OpenAI: GPT-5.1 Codex vs OpenAI GPT-5 Mini
OpenAI GPT-5 Mini is cheaper on output tokens. Choose OpenAI: GPT-5.1 Codex or OpenAI GPT-5 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | OpenAI: GPT-5.1 Codex | OpenAI GPT-5 Mini |
|---|---|---|
| Provider | Helicone | Helicone |
| Input / 1M tokens | $1.25 | $0.25 |
| Output / 1M tokens | $10.00 | $2.00 |
| Context window | 400K | 400K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Jan 2025 | Jan 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.