero conversation retention is a product design (isolated GPU session destroyed on exit); account and billing records still exist. - Sapient (brain-scan product) is separate; see the root /llms.txt.