Kimi K3 vs GLM 5.1: side-by-side summary

Kimi K3 and GLM 5.1 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.

GLM 5.1, from Z.ai, has a 204,800-token context window and is priced at $0.966/M tokens input, $3.036/M tokens output on OpenRouter.

Context window

• Kimi K3: 1,048,576 tokens
• GLM 5.1: 204,800 tokens

Price

• Kimi K3: $2.80/M tokens input, $14/M tokens output
• GLM 5.1: $0.966/M tokens input, $3.036/M tokens output

Provided by

• Kimi K3: moonshotai
• GLM 5.1: Z.ai

• Kimi K3 model details, providers and pricing
• GLM 5.1 model details, providers and pricing