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GPT-5.4 mini

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Try in Playground
Vendor key$0.75/$4.50per 1M tokens

GPT-5.4 mini brings the strengths of GPT-5.4 to a faster, more efficient model designed for high-volume workloads. OpenAI calls it its strongest mini model yet for coding, computer use, and subagents. Reasoning effort supports none by default, plus low, medium, high, and xhigh.

The real OpenAI model

Same weights, same API, same answers. We change only how you pay for it: one key for every maker, one bill, no separate account to open. Every figure on this page comes from OpenAI’s own page — check it.

Maker's own page

Price

per 1M tokens

Input

Output

$0.75

$4.50

Context

400,000

up to 128,000 out

Modalities

ToolsReasoning

Released

Mar 17, 2026

Knows up to Aug 31, 2025

What it would cost you

1000 tokens is roughly 750 English words.

Estimated total$3.75

Where this model runs

Our cloud
openai
OpenAI
azure_openai
Microsoft Azure

If one is unavailable the request goes to the next one, and you never see it happen.

Vendor key
openai
OpenAI

Similar models

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We do not mark up the price of tokens. It is the same price the provider charges. We earn on the top-up fee.

Use it from your code

Model:gpt-5.4-mini
main.py
OpenAI Specification v1.0
from openai import OpenAI

# Works with the official openai package (pip install openai)
client = OpenAI(
    base_url="https://api.flintbeam.com/v1",
    api_key="sk-live-your-api-key"
)

response = client.chat.completions.create(
    model="gpt-5.4-mini",
    messages=[
        {"role": "system", "content": "You are an experienced software engineer."},
        {"role": "user", "content": "Describe the architecture of a distributed cache."}
    ],
    temperature=0.7,
    max_tokens=1500
)

print(response.choices[0].message.content)