As recorded at collection: NVIDIA Build, free API for 100+ models

NVIDIA Build is a website listing AI models, operated by NVIDIA at build.nvidia.com. It offers free API access to more than 100 models, including Moonshot's flagship Kimi K2.5 and the latest K2.6, with no token usage limit or usage time limit. The official Moonshot platform requires a minimum $1 top-up before issuing an API key, so it effectively has no free tier, but NVIDIA Build can be used without this prepayment.

Create a free NVIDIA Developer Program account and visit build.nvidia.com to use the browser-based chat testing interface. You can also issue an API key starting with nvapi- (an authentication string required to use the service) from the same interface. This key is compatible with the OpenAI format, so you can keep using your existing code by changing only the address and key. No credit card information is required.

The request rate is limited to about 40 per minute per model. It is better suited to prototyping or comparing model performance than to large-scale processing. Other usage is not metered separately, so you can test Kimi models without paying Moonshot.