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GPT-5.4 pro

Input:$24/M
Output:$144/M
Kontekst:1,050,000
Maks Output:128,000
Udgivet:Mar 5, 2026

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Playground for GPT-5.4 pro

Udforsk GPT-5.4 pro's Playground โ€” et interaktivt miljรธ til at teste modeller og kรธre forespรธrgsler i realtid. Prรธv prompts, juster parametre og iterer รธjeblikkeligt for at fremskynde udvikling og validere use cases.

Technical Specifications of GPT-5.4-Pro

ItemGPT-5.4-Pro
ProviderOpenAI
Model familyGPT-5.4
Model tierPro (high-compute reasoning variant)
Input typesText, Image
Output typesText
Context window1,050,000 tokens
Max output tokens128,000 tokens
Knowledge cutoffAug 31, 2025
Reasoning levelsmedium, high, xhigh
Tool supportWeb search, file search, code interpreter, image generation
API supportResponses API (recommended)
ReleaseMarch 2026

What is GPT-5.4-Pro?

GPT-5.4-Pro is the highest-capability API variant of the GPT-5.4 model family, designed for extremely complex reasoning, research, coding, and enterprise automation tasks.

Compared with the standard GPT-5.4 model, GPT-5.4-Pro uses significantly more internal compute to โ€œthink harderโ€ before producing responses, which leads to more accurate and reliable outputs for difficult problems.

The model is optimized for professional workloads such as financial analysis, software engineering, scientific research, and large-scale document reasoning.

Main Features of GPT-5.4-Pro

  • Extreme reasoning performance: Uses additional compute to produce more precise answers on complex tasks.
  • 1.05M token context window: Enables analysis of extremely large documents, datasets, or entire repositories.
  • Configurable reasoning depth: Developers can control reasoning effort levels (medium, high, xhigh).
  • Advanced tool orchestration: Works with web search, file retrieval, and other tools through the Responses API.
  • Long-running reasoning support: Complex tasks may take minutes to complete due to deeper compute allocation.
  • Enterprise reliability: Designed for high-stakes workflows requiring maximum answer accuracy.

Benchmark Performance

OpenAI reports significant improvements in professional reasoning benchmarks with GPT-5.4 models:

BenchmarkGPT-5.4GPT-5.2
GDPval (knowledge work)83.0%70.9%
OfficeQA68.1%63.1%
Investment Banking Modeling87.3%71.7%

These improvements highlight GPT-5.4โ€™s stronger performance on complex professional knowledge tasks and analytical reasoning workflows.

GPT-5.4-Pro further improves reliability by allocating more reasoning compute than the standard GPT-5.4 model.

GPT-5.4-Pro vs Comparable Models

ModelContext WindowKey Strength
GPT-5.4-Pro1.05M tokensMaximum reasoning accuracy
GPT-5.41.05M tokensBalanced speed and capability
o3-proSmallerEfficient reasoning
Gemini 3 Pro~1M tokensStrong multimodal capabilities

Key takeaway:
Use GPT-5.4-Pro when maximum reasoning accuracy matters more than latency or cost.

Limitations

  • Higher latency due to deeper reasoning compute
  • More expensive than standard GPT-5.4
  • No audio or video generation
  • Some long tasks may take minutes to complete

How to access GPT-5.4 pro API

Step 1: Sign Up for API Key

Log in toย cometapi.com. If you are not our user yet, please register first. Sign into yourย CometAPI console. Get the access credential API key of the interface. Click โ€œAdd Tokenโ€ at the API token in the personal center, get the token key: sk-xxxxx and submit.

cometapi-key

Step 2: Send Requests to GPT-5.4 pro API

Select the โ€œgpt-5.4-proโ€ endpoint to send the API request and set the request body. The request method and request body are obtained from our website API doc. Our website also provides Apifox test for your convenience. Replace <YOUR_API_KEY> with your actual CometAPI key from your account. base url isย Responses.

Insert your question or request into the content fieldโ€”this is what the model will respond to . Process the API response to get the generated answer.

Step 3: Retrieve and Verify Results

Process the API response to get the generated answer. After processing, the API responds with the task status and output data.

