Granite 4.2 8B vs GLM 5.3 Flash: side-by-side summary

Granite 4.2 8B 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.

Granite 4.2 8B, from ibm-granite, has a 131,072-token context window and is priced at $0.10/M tokens input, $0.15/M tokens output on OpenRouter.

GLM 5.3 Flash, from Z.ai, has a 1,310,720-token context window and is priced at $0.07125/M tokens input, $0.2375/M tokens output on OpenRouter.

Context window

• Granite 4.2 8B: 131,072 tokens
• GLM 5.3 Flash: 1,310,720 tokens

Price

• Granite 4.2 8B: $0.10/M tokens input, $0.15/M tokens output
• GLM 5.3 Flash: $0.07125/M tokens input, $0.2375/M tokens output

Provided by

• Granite 4.2 8B: ibm-granite
• GLM 5.3 Flash: Z.ai

• Granite 4.2 8B model details, providers and pricing
• GLM 5.3 Flash model details, providers and pricing