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GPT 5.5

Input:$4/M
Output:$24/M
Cache Read:$0.4/M
Udgivet:Apr 24, 2026

OpenAIs klogeste og mest intuitive flagskibsmodel, designet til kompleks kodning, agentbaserede arbejdsgange, computeranvendelse, dataanalyse og dybdegående forskning. Leverer intelligens på absolut førende niveau med samme lave latenstid som GPT-5.4, samtidig med at den fuldfører opgaver med større tokeneffektivitet. Den foretrukne model til krævende professionelle og erhvervsmæssige arbejdsbelastninger.

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Playground for GPT 5.5

Udforsk GPT 5.5's Playground — et interaktivt miljø til at teste modeller og køre forespørgsler i realtid. Prøv prompts, juster parametre og iterer øjeblikkeligt for at fremskynde udvikling og validere use cases.

Technical Specifications of GPT-5.5

ItemGPT-5.5
ProviderOpenAI
Model FamilyGPT-5 series
Release DateApril 23, 2026
Input TypesText, Images
Output TypesText
Tool UseYes (web browsing, coding tools, computer-use workflows)
Context WindowNot officially disclosed
Max Output TokensNot officially disclosed
Primary StrengthsAgentic coding, computer use, knowledge work, scientific research
AvailabilityChatGPT Plus / Pro / Business / Enterprise, Codex
API AccessAnnounced as coming soon after release

What is GPT-5.5?

GPT-5.5 is OpenAI’s latest flagship productivity-focused model positioned as a “new class of intelligence for real work.” Rather than only answering prompts, GPT-5.5 is optimized to complete messy multi-step tasks with less supervision. It is designed to plan, use tools, check outputs, and persist through ambiguity better than prior GPT-5.4 generation systems.

OpenAI positions GPT-5.5 as a major step toward practical AI coworkers that can finish real tasks instead of only chatting.

Main Features of GPT-5.5

  • Stronger autonomous task execution across multi-step workflows
  • State-of-the-art coding performance in terminal and repo-scale tasks
  • Better spreadsheet, document, and business workflow handling
  • Improved computer-use ability: navigating apps, interfaces, files
  • More token-efficient than GPT-5.4 on many tasks
  • Maintains GPT-5.4-class serving latency while increasing capability

Benchmark Performance of GPT-5.5

BenchmarkGPT-5.5GPT-5.4
Terminal-Bench 2.082.7%75.1%
Expert-SWE (internal)73.1%68.5%
GDPval84.9%83.0%
OSWorld-Verified78.7%75.0%
Toolathlon55.6%54.6%
BrowseComp84.4%82.7%
FrontierMath Tier 435.4%27.1%

These numbers suggest GPT-5.5 improves coding, tool use, browsing, and advanced reasoning over GPT-5.4.

GPT-5.5 vs Other Models

ModelBest ForRelative Position
GPT-5.5Real-world workflows + coding + toolsMost balanced flagship
GPT-5.4Prior flagshipLower benchmark scores
Claude Opus 4.7Writing / reasoning competitorTrails on some coding evals
Gemini 3.1 ProMultimodal ecosystem tasksTrails on several OpenAI evals

Limitations of GPT-5.5

  • Context window not publicly specified at launch
  • API access initially delayed for safety rollout
  • Can still require human review for critical legal/medical outputs
  • Premium availability tiers first
  • Some benchmark claims are vendor-reported

Best Use Cases

  1. Large codebase debugging and refactors
  2. Research + source gathering workflows
  3. Spreadsheet analysis and business planning
  4. Multi-tool automation tasks
  5. Internal knowledge work and documentation generation
  6. Scientific exploration and structured analysis

How to access and use GPT-5.5 API

Step 1: Sign Up for API Key

Log in to cometapi.com. If you are not our user yet, please register first. Sign into your CometAPI console. Get the access credential API key of the interface. Click “Add Token” at the API token in the personal center, get the token key: sk-xxxxx and submit.

Step 2: Send Requests to GPT-5.5 API

Select the “gpt-5.5” 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. Where to call it:   response format.

Insert your question or request into the content field—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 5.5

Udforsk konkurrencedygtige priser for GPT 5.5, designet til at passe til forskellige budgetter og brugsbehov. Vores fleksible planer sikrer, at du kun betaler for det, du bruger, hvilket gør det nemt at skalere, efterhånden som dine krav vokser. Opdag hvordan GPT 5.5 kan forbedre dine projekter, mens omkostningerne holdes håndterbare.

TierConditionComet Price (USD / M Tokens)Official Price (USD / M Tokens)Discount
short_contextlen <= 272000
Input:$4.0000/M
Output:$24.0000/M
Cache Read:$0.4000/M
Input:$5.0000/M
Output:$30.0000/M
Cache Read:$0.5000/M
-20%
long_context-
Input:$8.0000/M
Output:$36.0000/M
Cache Read:$0.8000/M
Input:$10.0000/M
Output:$45.0000/M
Cache Read:$1.0000/M
-20%

Eksempelkode og API til GPT 5.5

Få adgang til omfattende eksempelkode og API-ressourcer for GPT 5.5 for at strømline din integrationsproces. Vores detaljerede dokumentation giver trin-for-trin vejledning, der hjælper dig med at udnytte det fulde potentiale af GPT 5.5 i dine projekter.

curl https://api.cometapi.com/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $COMETAPI_KEY" \
  -d '{
    "model": "gpt-5.5",
    "input": "Tell me a three sentence bedtime story about a unicorn."
  }'

cURL Code Example

curl https://api.cometapi.com/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $COMETAPI_KEY" \
  -d '{
    "model": "gpt-5.5",
    "input": "Tell me a three sentence bedtime story about a unicorn."
  }'

Python Code Example

from openai import OpenAI
import os

# Get your CometAPI key from https://www.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-5.5",
    input="Tell me a three sentence bedtime story about a unicorn.",
)

print(response.output_text)

JavaScript Code Example

import OpenAI from "openai";

// Get your CometAPI key from https://www.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,
});

const response = await client.responses.create({
  model: "gpt-5.5",
  input: "Tell me a three sentence bedtime story about a unicorn.",
});

console.log(response.output_text);

Uptime

Anmodningssuccessrate over de seneste 30 dage, der afspejler pålideligheden hos hver modeludbyder. CometAPI overvåger alle tilsluttede udbydere i realtid, 24/7.

RespondLIVE
2639msAvg. Response
UptimeLIVE
100.0%Avg. Uptime