FAQ

Priser for GPT-5.4 pro

Udforsk konkurrencedygtige priser for GPT-5.4 pro, designet til at passe til forskellige budgetter og brugsbehov. Vores fleksible planer sikrer, at du kun betaler for det, du bruger, hvilket gรธr det nemt at skalere, efterhรฅnden som dine krav vokser. Opdag hvordan GPT-5.4 pro kan forbedre dine projekter, mens omkostningerne holdes hรฅndterbare.

ModelTierConditionComet Price (USD / M Tokens)Official Price (USD / M Tokens)Discount
gpt-5.4-proshort_contextlen <= 272000
Input:$24.0000/M
Output:$144.0000/M
Input:$30.0000/M
Output:$180.0000/M
-20%
long_context-
Input:$48.0000/M
Output:$216.0000/M
Input:$60.0000/M
Output:$270.0000/M
-20%
gpt-5.4-pro-2026-03-05short_contextlen <= 272000
Input:$24.0000/M
Output:$144.0000/M
Input:$30.0000/M
Output:$180.0000/M
-20%
long_context-
Input:$48.0000/M
Output:$216.0000/M
Input:$60.0000/M
Output:$270.0000/M
-20%

Eksempelkode og API til GPT-5.4 pro

Fรฅ adgang til omfattende eksempelkode og API-ressourcer for GPT-5.4 pro for at strรธmline din integrationsproces. Vores detaljerede dokumentation giver trin-for-trin vejledning, der hjรฆlper dig med at udnytte det fulde potentiale af GPT-5.4 pro i dine projekter.

curl https://api.cometapi.com/v1/responses \
     --header "Authorization: Bearer $COMETAPI_KEY" \
     --header "content-type: application/json" \
     --data \
'{
    "model": "gpt-5.4-pro-2026-03-05",
    "input": "How much gold would it take to coat the Statue of Liberty in a 1mm layer?",
    "reasoning": {
        "effort": "high"
    }
}'

cURL Code Example

curl https://api.cometapi.com/v1/responses \
     --header "Authorization: Bearer $COMETAPI_KEY" \
     --header "content-type: application/json" \
     --data \
'{
    "model": "gpt-5.4-pro-2026-03-05",
    "input": "How much gold would it take to coat the Statue of Liberty in a 1mm layer?",
    "reasoning": {
        "effort": "high"
    }
}'

Python Code Example

from openai import OpenAI
import os

# Get your CometAPI key from https://api.cometapi.com/console/token, and paste it here
COMETAPI_KEY = os.environ.get("COMETAPI_KEY") or "<YOUR_COMETAPI_KEY>"
BASE_URL = "https://api.cometapi.com/v1"

client = OpenAI(base_url=BASE_URL, api_key=COMETAPI_KEY)

response = client.responses.create(
    model="gpt-5.4-pro-2026-03-05",
    input="How much gold would it take to coat the Statue of Liberty in a 1mm layer?",
    reasoning={"effort": "high"},
)

print(response.output_text)

JavaScript Code Example

import OpenAI from "openai";

// Get your CometAPI key from https://api.cometapi.com/console/token, and paste it here
const COMETAPI_KEY = process.env.COMETAPI_KEY || "<YOUR_COMETAPI_KEY>";
const BASE_URL = "https://api.cometapi.com/v1";

const client = new OpenAI({
    apiKey: COMETAPI_KEY,
    baseURL: BASE_URL,
});

async function main() {
    const response = await client.responses.create({
        model: "gpt-5.4-pro-2026-03-05",
        input: "How much gold would it take to coat the Statue of Liberty in a 1mm layer?",
        reasoning: {
            effort: "high",
        },
    });

    console.log(response.output_text);
}

main();

Versioner af GPT-5.4 pro

ร…rsagen til, at GPT-5.4 pro har flere รธjebliksbilleder kan omfatte potentielle faktorer sรฅsom variationer i output efter opdateringer, der krรฆver รฆldre รธjebliksbilleder for konsistens, at give udviklere en overgangsperiode til tilpasning og migration, og at forskellige รธjebliksbilleder svarer til globale eller regionale slutpunkter for at optimere brugeroplevelsen. For detaljerede forskelle mellem versioner, henvises der til den officielle dokumentation.

Model iddescriptionAvailabilityRequest
gpt-5.4-pro-2026-03-05Recommend, Pointing to the latest modelโœ…Responses
gpt-5.4-proOfficial Previewโœ…Responses