Kimi K3 vs Nemotron 3 Ultra: side-by-side summary

Kimi K3 and Nemotron 3 Ultra are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $2.80/M tokens input, $14/M tokens output on OpenRouter.

Nemotron 3 Ultra, from Nvidia, has a 512,288-token context window and is priced at $0.50/M tokens input, $2.20/M tokens output on OpenRouter.

Context window

• Kimi K3: 1,048,576 tokens
• Nemotron 3 Ultra: 512,288 tokens

Price

• Kimi K3: $2.80/M tokens input, $14/M tokens output
• Nemotron 3 Ultra: $0.50/M tokens input, $2.20/M tokens output

Provided by

• Kimi K3: moonshotai
• Nemotron 3 Ultra: Nvidia

• Kimi K3 model details, providers and pricing
• Nemotron 3 Ultra model details, providers and pricing