Models / nemotron-3-ultra-550b-a55b-uncensored

Nemotron 3 Ultra 550B Uncensored by API.

Uncensored by NVIDIA, on UncensoredLLM as nemotron-3-ultra-550b-a55b-uncensored.

Get a key

Price per million tokens

Input
$1.125
Cached input
$0.282
Output
$6.60
Context window
262,144 tokens
Max output
65,536 tokens
Wire formats
openai
Daily check
Not checked yet
How the check works
As of
2026-10-24

First request

curl
1curl https://api.uncensoredllm.ai/v1/chat/completions \
2 -H "Authorization: Bearer sk-ullm-live-…" \
3 -H "Content-Type: application/json" \
4 -d '{"model": "nemotron-3-ultra-550b-a55b-uncensored", "messages": [{"role": "user", "content": "Hello"}]}'

Base URL https://api.uncensoredllm.ai/v1. The key comes from the console; prices settle per token.

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What this build is

Nemotron 3 Ultra 550B Uncensored is an uncensored build: it answers without the safety refusals of the stock model, served at full precision on GPU.

Every request is routed to the build’s live route and settled to the token at the prices above. The daily real-model check sends a fixed prompt to every model and records whether the answer still matches; this model’s verdict today is “Not checked yet”.

Use it from the OpenAI, Anthropic or Gemini SDK, from SillyTavern or Janitor, or from a coding agent. Keys and top-ups live in the console.