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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.
⚡gpt-4o-mini-audio-preview-2024-12-17 is 17ms faster than OpenAI: GPT-5.1 Chat
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | gpt-4o-mini-audio-preview-2024-12-17 | OpenAI: GPT-5.1 Chat |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | Free |
| Output price / 1M tokens | — | — |
| Context window | — | 128k tokens |
| Latency (p50) | — | 17ms |
| Best benchmark score | — | — |
| Open source | No | No |
This lightweight, multimodal model excels at processing text, images, and audio inputs with fast response times and lower costs, making it ideal for developers and organizations building real-time conversational applications, content analysis tools, and interactive voice assistants where efficiency and affordability are priorities.
GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...
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