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GPT-5.3 Codex

GPT-5.3 Codex

OpenAI 目前最强的 agentic coding 模型。

Agentic Coding推理控制长链路任务

上下文窗口

-

gpt-5.3-codex

最大输出

-

1M tokens

输入

$1.575$1.75

10% off

1M tokens

输出

$12.6$14

10% off

1M tokens

模型代码gpt-5.3-codex

试玩区

gpt-5.3-codex

暂无输出

定价

方案上下文窗口最大输出输入输出缓存写入缓存读取
gpt-5.3-codex
--
$1.575$1.7510% off

1M tokens

$12.6$1410% off

1M tokens

--

该价格为 OpenAI 官方 GPT-5.3 Codex 定价。

缓存输入价格适用于复用的提示词 tokens。

README

GPT-5.3 Codex 是 OpenAI 面向 Codex 类环境的编程专用模型,针对长链路软件任务、智能体编码流程和更强的推理控制能力进行了优化。
  • OpenAI 将 GPT-5.3-Codex 描述为其目前最强的 agentic coding 模型。
  • 它针对 Codex 或类似环境中的编码任务进行了优化,并支持 `low`、`medium`、`high` 和 `xhigh` 推理设置。
  • 它最适合长时间运行的软件任务、智能体式代码工作流,以及需要专门编程模型而非通用聊天模型的产品。

API

查看 API 文档以获取请求格式、参数说明和集成方式。

OpenAI 目前最强的 agentic coding 模型。

模型代码

gpt-5.3-codex

查看 API 文档

API

端点

POST /v1/responses

认证

Authorization: Bearer YOUR_REACH_API_KEY
Content-Type: application/json

示例

curl -X POST "https://direct.reachapi.ai/v1/responses" \
  -H "Authorization: Bearer YOUR_REACH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "YOUR_MODEL_ID",
    "input": "Introduce ReachAPI in one sentence.",
    "temperature": 0.2
  }'

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