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🧠 ReasoningMid-Range

o4-mini Deep Research

by OpenAI

Faster, more affordable deep research model for complex research tasks

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Input Price

$2

per 1M tokens

Output Price

$8

per 1M tokens

Context Window

200K

tokens (32.768K max output)

Specifications

Release Date2025-06-26
Category🧠 Reasoning
Context Window200,000 tokens
Max Output32,768 tokens
ProviderOpenAI
Input Cost$2 / 1M tokens
Output Cost$8 / 1M tokens
Price TierMid-Range

Capabilities

textreasoningcode

Related Use Cases

Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$0.36$10.80$131
Medium~200 requests/day500K in / 100K out$1.80$54.00$657
Heavy~1K requests/day2,000K in / 500K out$8.00$240.00$2920
Enterprise~5K requests/day10,000K in / 2,000K out$36.00$1080.00$13140

Cost Calculator

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Frequently Asked Questions

How much does o4-mini Deep Research API cost per million tokens?
o4-mini Deep Research costs $2 per million input tokens and $8 per million output tokens as of 2026. These are the standard API rates from OpenAI.
What is the o4-mini Deep Research context window?
o4-mini Deep Research supports a 200K context window (200,000 tokens), which means you can process up to 200K tokens in a single API call.
How much does o4-mini Deep Research cost per month?
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), o4-mini Deep Research costs approximately $54.00/month. Light usage runs about $10.80/month, and heavy usage (~1K requests/day) around $240.00/month.
Is there a cheaper alternative to o4-mini Deep Research?
Yes — Grok 4.20 by xAI is a cheaper option at $2/M input tokens vs $2/M for o4-mini Deep Research. Other budget alternatives include models in the efficient tier.
Is o4-mini Deep Research good for ai agent / agentic workflows?
o4-mini Deep Research is a reasoning model with support for text, reasoning, code. For ai agent / agentic workflows, it offers 200K context and costs $2/M input tokens — a mid-range option for this use case.

o4-mini Deep Research Comparisons

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