o4-mini Pricing — Token Costs & API Calculator

Official API pricing for o4-mini by OpenAI, with context window, tokenizer details, and a plain-English cost estimate.

Pricing Details

Attribute	Value
Provider	OpenAI
Input cost (per 1M tokens)	$1.10
Output cost (per 1M tokens)	$4.40
Context caching	Not supported
Batch API discount	50% off
Context window	200k tokens
Tokenizer	o200k_base (GPT-4o / o-series)
Thinking / reasoning	Yes — billed as additional output tokens (est. 3× multiplier)

ⓘ Introductory pricing: Deprecated by OpenAI. API access shuts down 2026-10-23; calls will error after that date. Prices are no longer listed on OpenAI's pricing page and could not be re-verified from a vendor source.

Cost example

1,000 requests × 500 input tokens × 200 output tokens costs $1.43/month with o4-mini at OpenAI's published rates.

Based on $1.1/1M input tokens and $4.4/1M output tokens.

Calculate your exact costs with o4-mini

o4-mini Pricing — Token Costs & API Calculator

Pricing Details

Cost example

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