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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.
💰OpenAI: GPT-5.2-Codex is 100% cheaper than Z.ai: GLM Flash Latest
⚡Z.ai: GLM Flash Latest is 29ms faster than OpenAI: GPT-5.2-Codex
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | OpenAI: GPT-5.2-Codex | Z.ai: GLM Flash Latest |
|---|---|---|
| Provider | openai | ~z-ai |
| Input price / 1M tokens | Free | $0.01 |
| Output price / 1M tokens | — | $0.18 |
| Context window | 400k tokens | 1049k tokens |
| Latency (p50) | 29ms | — |
| Best benchmark score | — | — |
| Open source | No | No |
GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
This model always redirects to the latest model in the GLM Flash family.
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