Mistral Small 4 vs GLM 5.3 Flash: side-by-side summary

Mistral Small 4 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.

Mistral Small 4, from Mistral AI, has a 262,144-token context window and is priced at $0.15/M tokens input, $0.60/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

• Mistral Small 4: 262,144 tokens
• GLM 5.3 Flash: 1,310,720 tokens

Price

• Mistral Small 4: $0.15/M tokens input, $0.60/M tokens output
• GLM 5.3 Flash: $0.075/M tokens input, $0.25/M tokens output

Provided by

• Mistral Small 4: Mistral AI
• GLM 5.3 Flash: Z.ai

• Mistral Small 4 model details, providers and pricing
• GLM 5.3 Flash model details, providers and pricing