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🧠 ReasoningPremium

o3 Deep Research

by OpenAI

Powerful deep research model built on o3 for complex multi-step research tasks

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Input Price

$10

per 1M tokens

Output Price

$40

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$10 / 1M tokens
Output Cost$40 / 1M tokens
Price TierPremium

Capabilities

textreasoningvisioncode

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Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$1.80$54.00$657
Medium~200 requests/day500K in / 100K out$9.00$270.00$3285
Heavy~1K requests/day2,000K in / 500K out$40.00$1200.00$14600
Enterprise~5K requests/day10,000K in / 2,000K out$180.00$5400.00$65700

Cost Calculator

Alternatives to o3 Deep Research

💰 Cheaper Options

GPT-4 TurboOpenAI
20% cheaper
$10/M in · $30/M out
GPT-5.5OpenAI
30% cheaper
$5/M in · $30/M out
Claude Opus 4.5Anthropic
40% cheaper
$5/M in · $25/M out
Claude Opus 4.6Anthropic
40% cheaper
$5/M in · $25/M out

🚀 More Powerful

o1OpenAI
50% more
$15/M in · $60/M out
Claude Opus 4Anthropic
80% more
$15/M in · $75/M out
Claude Opus 4.1Anthropic
80% more
$15/M in · $75/M out
Claude 3 OpusAnthropic
80% more
$15/M in · $75/M out

Frequently Asked Questions

How much does o3 Deep Research API cost per million tokens?▼
o3 Deep Research costs $10 per million input tokens and $40 per million output tokens as of 2026. These are the standard API rates from OpenAI.
What is the o3 Deep Research context window?▼
o3 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 o3 Deep Research cost per month?▼
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), o3 Deep Research costs approximately $270.00/month. Light usage runs about $54.00/month, and heavy usage (~1K requests/day) around $1200.00/month.
Is there a cheaper alternative to o3 Deep Research?▼
Yes — GPT-4 Turbo by OpenAI is a cheaper option at $10/M input tokens vs $10/M for o3 Deep Research. Other budget alternatives include models in the efficient tier.
Is o3 Deep Research good for ai agent / agentic workflows?▼
o3 Deep Research is a reasoning model with support for text, reasoning, vision. For ai agent / agentic workflows, it offers 200K context and costs $10/M input tokens — a premium option for this use case.

o3 Deep Research Comparisons

codex mini latest vs o3 deep researcho3 deep research vs o4 mini deep researchgpt 5 2 vs o3 deep researchgpt 5 2 pro vs o3 deep researchgpt 5 5 vs o3 deep researchgpt 5 5 pro vs o3 deep researchgpt 5 4 pro vs o3 deep researchgpt 5 4 vs o3 deep research

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