Phi 4 vs Kimi K3: side-by-side summary

Phi 4 and Kimi K3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Phi 4, from Microsoft, has a 16,384-token context window and is priced at $0.07/M tokens input, $0.14/M tokens output on OpenRouter.

Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $2.55/M tokens input, $12.75/M tokens output on OpenRouter.

Context window

• Phi 4: 16,384 tokens
• Kimi K3: 1,048,576 tokens

Price

• Phi 4: $0.07/M tokens input, $0.14/M tokens output
• Kimi K3: $2.55/M tokens input, $12.75/M tokens output

Provided by

• Phi 4: Microsoft
• Kimi K3: moonshotai

• Phi 4 model details, providers and pricing
• Kimi K3 model details, providers and pricing