OpenAI: GPT-5.4 Mini (batch)

OpenAI

openai/gpt-5.4-mini

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,...

Context

400K

Input /1M

$0.375

Output /1M

$2.25

Latency (TTFT)

560ms

Pricing

Per 1M tokens, in USD

Input$0.375

Output$2.25

Cache read$0.0375

Specs

file inimage intext intext outModerated

TokenizerGPT

Max output tokens128,000

Supported parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Where it ranks on price

Against 157 routable models

Input$0.375

Cheaper than 56% of routable models

Output$2.25

Cheaper than 51% of routable models

Benchmarks

Intelligence24.6

Coding56.1

Agentic19.7

Composite scores (0–100) from Artificial Analysis, via OpenRouter's model catalog.

Call this model

Swap in your Mizan key — the request/response bodies are OpenAI chat-completion shaped.

cURL

curl https://api.app-mizan.com/v1/chat/completions \
  -H "Authorization: Bearer mizan_rt_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.4-mini",
    "messages": [{ "role": "user", "content": "Say hi in five words." }]
  }'

Models

OpenAI: GPT-5.4 Mini (batch)

OpenAI

openai/gpt-5.4-mini

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,...

Context

400K

Input /1M

$0.375

Output /1M

$2.25

Latency (TTFT)

560ms

Pricing

Per 1M tokens, in USD

Input$0.375

Output$2.25

Cache read$0.0375

Specs

file inimage intext intext outModerated

TokenizerGPT

Max output tokens128,000

Supported parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Where it ranks on price

Against 157 routable models

Input$0.375

Cheaper than 56% of routable models

Output$2.25

Cheaper than 51% of routable models

Benchmarks

Intelligence24.6

Coding56.1

Agentic19.7

Composite scores (0–100) from Artificial Analysis, via OpenRouter's model catalog.

Call this model

Swap in your Mizan key — the request/response bodies are OpenAI chat-completion shaped.

cURL

curl https://api.app-mizan.com/v1/chat/completions \
  -H "Authorization: Bearer mizan_rt_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.4-mini",
    "messages": [{ "role": "user", "content": "Say hi in five words." }]
  }'