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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.
💰Z.ai: GLM Flash Latest is 99% cheaper than OpenAI: GPT-6.1 Terra Pro
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
Z.ai: GLM Flash Latest is 11264% cheaper
| Spec | OpenAI: GPT-6.1 Terra Pro | Z.ai: GLM Flash Latest |
|---|---|---|
| Provider | openai | ~z-ai |
| Input price / 1M tokens | $1.00 | $0.01 |
| Output price / 1M tokens | $5.00 | $0.18 |
| Context window | 1050k tokens | 1049k tokens |
| Latency (p50) | — | — |
| Best benchmark score | — | — |
| Open source | No | No |
GPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
This model always redirects to the latest model in the GLM Flash family.
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