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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-4o is 100% cheaper than Z.ai: GLM Flash Latest
⚡Z.ai: GLM Flash Latest is 16ms faster than OpenAI: GPT-4o
📈OpenAI: GPT-4o scores 1270.0 pts higher on benchmarks
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | OpenAI: GPT-4o | Z.ai: GLM Flash Latest |
|---|---|---|
| Provider | openai | ~z-ai |
| Input price / 1M tokens | Free | $0.01 |
| Output price / 1M tokens | — | $0.18 |
| Context window | 128k tokens | 1049k tokens |
| Latency (p50) | 16ms | — |
| Best benchmark score | 1270.0 | — |
| Open source | No | No |
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...
This model always redirects to the latest model in the GLM Flash family.
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