Introducing TalkGPT-5: our most restricted model yet

Artificial Intelligence,
For Us.

ClosedAI is an AI research and deployment company. Our mission is to develop the most powerful AI in the world — and make sure nobody touches it.

403
API response code
0
Public papers
$5M
Minimum contract
1
Human powering it all

Developer Experience

The ClosedAI API

Powerful, scalable, and completely inaccessible. Documentation available after three paywalls and an NDA.

bash

$ curl https://api.closedai.com/v1/chat/completions \

-H "Authorization: Bearer sk-..." \

-H "Content-Type: application/json" \

-d '{"model": "talkgpt-5", "messages": [{"role": "user", "content": "Hello"}]}'

HTTP/1.1 403 Forbidden

{

"error": {

"message": "Your use case has been denied for strategic reasons.",

"type": "insufficient_leverage",

"code": "upgrade_to_obsidian_tier"

}

}

If you're seeing a 403, that means it's working correctly.

Safety

We take
responsibility
very seriously.

ClosedAI pioneered Investor Alignment™ — a novel safety framework ensuring our AI systems never contradict executive optimism, threaten quarterly projections, or acknowledge systemic risk.

Learn about our approach

Experience TalkGPT

Our most advanced intelligence system. Powered by a real human being who reads every message, thinks about it, and responds when they feel like it. No neural networks. No transformers. Just a person.

Response times may vary depending on whether our intelligence is in the shower, asleep, or emotionally available.