o1 vs o3 Deep Research

Compare OpenAI and OpenAI AI models

OpenAI

o3 Deep Research

Try OpenAI →

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

o1

Per Request:$0.045

Daily:$4.50

Monthly:$135.00

Yearly:$1,642.50

o3 Deep Research

Per Request:$0.03

Daily:$3.00

Monthly:$90.00

Yearly:$1,095.00

Cost Differences

$0.015

Per Request

$1.50

Daily

$45.00

Monthly

$547.50

Yearly

o3 Deep Research costs less than o1

Feature Comparison

Feature	o1	o3 Deep Research
Provider	OpenAI	OpenAI
Input Price	$15.00/1M tokens	$10.00/1M tokens
Output Price	$60.00/1M tokens	$40.00/1M tokens
Context Window	200,000 tokens	200,000 tokens
Max Output	65,536 tokens	32,768 tokens
Category	reasoning	reasoning
Capabilities	textreasoning	textreasoningvisioncode
Release Date	9/12/2024	6/26/2025

o1 vs o3 Deep Research: Which Should You Choose?

Choosing between o1 and o3 Deep Research depends on your priorities: cost efficiency, context length, or raw capability. o3 Deep Research is the more affordable option at $10.00/1M input tokens — 33% cheaper than o1.

Both models are in the reasoning category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: o3 Deep Research would save you roughly $4,500.00/month compared to o1. For startups and indie developers, that difference can be significant.

Output costs matter too. o1 charges $60.00/1M output tokens vs $40.00 for o3 Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o3 Deep Research has the edge here at $40.00/1M output tokens.

Multimodal capabilities: o3 Deep Research supports vision (image inputs) while o1 is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose o1 when:

• You need longer outputs (up to 65,536 tokens)
• You're already using OpenAI's API ecosystem

Choose o3 Deep Research when:

• Budget is a primary concern
• You need more capabilities (vision, code)
• You're already using OpenAI's API ecosystem

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

o1 (OpenAI)

Cost Calculator

Provider

Model

Input Tokens

Output Tokens

Requests/Day

Select a provider and model to see costs

o3 Deep Research (OpenAI)

Cost Calculator

Provider

Model

Input Tokens

Output Tokens

Requests/Day

Select a provider and model to see costs

Start using o1 today

Start using o3 Deep Research today

Frequently Asked Questions

Which is cheaper, o1 or o3 Deep Research?▼

o3 Deep Research is cheaper for input tokens at $10.00 per million tokens vs $15.00 for o1 — that's 33% savings on input costs.

What is the context window difference between o1 and o3 Deep Research?▼

o1 supports 200,000 tokens while o3 Deep Research supports 200,000 tokens — a difference of 0 tokens in favor of o1.

Which model is better for AI Chatbot?▼

Both models support text. For ai chatbot, o3 Deep Research is the lower-cost option, while o1 offers a larger context window (200,000 vs 200,000 tokens). Choose o3 Deep Research for budget sensitivity or o1 for longer context tasks.

Which model has better overall pricing for heavy usage?▼

At 100 requests/day with 1,000 input and 500 output tokens each, o1 costs about $135.00/month and o3 Deep Research costs about $90.00/month. Overall, o3 Deep Research has lower combined input + output rates ($10.00 in, $40.00 out) vs o1.