Last refreshed 2026-05-19. Next refresh: weekly.
Why use o4-mini on OpenAI API?
OpenAI API offers o4-mini with pay-as-you-go pricing at $1.10/1M input tokens. OpenAI is a leading AI research and deployment company dedicated to developing safe and beneficial artificial general intelligence (AGI) for humanity.
Compare o4-mini across 4 providers to find the best fit for your use caseInput / 1M
$1.10
Output / 1M
$4.40
Cache
Not sourced
Batch
-50% · in $0.55 / out $2.20
Setup recipe
Python + curlInstall
pip install openaiAuth
export OPENAI_API_KEY=...Call
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(Model ID
o4-miniRequest example
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="o4-mini",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
- The examples expect OPENAI_API_KEY; rename it only if your application config maps the new variable.
Compare o4-mini Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $1.10 | $4.40 |
| OpenRouter | $1.10 | $4.40 |
| Replicate API | $1.00 | $4.00 |
| Vercel AI Gateway | $1.10 | $4.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.10 |
| Output tokens | $4.40 |
Capabilities
VisionMultimodalReasoningJSON / Tool useStructured OutputsCode Execution
About o4-mini
Fast and cost-efficient reasoning model with vision support for math, coding, and visual understanding. Retired from ChatGPT February 13, 2026 but still available via API. Released April 16, 2025.
Get Started
Model Specs
Released2025-04-16
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-08