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OpenAI · API

GPT-5.4 Mini API

Use 1M context with one OmniaKey API key.

Model ID
gpt-5.4-mini
Context
1M
Provider
OpenAI
Input · USD / 1M tokens
$0.0525 USD
Official price $0.75 USD
Output · USD / 1M tokens
$0.315 USD
Official price $4.5 USD
Savings
93%
Last verified
2026-07-14

01

Where it fits

Choose it for high-frequency coding-agent calls where a smaller listed rate matters more than moving up the family.

02

Model capabilities

Vision

Accepts visual input alongside text for multimodal coding and analysis tasks.

Tool use

Can select and call tools in agent workflows that support structured tool use.

Fast responses

Optimized for responsive iteration and higher-volume agent tasks.

03

OpenAI-compatible API

Keep your client and change the base URL, API key, and model ID.

curl
curl https://api.omniakey.com/v1/chat/completions \
  -H "Authorization: Bearer $OMNIAKEY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.4-mini",
    "messages": [{"role": "user", "content": "Explain this codebase"}],
    "stream": true
  }'

04

Compatible coding tools

Codex
Cursor
Cline
Aider

More OpenAI models

Frequently asked questions

How much does GPT-5.4 Mini cost on OmniaKey?

OmniaKey charges $0.0525 USD per 1M input tokens and $0.315 USD per 1M output tokens, in USD. Official prices are $0.75 USD and $4.5 USD; you save 93%.

What is the context window for GPT-5.4 Mini?

The listed context window is 1M. Actual usable limits can also depend on the client and upstream request format.

Which coding tools work with GPT-5.4 Mini?

The current catalog lists compatibility with Codex, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.

GPT-5.4 Mini API, Pricing & Coding Guide · OmniaKey