Nemotron 3.5 Content Safety vs Grok 4.5: side-by-side summary

Nemotron 3.5 Content Safety and Grok 4.5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Nemotron 3.5 Content Safety, from Nvidia, has a 128,000-token context window and is priced by the provider serving it on OpenRouter.

Grok 4.5, from SpaceXAI, has a 500,000-token context window and is priced at $2/M tokens input, $6/M tokens output on OpenRouter.

Context window

• Nemotron 3.5 Content Safety: 128,000 tokens
• Grok 4.5: 500,000 tokens

Price

• Nemotron 3.5 Content Safety: Pricing varies by provider
• Grok 4.5: $2/M tokens input, $6/M tokens output

Provided by

• Nemotron 3.5 Content Safety: Nvidia
• Grok 4.5: SpaceXAI

• Nemotron 3.5 Content Safety model details, providers and pricing
• Grok 4.5 model details, providers and pricing