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Side-by-side comparison of API pricing, context window, latency, and benchmark performance. Data refreshed daily from provider APIs and ModelStop's own latency probes.
💰Perplexity: Sonar Reasoning Pro is 100% cheaper than Z.ai: GLM Latest
⚡Z.ai: GLM Latest is 27ms faster than Perplexity: Sonar Reasoning Pro
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | Perplexity: Sonar Reasoning Pro | Z.ai: GLM Latest |
|---|---|---|
| Provider | perplexity | ~z-ai |
| Input price / 1M tokens | Free | $0.07 |
| Output price / 1M tokens | — | $1.40 |
| Context window | 128k tokens | 1049k tokens |
| Latency (p50) | 27ms | — |
| Best benchmark score | — | — |
| Open source | No | No |
Note: Sonar Pro pricing includes Perplexity search pricing. See [details here](https://docs.perplexity.ai/guides/pricing#detailed-pricing-breakdown-for-sonar-reasoning-pro-and-sonar-pro) Sonar Reasoning Pro is a premier reasoning model powered by DeepSeek R1 with Chain of Thought (CoT). Designed for...
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