ERNIE 4.5 21B A3B Thinking vs GLM 5.1: side-by-side summary

ERNIE 4.5 21B A3B Thinking and GLM 5.1 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

ERNIE 4.5 21B A3B Thinking, from baidu, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.

GLM 5.1, from Z.ai, has a 204,800-token context window and is priced at $0.896/M tokens input, $2.816/M tokens output on OpenRouter.

Context window

• ERNIE 4.5 21B A3B Thinking: 131,072 tokens
• GLM 5.1: 204,800 tokens

Price

• ERNIE 4.5 21B A3B Thinking: Pricing varies by provider
• GLM 5.1: $0.896/M tokens input, $2.816/M tokens output

Provided by

• ERNIE 4.5 21B A3B Thinking: baidu
• GLM 5.1: Z.ai

• ERNIE 4.5 21B A3B Thinking model details, providers and pricing
• GLM 5.1 model details, providers and pricing