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Sonar Pro Search vs GLM 5.3 Flash

Compare Sonar Pro Search from Perplexity 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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Sonar Pro Search vs GLM 5.3 Flash: side-by-side summary

Sonar Pro Search 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.

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.

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
  • Sonar Pro Search: 200,000 tokens
  • GLM 5.3 Flash: 1,310,720 tokens
Price
  • Sonar Pro Search: $3/M tokens input, $15/M tokens output
  • GLM 5.3 Flash: $0.075/M tokens input, $0.25/M tokens output
Provided by
  • Sonar Pro Search: Perplexity
  • GLM 5.3 Flash: Z.ai
  • Sonar Pro Search model details, providers and pricing
  • GLM 5.3 Flash model details, providers and pricing
Favicon for perplexity
Sonar Pro Search
Favicon for z-ai
GLM 5.3 Flash
Favicon for perplexity
Sonar Pro Search
Favicon for z-ai
GLM 5.3 Flash

Overview

Sonar Pro Search
Author
Perplexity
GLM 5.3 Flash
Author
Z.ai
Sonar Pro Search
Context length
200Ktokens
GLM 5.3 Flash
Context length
1.31Mtokens
Sonar Pro Search
Reasoning
GLM 5.3 Flash
Reasoning
Sonar Pro Search
Input modalities
GLM 5.3 Flash
Input modalities
Sonar Pro Search
Output modalities
GLM 5.3 Flash
Output modalities