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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 Codex is 96% cheaper than OpenAI: GPT-4 (older v0314)
⚡OpenAI: GPT-4 (older v0314) is 36ms faster than OpenAI: GPT-5 Codex
📈OpenAI: GPT-4 (older v0314) scores 1270.0 pts higher on benchmarks
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-5 Codex is 2300% cheaper
| Spec | OpenAI: GPT-4 (older v0314) | OpenAI: GPT-5 Codex |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | $30.00 | $1.25 |
| Output price / 1M tokens | $60.00 | $10.00 |
| Context window | 8k tokens | 400k tokens |
| Latency (p50) | — | 36ms |
| Best benchmark score | 1270.0 | — |
| Open source | No | No |
GPT-4-0314 is the first version of GPT-4 released, with a context length of 8,192 tokens, and was supported until June 14. Training data: up to Sep 2021.
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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