GPT-5.4 vs o3-pro

Compare OpenAI and OpenAI AI models

OpenAI

GPT-5.4

OpenAI

o3-pro

Try OpenAI →

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

GPT-5.4

Per Request:$0.01

Daily:$1.00

Monthly:$30.00

Yearly:$365.00

o3-pro

Per Request:$0.06

Daily:$6.00

Monthly:$180.00

Yearly:$2,190.00

Cost Differences

+$0.05

Per Request

+$5.00

Daily

+$150.00

Monthly

+$1,825.00

Yearly

o3-pro costs more than GPT-5.4

Feature Comparison

Feature	GPT-5.4	o3-pro
Provider	OpenAI	OpenAI
Input Price	$2.50/1M tokens	$20.00/1M tokens
Output Price	$15.00/1M tokens	$80.00/1M tokens
Context Window	1,050,000 tokens	1,000,000 tokens
Max Output	131,072 tokens	131,072 tokens
Category	flagship	reasoning
Capabilities	textvisioncodereasoning	textreasoningcode
Release Date	3/6/2026	6/10/2025

GPT-5.4 vs o3-pro: Which Should You Choose?

Choosing between GPT-5.4 and o3-pro depends on your priorities: cost efficiency, context length, or raw capability. GPT-5.4 is the more affordable option at $2.50/1M input tokens — 88% cheaper than o3-pro. Meanwhile, GPT-5.4 offers a significantly larger context window at 1,050,000 tokens vs 1,000,000 for o3-pro.

These models target different tiers: GPT-5.4 is a flagship model while o3-pro is reasoning. This means they're optimized for different workloads. GPT-5.4 is built for complex tasks that require deeper reasoning, while o3-pro offers better value for routine operations.

Output costs matter too. GPT-5.4 charges $15.00/1M output tokens vs $80.00 for o3-pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-5.4 has the edge here at $15.00/1M output tokens.

Multimodal capabilities: GPT-5.4 supports vision (image inputs) while o3-pro is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose GPT-5.4 when:

• Budget is a primary concern
• You need a larger context window (1,050,000 tokens)
• You need more capabilities (vision)
• You're already using OpenAI's API ecosystem

Choose o3-pro when:

• You're already using OpenAI's API ecosystem

Try Different Scenarios

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

GPT-5.4 (OpenAI)

Cost Calculator

Provider

Model

Input Tokens

Output Tokens

Requests/Day

Select a provider and model to see costs

o3-pro (OpenAI)

Cost Calculator

Provider

Model

Input Tokens

Output Tokens

Requests/Day

Select a provider and model to see costs

Start using GPT-5.4 today

Start using o3-pro today

Frequently Asked Questions

Which is cheaper, GPT-5.4 or o3-pro?▼

GPT-5.4 is cheaper for input tokens at $2.50 per million tokens vs $20.00 for o3-pro — that's 88% savings on input costs.

What is the context window difference between GPT-5.4 and o3-pro?▼

GPT-5.4 supports 1,050,000 tokens while o3-pro supports 1,000,000 tokens — a difference of 50,000 tokens in favor of GPT-5.4.

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

Both models support text, code, reasoning. For ai agent / agentic workflows, GPT-5.4 is the lower-cost option, while GPT-5.4 offers a larger context window (1,050,000 vs 1,000,000 tokens). Choose GPT-5.4 for budget sensitivity or GPT-5.4 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, GPT-5.4 costs about $30.00/month and o3-pro costs about $180.00/month. Overall, GPT-5.4 has lower combined input + output rates ($2.50 in, $15.00 out) vs o3-pro.