o4 Mini

language modelOpenAI

OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining strong multimodal and agentic capabilities. It supports tool use and demonstrates competitive reasoning...

Key facts

Made byOpenAI
Typelanguage model
ReleasedApril 16, 2025
Reads at once200,000 tokens
Price (API, per million tokens)$1.1 in · $4.4 out
Input → outputimage, text, file → text

Questions about o4 Mini

Who makes o4 Mini?

o4 Mini is made by OpenAI.

When was o4 Mini released?

We first saw o4 Mini listed on April 16, 2025.

How much does o4 Mini cost?

Through OpenRouter it costs $1.1 per million input tokens and $4.4 per million output tokens. Prices change, so check the provider before you build on it.

How much text can o4 Mini read at once?

Up to 200,000 tokens, roughly 150K words.

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