Side by side pricing and context for o3-mini and o4-mini. Rates are curated catalog values with last verified dates on each model page.
o3-mini
Entry reasoning tier for lighter hard tasks. Useful when you want reasoning behavior without o3 spend. Still verify output-heavy prompts in the calculator.
Input $1.10 / Output $4.40 per 1M
Context 200K · Exact (o200k_base)
o4-mini
Smaller reasoning model when o3 is too expensive. Use for math, planning, and agent steps where you need chain-of-thought style work on a budget.
Input $1.10 / Output $4.40 per 1M
Context 200K · Exact (o200k_base)
Quick take
- Input rates match on this snapshot.
- Output rates match on this snapshot.
- Both last verified on their model pages (2026-08-02 / 2026-08-02).
Rate table
| Metric | o3-mini | o4-mini |
|---|---|---|
| Input / 1M | $1.10 | $1.10 |
| Output / 1M | $4.40 | $4.40 |
| Cached input / 1M | $0.550 | $0.275 |
| Context | 200K | 200K |
| Tokenizer | Exact (o200k_base) | Exact (o200k_base) |