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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: o3 Pro is 100% cheaper than Z.ai: GLM Flash Latest
⚡Z.ai: GLM Flash Latest is 15ms faster than OpenAI: o3 Pro
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | OpenAI: o3 Pro | Z.ai: GLM Flash Latest |
|---|---|---|
| Provider | openai | ~z-ai |
| Input price / 1M tokens | Free | $0.01 |
| Output price / 1M tokens | — | $0.18 |
| Context window | 200k tokens | 1049k tokens |
| Latency (p50) | 15ms | — |
| Best benchmark score | — | — |
| Open source | No | No |
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...
This model always redirects to the latest model in the GLM Flash family.
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