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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-5.1-Codex-Mini is 100% cheaper than OpenAI: GPT-4o Search Preview
⚡OpenAI: GPT-5.1-Codex-Mini is 25ms faster than OpenAI: GPT-4o Search Preview
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-5.1-Codex-Mini is 125% faster
| Spec | OpenAI: GPT-4o Search Preview | OpenAI: GPT-5.1-Codex-Mini |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | $2.50 | Free |
| Output price / 1M tokens | $10.00 | — |
| Context window | 128k tokens | 400k tokens |
| Latency (p50) | 45ms | 20ms |
| Best benchmark score | — | — |
| Open source | No | No |
GPT-4o Search Previewis a specialized model for web search in Chat Completions. It is trained to understand and execute web search queries.
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
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