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OpenAI · Efficient

GPT 5.4 Mini

Added Mar 17, 2026

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Use in the app

GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads.

  • Reasoning
  • Tools
  • Vision
  • Structured output
  • PDF input
Input
Text, Images
Output
Text
Reasoning effort
none · low · medium · high · xhigh
Discovery tier
Efficient

Pricing

USD per 1M tokens
Input
$0.75
Output
$4.50
Cache read
$0.075

Reference prices as published by the model provider. API example

Specifications

Context window
400K
Max output
128K
Average output (7 days)
172 tokens
Longer than 17% of 465 models

Side by side

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TryGranite 4.2 8BGLM 4.5 AirQwen3 Next 80B A3B (Thinking)All 3

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

Intelligence Index

11.1

Better than 23% of 326 scored models

3.8Catalog models by score55.1

Agentic work

  • GDPval-AAv2.1

    589 Elo

    Economically valuable occupational tasks, rated head to head

    Better than 16% of 187 scored models

Document reasoning

  • AA-LCRv1.1

    37.0%

    Reasoning across long documents

    Better than 17% of 309 scored models

Reasoning and knowledge

  • Humanity’s Last Exam

    5.9%

    Expert-level questions across academic fields

    Better than 21% of 323 scored models

  • GPQA Diamond

    60.6%

    Graduate-level science questions

    Better than 18% of 291 scored models

  • IFBench

    38.8%

    Following precise output instructions

    Better than 23% of 215 scored models

Legacy evaluations

  • Terminal-Bench Hard

    18.2%

    Earlier terminal task suite

    Better than 36% of 212 scored models

  • τ²-Bench Telecom

    23.4%

    Tool use in a customer-support simulation

    Better than 12% of 214 scored models

  • AA-LCR (unversioned)

    37.0%

    Long-context reasoning, earlier grading

    Better than 17% of 309 scored models

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

Live routing data

Performance and reliability

Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.

Throughput
148.0 tok/s
Faster than 76% of 247 models
Time to first token
2.3 s
Quicker than 69% of 247 models
Prompt cache hits
35.3%
About $0.51 per 1M input tokens with caching
Request success (24h)
100.0%
Reliable

Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.

Hourly request success · last 72 hoursLowest hour 100.0%
  • Healthy (98% or more)
  • Degraded (90–98%)
  • Down (under 90%)
  • No requests

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.4-mini",
    "reasoning_effort": "medium",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="openai/gpt-5.4-mini",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

OpenAI

Other OpenAI models, starting with the same family.