Resource detail

GPT-5

OpenAI's previous-generation reasoning model for demanding reasoning and coding; new projects should evaluate GPT-5.6 first.

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At a glance

gpt-5

Pricing

Paid

Access

Login required

Platforms

Web

Chinese support

Yes

Last checked

2026-09-03

Popularity

97/100

Pricing evidence

USD 1.25 / 1M input tokens输出价格为 $10 / 1M tokens；官方文档显示免费 API tier 不支持 GPT-5，ChatGPT 访问政策另行计算；官方建议新项目迁移至 GPT-5.6。Open price source

Verification and source

Stale

官方当前标为上一代模型；GPT-5-2025-08-07 snapshot 已标记 Deprecated，新项目应优先评估 GPT-5.6。

OpenAI Developers GPT-5 模型页

Model background

Closed weights

GPT-5 remains useful for demanding reasoning, coding, and tool use, but OpenAI currently positions it as a previous-generation model and recommends GPT-5.6 for new projects.

Why it mattered

GPT-5 remains useful for demanding reasoning, coding, and tool use, but OpenAI currently positions it as a previous-generation model and recommends GPT-5.6 for new projects.

Official linkhttps://developers.openai.com/api/docs/models/gpt-5

Tags

上一代ReasoningCoding

Audience

开发者知识工作者

Update info

Updated 2026-08-29

Popularity 97/100

Model capabilities

Multimodal ✓Reasoning ✓Coding ✓Tool use ✓Long context ✓

Context length

400K tokens

API price

USD 1.25 / 10 /1M tokens

Provider

openai

Typical use

Complex reasoningCode generationAgent

Citation card

GPT-5

OpenAI's previous-generation reasoning model for demanding reasoning and coding; new projects should evaluate GPT-5.6 first.

AI X Tool · https://aixtool.xyz/resources/gpt-5

Why try it

Good fit

复杂推理和代码能力成熟
上下文窗口达 400K
支持函数调用和工具协作

Watch outs

已不是 OpenAI 当前推荐的新项目起点
API 价格高于低成本型号
snapshot 生命周期需要单独核对

Not for

需要长期稳定新版本 alias 的新项目
只追求最低 token 成本的简单任务

Change log

Catalog update

2026-08-29

Last verified

2026-09-03

Review note

官方当前标为上一代模型；GPT-5-2025-08-07 snapshot 已标记 Deprecated，新项目应优先评估 GPT-5.6。

FAQ

GPT-5 现在还是 OpenAI 的最新模型吗？

不是。官方模型页将 GPT-5 标为上一代模型，并建议新项目迁移至 GPT-5.6。

GPT-5 API 怎么收费？

当前核验到的 API 价格为输入 $1.25 / 1M tokens、输出 $10 / 1M tokens。

GPT-5 有免费 API tier 吗？

官方当前文档显示免费 API tier 不支持 GPT-5。

大模型到底是什么：从 Token 到上下文窗口用一篇文章建立理解大语言模型的最小知识框架，知道每个参数会怎样影响结果。如何选择适合自己的 AI 模型从任务、延迟、成本、上下文和数据边界五个维度做模型选型。

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