GPT OSS 120B vs GPT-5-Codex
GPT OSS 120B is cheaper on output tokens, while GPT-5-Codex offers a larger context window. Choose GPT OSS 120B or GPT-5-Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT OSS 120B | GPT-5-Codex |
|---|---|---|
| Provider | OrcaRouter | OrcaRouter |
| Input / 1M tokens | $0.03 | $1.25 |
| Output / 1M tokens | $0.17 | $10.00 |
| Context window | 131K | 400K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Aug 2025 | Sep 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.