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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-3.5 Turbo 16k is 100% cheaper than OpenAI: GPT-5 Codex
⚡OpenAI: GPT-3.5 Turbo 16k is 14ms faster than OpenAI: GPT-5 Codex
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-3.5 Turbo 16k is 64% faster
| Spec | OpenAI: GPT-3.5 Turbo 16k | OpenAI: GPT-5 Codex |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $1.25 |
| Output price / 1M tokens | — | $10.00 |
| Context window | 16k tokens | 400k tokens |
| Latency (p50) | 22ms | 36ms |
| Best benchmark score | — | — |
| Open source | No | No |
This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up...
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
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