GPT-5.3 Codex | OpenAI Agentic Coding Model API

Name: GPT 5.3 Codex API
Brand: openai
Price: 1.75 USD
Availability: InStock

API 사용법

다음 코드 예시를 사용해 API와 연동하세요:

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://llm.wavespeed.ai/v1"
)

response = client.chat.completions.create(
    model="openai/gpt-5.3-codex",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)

print(response.choices[0].message.content)

모델 소개

Openai gpt-5.3-codex

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broade

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results on SWE-Bench Pro and strong performance on Terminal-Bench 2.0 and OSWorld-Verified, reflecting improved multi-language coding, terminal proficiency, and real-world computer-use skills. The model is optimized for long-running, tool-using workflows and supports interactive steering during execution, making it suitable for complex development tasks, debugging, deployment, and iterative product work. Beyond coding, GPT-5.3-Codex performs strongly on structured knowledge-work benchmarks such as GDPval, supporting tasks like document drafting, spreadsheet analysis, slide creation, and operational research across domains. It is trained with enhanced cybersecurity awareness, including vulnerability identification capabilities, and deployed with ad

Why It Looks Great

Large Language Model architecture for efficient processing
400000 context window for long document handling
Competitive pricing at $1.7/$14.0 per million tokens

Key Features

Context Window: 400000 tokens
Max Output: 128000 tokens
Vision: Supported
Function Calling: Supported

Specifications

Specification	Value
Provider	Openai
Model Type	Large Language Model (LLM)
Architecture	N/A
Context Window	400000 tokens
Max Output	128000 tokens
Input	Text
Output	Text
Vision	Supported
Function Calling	Supported

Pricing

Token Type	Cost per Million Tokens
Input	$1.7
Output	$14.0

How to Use

Write your prompt — describe the task, provide context, and specify desired output format.
Submit — the model processes your request and returns the response.

API Integration

Base URL: https://llm.wavespeed.ai/v1 API Endpoint: chat/completions Model ID: openai/gpt-5.3-codex

API Usage

Python SDK

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://llm.wavespeed.ai/v1"
)

response = client.chat.completions.create(
    model="openai/gpt-5.3-codex",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)

print(response.choices[0].message.content)

cURL

curl https://llm.wavespeed.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "openai/gpt-5.3-codex",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Notes

Model: openai/gpt-5.3-codex
Provider: Openai

GPT 5.3 Codex API

openai/gpt-5.3-codex

GPT 5.3 Codex에 대해 자주 묻는 질문

GPT 5.3 Codex API 비용은 얼마인가요?+

WaveSpeedAI 가격: 입력 토큰 100만 개당 $1.75, 출력 토큰 100만 개당 $14.00. 프롬프트 캐싱과 배치 처리는 별도로 청구되며 긴 반복 작업에서 실질 비용을 줄여 줍니다.

GPT 5.3 Codex의 컨텍스트 윈도우는 얼마나 되나요?+

GPT 5.3 Codex은 요청당 최대 400K 컨텍스트 토큰과 최대 128K 출력 토큰을 지원합니다.

GPT 5.3 Codex은 OpenAI 호환인가요?+

네. WaveSpeedAI는 OpenAI 호환 엔드포인트 https://llm.wavespeed.ai/v1을 통해 GPT 5.3 Codex을 제공합니다. 공식 OpenAI SDK의 base URL을 이 주소로 변경하고 WaveSpeedAI API 키를 사용하면 코드 변경 없이 사용할 수 있습니다.

GPT 5.3 Codex을 어떻게 시작하나요?+

WaveSpeedAI에 로그인하고 Access Keys에서 API 키를 만든 다음, 위에 표시된 모델 ID로 https://llm.wavespeed.ai/v1/chat/completions에 요청을 보내세요. 신규 계정은 GPT 5.3 Codex을 평가할 수 있는 무료 크레딧을 받습니다.

가격