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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-4
⚡OpenAI: GPT-4 is 126ms faster than OpenAI: GPT-5 Chat
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-4 is 137% faster
| Spec | OpenAI: GPT-4 | OpenAI: GPT-5 Chat |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | $30.00 | Free |
| Output price / 1M tokens | $60.00 | — |
| Context window | 8k tokens | 128k tokens |
| Latency (p50) | 92ms | 218ms |
| Best benchmark score | — | — |
| Open source | No | No |
OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...
GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.
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