Legacy compact OpenAI reasoning model for cheaper STEM-style tasks than full o1. Prefer o3-mini or o4-mini for new reasoning stacks when available.
Privacy first counting
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Pricing snapshot
USD per 1 million tokens. Verify against the provider source before you lock budget.
| Rate | USD |
|---|---|
| Input / 1M | $1.10 |
| Output / 1M | $4.40 |
Model details
| Detail | Value |
|---|---|
| Provider | OpenAI |
| Context window | 128K |
| Tokenizer | Exact (o200k_base) |
| Last verified | 2026-08-02 |
| API model id | o1-mini |
Notes
Reasoning tokens may bill at output rate; verify on OpenAI docs.