o1 Pro vs o3-pro

Compare OpenAI and OpenAI AI models

OpenAI

o1 Pro

OpenAI

o3-pro

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

o1 Pro

Per Request:$0.45

Daily:$45.00

Monthly:$1,350.00

Yearly:$16,425.00

o3-pro

Per Request:$0.06

Daily:$6.00

Monthly:$180.00

Yearly:$2,190.00

Cost Differences

$0.39

Per Request

$39.00

Daily

$1,170.00

Monthly

$14,235.00

Yearly

o3-pro costs less than o1 Pro

Feature Comparison

Feature	o1 Pro	o3-pro
Provider	OpenAI	OpenAI
Input Price	$150.00/1M tokens	$20.00/1M tokens
Output Price	$600.00/1M tokens	$80.00/1M tokens
Context Window	200,000 tokens	1,000,000 tokens
Max Output	100,000 tokens	131,072 tokens
Category	flagship	reasoning
Capabilities	textvisioncodereasoning	textreasoningcode
Release Date	12/17/2024	6/10/2025

o1 Pro vs o3-pro: Which Should You Choose?

Choosing between o1 Pro and o3-pro depends on your priorities: cost efficiency, context length, or raw capability. o3-pro is the more affordable option at $20.00/1M input tokens — 87% cheaper than o1 Pro. Meanwhile, o3-pro offers a significantly larger context window at 1,000,000 tokens vs 200,000 for o1 Pro.

These models target different tiers: o1 Pro is a flagship model while o3-pro is reasoning. This means they're optimized for different workloads. o1 Pro is built for complex tasks that require deeper reasoning, while o3-pro offers better value for routine operations.

Output costs matter too. o1 Pro charges $600.00/1M output tokens vs $80.00 for o3-pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o3-pro has the edge here at $80.00/1M output tokens.

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

Best Use Cases

Choose o1 Pro when:

• You need more capabilities (vision)
• You're already using OpenAI's API ecosystem

Choose o3-pro when:

• Budget is a primary concern
• You need a larger context window (1,000,000 tokens)
• You need longer outputs (up to 131,072 tokens)
• 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 Pro (OpenAI)

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o3-pro (OpenAI)

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Frequently Asked Questions

Which is cheaper, o1 Pro or o3-pro?▼

o3-pro is cheaper for input tokens at $20.00 per million tokens vs $150.00 for o1 Pro — that's 87% savings on input costs.

What is the context window difference between o1 Pro and o3-pro?▼

o1 Pro supports 200,000 tokens while o3-pro supports 1,000,000 tokens — a difference of 800,000 tokens in favor of o3-pro.

Which model is better for AI Agent / Agentic Workflows?▼

Both models support text, code, reasoning. For ai agent / agentic workflows, o3-pro is the lower-cost option, while o3-pro offers a larger context window (1,000,000 vs 200,000 tokens). Choose o3-pro for budget sensitivity or o3-pro 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 Pro costs about $1,350.00/month and o3-pro costs about $180.00/month. Overall, o3-pro has lower combined input + output rates ($20.00 in, $80.00 out) vs o1 Pro.