OpenAI GPT-4o API Pricing Guide 2026

GPT-4o API Pricing Overview

GPT-4o is OpenAI's flagship multimodal model. Here's the complete pricing breakdown.

Current Pricing

| Model | Input (1M tokens) | Output (1M tokens) | |---|---|---| | gpt-4o | $2.50 | $10.00 | | gpt-4o-mini | $0.15 | $0.60 | | gpt-4-turbo | $10.00 | $30.00 | | o3-mini | $1.10 | $4.40 | | o1 | $15.00 | $60.00 |

Cost Calculator Example

# Calculate GPT-4o API cost for your usage
input_tokens = 1000000   # 1M input tokens
output_tokens = 500000   # 500K output tokens

input_cost = (input_tokens / 1000000) * 2.50
output_cost = (output_tokens / 1000000) * 10.00
total = input_cost + output_cost

print(f"Total cost: ${total:.2f}")
# Total cost: $7.50

How to Access GPT-4o via AI API Hub

import openai

client = openai.OpenAI(
    api_key="your-api-key",
    base_url="https://api.apiyihe.org/v1"
)

response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "Hello"}]
)

When to Use Which Model

gpt-4o: Complex reasoning, coding, multimodal tasks
gpt-4o-mini: Lightweight tasks, cost-sensitive applications
o3-mini: Math and science reasoning at lower cost
o1: Hardest problems requiring deep reasoning

Saving Tips

Use gpt-4o-mini for 80% of tasks, gpt-4o for the critical 20%
Batch multiple prompts into single requests
Cache common responses to avoid redundant API calls