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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 Chat is 100% cheaper than OpenAI: GPT-5 Pro
⚡OpenAI: GPT-5 Pro is 182ms faster than OpenAI: GPT-5 Chat
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-5 Pro is 506% faster
| Spec | OpenAI: GPT-5 Chat | OpenAI: GPT-5 Pro |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $15.00 |
| Output price / 1M tokens | — | $120.00 |
| Context window | 128k tokens | 400k tokens |
| Latency (p50) | 218ms | 36ms |
| Best benchmark score | — | — |
| Open source | No | No |
GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.
GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...
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