GPT-5.4 Mini API

GPT-5.4 Mini on AIMLAPI.

Modalities
Image, TextText
In / Out price
$1.59/$9.52per 1M
Context window
400K tokens
Released
Mar 17, 2026

GPT-5.4 Mini overview

The pelican test: one prompt, every text model, unedited SVG output from Nov 3, 2026.

SVG of a pelican riding a bicycle, written by GPT-5.4 Mini through AI/ML API

GPT-5.4 Mini specs

Model ID
openai/gpt-5.4-mini
Developer
OpenAI
Context window
400,000 tokens
Max output
128,000 tokens
Input
Image, Text
Output
Text
API
OpenAI-compatible, base URL https://api.aimlapi.com/v1

Coding and code review
Generate, debug, and review code across languages, reading whole files or repos in a single prompt.

Agentic and multi-step workflows
Reliable tool-calling and instruction-following suit agent loops that plan, call tools, and iterate.

Complex reasoning
Extended reasoning improves reliability on multi-step math, logic, and technical analysis.

Long-document analysis
Summarize and extract from contracts, papers, and reports without aggressive chunking.

Use cases

GPT-5.4 Mini is documented as suited to coding workflows that benefit from fast iteration, including targeted edits, codebase navigation, front-end generation, and debugging loops.

It is also suited to multimodal tasks, especially computer use, where it can quickly interpret screenshots of dense user interfaces to complete computer-use tasks with speed.

It is documented as a strong fit for systems that combine models of different sizes, including setups where a larger model handles planning while GPT-5.4 Mini handles specific subtasks.

It is also described as useful for tool-using and function-calling workflows, including agentic tasks that rely on fast tool use and external or enterprise content retrieval.

Capabilities

  • Function calling
  • Reasoning
  • Streaming
  • Structured outputs
  • Web search

GPT-5.4 Mini benchmarks by Artificial Analysis

See how GPT-5.4 Mini compares in generation speed. Data retrieved Nov 3, 2026.

Speed

Output tokens / second

Benchmark results

Compare 9 models available on AI/ML API across 5 independent benchmarks.

Humanity's Last Exam

Expert-written questions across academic subjects.

GPT-5.4 Mini API pricing

GPT-5.4 Mini pricing in US dollars
UsagePriceUnit
Input$1.591M tokens
Output$9.521M tokens
Cached input$0.15871M tokens

Prices from the AI/ML API price list, checked on Nov 4, 2026.

GPT-5.4 Mini vs other models: token prices

AI/ML API input and output rates for 5 models, per million tokens.

AI/ML API model prices in USD per million tokens
ModelInputOutput
GPT-5.4 Mini$1.59$9.52
GPT-6 Luna$0.1$0.5
GPT-6.1 Terra$1$5
GPT-6.1 Sol$2$10
GPT-6.1 Terra Pro$2.12$10.58

How to use the GPT-5.4 Mini API

View docs

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/chat/completions' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "openai/gpt-5.4-mini",
  "messages": [
    {
      "role": "user",
      "content": "Write a haiku about the ocean."
    }
  ]
}'

Related articles

All posts

GPT-5.4 Mini FAQ

What is the context window of GPT-5.4 Mini?

GPT-5.4 Mini has a 400,000 tokens context window and can return up to 128,000 tokens.

What inputs and outputs does GPT-5.4 Mini support?

GPT-5.4 Mini takes image, text as input and returns text.

What is the model ID for GPT-5.4 Mini?

Use openai/gpt-5.4-mini as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

How much does GPT-5.4 Mini cost?

GPT-5.4 Mini costs $1.59 input and $9.52 output per 1M tokens on AI/ML API, billed as you go with no subscription.

Does GPT-5.4 Mini support streaming?

Yes, GPT-5.4 Mini can stream responses as they are generated.

Can GPT-5.4 Mini read images?

Yes, GPT-5.4 Mini accepts image input alongside text.

Who created GPT-5.4 Mini?

GPT-5.4 Mini was built by OpenAI.

Start building with GPT-5.4 Mini

GPT-5.4 Mini API

openai/gpt-5.4-mini

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/chat/completions' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "openai/gpt-5.4-mini",
  "messages": [
    {
      "role": "user",
      "content": "Write a haiku about the ocean."
    }
  ]
}'