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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-4.1 is 100% cheaper than OpenAI: GPT-3.5 Turbo Instruct
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-3.5 Turbo Instruct is 6% faster
| Spec | OpenAI: GPT-3.5 Turbo Instruct | OpenAI: GPT-4.1 |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | $1.50 | Free |
| Output price / 1M tokens | $2.00 | — |
| Context window | 4k tokens | 1048k tokens |
| Latency (p50) | 17ms | 18ms |
| Best benchmark score | — | — |
| Open source | No | No |
This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021.
GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...
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