o4-mini Pricing
OpenAI · o-series · Live
o4-mini costs $0.55 per million input tokens and $2.2 per million output tokens on the OpenAI API. It supports a 200,000-token context window and up to 100,000 output tokens per request. The model supports extended reasoning, image input, tool use. Pricing verified September 14, 2026.
o4-mini API pricing
o4-mini API pricing is $0.55 per million input tokens and $2.2 per million output tokens, verified September 14, 2026.
- Input (per 1M tokens)
- $0.55
- Output (per 1M tokens)
- $2.2
- Context window
- 200,000 tokens
- Max output
- 100,000 tokens
Capabilities
o4-mini supports extended reasoning, image input, tool use.
Price history
See full o4-mini price historyo4-mini API pricing has changed 1 time on record, most recently on August 24, 2026 (decrease).
- August 24, 2026: Decrease — input $1.1 → $0.55/M (−$0.55) — output $4.4 → $2.2/M (−$2.2)
Frequently asked questions
Short answers to the most common questions about o4-mini pricing, limits, and capabilities.
Notes
Long Context flag corrected to false 2026-07-28 — o4-mini has 200K token context, not 1M+. [2026-08-24] PRICE CUT — Input fell $1.10 → $0.55 and Output fell $4.40 → $2.20 per million tokens (50% cut on both sides). Corroborated by cloudzero.com "OpenAI API pricing in 2026: every model after the July price cuts", pricepertoken.com o4-mini page ("cheapest input price has fallen 50%, from $1.10 to $0.550 over the past ~90 days"), and metacto.com. Cut appears tied to OpenAI's July 30, 2026 price reductions.