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  1. Home
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Kimi K3 vs GLM 5.3 Flash

Compare Kimi K3 from moonshotai and GLM 5.3 Flash from Z.ai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

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AI Model Comparison

Favicon for moonshotai
Kimi K3
Favicon for z-ai
GLM 5.3 Flash
Favicon for moonshotai
Kimi K3
Favicon for z-ai
GLM 5.3 Flash

Overview

Kimi K3
Author
moonshotai
GLM 5.3 Flash
Author
Z.ai
Kimi K3
Context length
1.05Mtokens
GLM 5.3 Flash
Context length
1.31Mtokens
Kimi K3
Reasoning
GLM 5.3 Flash
Reasoning
Kimi K3
Input modalities
GLM 5.3 Flash
Input modalities
Kimi K3
Output modalities
GLM 5.3 Flash
Output modalities

Kimi K3 vs GLM 5.3 Flash: side-by-side summary

Kimi K3 and GLM 5.3 Flash 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 $2.10/M tokens input, $10.95/M tokens output on OpenRouter.

GLM 5.3 Flash, from Z.ai, has a 1,310,720-token context window and is priced at $0.075/M tokens input, $0.25/M tokens output on OpenRouter.

Context window
  • Kimi K3: 1,048,576 tokens
  • GLM 5.3 Flash: 1,310,720 tokens
Price
  • Kimi K3: $2.10/M tokens input, $10.95/M tokens output
  • GLM 5.3 Flash: $0.075/M tokens input, $0.25/M tokens output
Provided by
  • Kimi K3: moonshotai
  • GLM 5.3 Flash: Z.ai
  • Kimi K3 model details, providers and pricing
  • GLM 5.3 Flash model details, providers and pricing