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GPT-5.3 Chat (latest)

openaiopenai/gpt-5.3-chat-latest

供应商自营与 TheRouter 服务形态的差异

供应商自己运营时

OpenAI 将 gpt-5.3-chat-latest 作为指向最新 GPT-5.3 聊天版本的移动聊天调优别名运行。

在 TheRouter 上

TheRouter 通过 OpenAI 兼容 /v1/chat/completions 端点服务同一别名；TheRouter 不会把 latest ID 背后的上游版本冻结。

developers.openai.com ↗

API 使用指南

Chat 调用

通过 TheRouter 的 OpenAI 兼容 chat completions 端点调用 GPT-5.3 Chat Latest。

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.3-chat-latest","messages":[{"role":"user","content":"Summarize the risks in this rollout plan."}]}'

流式输出

在保持相同模型别名和端点形态的同时，流式输出长回答。

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.3-chat-latest","stream":true,"messages":[{"role":"user","content":"Draft a migration checklist for a model alias."}]}'

工具调用

使用标准 OpenAI 兼容 tools 做函数调用和编排。

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.3-chat-latest","messages":[{"role":"user","content":"Should we page the on-call?"}],"tools":[{"type":"function","function":{"name":"lookup_incident","description":"Fetch incident severity","parameters":{"type":"object","properties":{"service":{"type":"string"}},"required":["service"]}}}]}'

结构化 JSON

用 response_format 约束提取和路由决策的响应格式。

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.3-chat-latest","response_format":{"type":"json_object"},"messages":[{"role":"user","content":"Return JSON with fields: risk_level, reason."}]}'

视觉输入

发送文本加 image_url 内容块，用于截图和图像驱动聊天。

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.3-chat-latest","messages":[{"role":"user","content":[{"type":"text","text":"What changed in this UI?"},{"type":"image_url","image_url":{"url":"https://therouter.ai/assets/vision-sample.png"}}]}]}'
事实档案 — 本页每条断言可在此回溯来源
来源URL采集于
TheRouter 模型 IDdevelopers.openai.com ↗2026-08-11已核实
模型角色——已核实
上下文窗口——已核实
最大输出——已核实
输入 / 输出模态——已核实
支持参数platform.openai.com ↗2026-08-11已核实
TheRouter 价格——已核实
训练数据截止——未知
许可openai.com ↗2026-08-11已核实
Public reasoning benchmarkdevelopers.openai.com ↗2026-08-11未知
Public coding benchmarkdevelopers.openai.com ↗2026-08-11未知
Public multimodal benchmarkplatform.openai.com ↗2026-08-11未知
TheRouter 为 GPT-5.3 Chat Latest 补齐独立模型页developers.openai.com ↗2026-08-11已核实
openai/gpt-5.3-chat-latest 是什么？developers.openai.com ↗2026-08-11待核实
GPT-5.3 Chat Latest 支持图片吗？platform.openai.com ↗2026-08-11待核实
它和 GPT-5.3-Codex 有什么不同？openai.com ↗2026-08-11待核实
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