GPT-5.4 mini

Name: GPT-5.4 mini API
Brand: OpenAI
Availability: InStock

gpt-5.4-mini

Cheaper. More stable. One-stop API aggregation.

Introduction

GPT-5.4 mini is optimized for high-volume, latency-sensitive text tasks where cost per request dominates.

It remains OpenAI-compatible via `/v1/chat/completions`.

LumeAPI list pricing is $0.375 / $2.25 per 1M tokens (in/out), half of official.

Ideal for classification, short replies, and fan-out agent steps.

Pricing

Official$0.75 / $4.50

LumeAPI$0.375 / $2.25

per 1M tokens (in/out)

Endpoint

Base URL: https://api.lumeapi.site/v1

Auth: Authorization: Bearer <your-lumeapi-key>

Developer docs

Open the integration notes for this model, or the modality guide for request fields and polling.

Model docs All model docs Agent docs (llms.txt)

curl https://api.lumeapi.site/v1/chat/completions \
  -H "Authorization: Bearer $LUMEAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.4-mini",
    "messages": [{"role":"user","content":"Hello"}]
  }'

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