OpenRouter
OpenRouter routes more than 600 models through one API key.
- Model gateway (router)
- OpenAI compatible
Model / inference API
NVIDIA's API platform at build.nvidia.com hosts models as NIM microservices on its DGX Cloud for trying out, and it suits developers who want to test Nemotron and other models before deciding where to run them.
Checked 2026-11-05
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NVIDIA's API platform at build.nvidia.com hosts models as NIM microservices on its DGX Cloud for trying out, and it suits developers who want to test Nemotron and other models before deciding where to run them. The home page advertises free inference with models such as Nemotron 3 Ultra and DeepSeek V4.1 Flash. The quickstart says you get a key from a model page and become a member of the NVIDIA Developer Program. The catch is that the pages we read give no usage caps, credit rules, per-token prices or production terms, so we state none. We have seen secondary reports that the free tier is for trial use and that production needs an NVIDIA AI Enterprise licence, but we did not confirm that from an NVIDIA page and do not rely on it. NVIDIA's privacy policy does not mention its hosted APIs. It says data is generally stored in the United States, and it does not say API prompts train models. Read the API terms before sending private code. Figures come from the build.nvidia.com home page, its quickstart and the NVIDIA privacy policy. We have not run it ourselves. We would use it to test Nemotron models for free, then price a paid host.
OpenRouter routes more than 600 models through one API key.
Together AI serves open models by the token and also rents GPUs.
DeepInfra hosts open and some closed models behind an API, billed per token.
Nemotron 3 Ultra is NVIDIA's open-weights model, released 2026-06-04, and its listing name shows 550 billion total parameters with 55 billion active.
NVIDIA, 262K context, $0.60 in / 1M
Nemotron 3.5 Super VL is NVIDIA's open multimodal mixture-of-experts model, with 12B active parameters out of 120B total.
NVIDIA, 1M context, $0.15 in / 1M
Checked 2026-10-31
Checked 2026-10-31
Checked 2026-10-31
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