Nova 2 Lite vs Grok 4.5: side-by-side summary

Nova 2 Lite and Grok 4.5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Nova 2 Lite, from Amazon, has a 1,000,000-token context window and is priced at $0.30/M tokens input, $2.50/M tokens output 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

• Nova 2 Lite: 1,000,000 tokens
• Grok 4.5: 500,000 tokens

Price

• Nova 2 Lite: $0.30/M tokens input, $2.50/M tokens output
• Grok 4.5: $2/M tokens input, $6/M tokens output

Provided by

• Nova 2 Lite: Amazon
• Grok 4.5: SpaceXAI

• Nova 2 Lite model details, providers and pricing
• Grok 4.5 model details, providers and pricing