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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 Nano is 6ms faster than gpt-5-chat-latest
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-5 Nano is 19% faster
| Spec | gpt-5-chat-latest | OpenAI: GPT-5 Nano |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | Free |
| Output price / 1M tokens | — | — |
| Context window | — | 400k tokens |
| Latency (p50) | 37ms | 31ms |
| Best benchmark score | — | — |
| Open source | No | No |
I don't have reliable information about a model called "gpt-5-chat-latest" by OpenAI. As of my last update in April 2024, OpenAI's latest publicly available model is GPT-4, and I cannot provide a factual description of a model I'm not certain exists or whose specifications I'm unfamiliar with.
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
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