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Nemotron Ultra 253B

nvidia/llama-3.1-nemotron-ultra-253b

4 credits / request
Compare with…Added 2026
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Nvidia's massive 253B Nemotron Ultra for frontier reasoning.

API Usage

1curl -X POST https://api.vincony.com/v1/chat/completions \
2  -H "Authorization: Bearer YOUR_API_KEY" \
3  -H "Content-Type: application/json" \
4  -d '{
5    "model": "nvidia/llama-3.1-nemotron-ultra-253b",
6    "messages": [
7      { "role": "user", "content": "Hello, Nemotron Ultra 253B!" }
8    ]
9  }'

Replace YOUR_API_KEY with your Vincony API key. OpenAI-compatible endpoint — works with any OpenAI SDK.

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