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OpenAI: GPT-5.4 Mini

Source description (English)

GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong performance across reasoning, coding,...

View source on OpenRouter
Overview

Model specifications

Context
400,000 tokens
Maximum output
128,000 tokens
Architecture
text+image+file->text
Tokenizer
GPT
Knowledge cutoff
2025-08-31
Moderated
Yes
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$0.75
per 1M tokens
Output
$4.5
per 1M tokens
Cache read
$0.075
per 1M tokens
API

Model configuration

Reasoning

Reasoning required
No
Default parameters
medium
Capabilities
xhigh, high, medium, low, none
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.4-mini","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

Input → Output

Input
fileimagetext
Output
text
Reasoning

No · xhigh · high · medium · low · none

API

Supported API parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetoolsverbosity
Available providers

5 providers

Checked: October 2, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

OpenAI

Not provided
Context
400K
Maximum output
128K
Input
$0.375
Output
$2.25
Cache read
$0.0375
Cache write
Not provided

Azure

Not provided
Context
400K
Maximum output
128K
Input
$0.75
Output
$4.5
Cache read
$0.075
Cache write
Not provided

OpenAI

Not provided
Context
400K
Maximum output
128K
Input
$0.75
Output
$4.5
Cache read
$0.075
Cache write
Not provided

Azure

Not provided
Context
400K
Maximum output
128K
Input
$0.825
Output
$4.95
Cache read
$0.0825
Cache write
Not provided

OpenAI

Not provided
Context
400K
Maximum output
128K
Input
$1.5
Output
$9
Cache read
$0.15
Cache write
Not provided
openai

4 models

All models
openai logoopenai

OpenAI: GPT-6 Luna Decisions

GPT-6 Luna Decisions is GPT-6 Luna served through OpenAI's Decisions API. Instead of generating text, it reads the content passed as state (text, JSON, or images) and returns typed, probabilistic...

Context
1.1M
Input
text · image
Output
decisions
Input: $0.1 per 1M tokensOutput: Free per 1M tokens
View model details →
openai logoopenai

OpenAI: GPT-6.1 Sol Pro

GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks. Cost note: pro mode spends far more...

Context
1.1M
Input
file · image · text
Output
text
Input: $2Output: $10per 1M tokens
View model details →
openai logoopenai

OpenAI: GPT-6.1 Sol Pro (batch)

GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks. Cost note: pro mode spends far more...

Context
1.1M
Input
file · image · text
Output
text
Input: $1Output: $5per 1M tokens
View model details →
openai logoopenai

OpenAI: GPT-6.1 Sol

GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional...

Context
1.1M
Input
file · image · text
Output
text
Input: $2Output: $10per 1M tokens
View model details →