GLM 5.2 vs Sonar Pro Search: side-by-side summary

GLM 5.2 and Sonar Pro Search are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

GLM 5.2, from Z.ai, has a 1,048,576-token context window and is priced at $0.308/M tokens input, $0.968/M tokens output on OpenRouter.

Sonar Pro Search, from Perplexity, has a 200,000-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.

Context window

• GLM 5.2: 1,048,576 tokens
• Sonar Pro Search: 200,000 tokens

Price

• GLM 5.2: $0.308/M tokens input, $0.968/M tokens output
• Sonar Pro Search: $3/M tokens input, $15/M tokens output

Provided by

• GLM 5.2: Z.ai
• Sonar Pro Search: Perplexity

• GLM 5.2 model details, providers and pricing
• Sonar Pro Search model details, providers and pricing