GPT-5.6全量放送，Codex正式并入ChatGPT

美国时间 7 月 9 日，量放备受瞩目的正式 GPT-5.6 系列正式全量上线。与此同时，并入OpenAI 推出了 ChatGPT Work，量放其核心动作并非简单的正式功能叠加，而是并入将 Codex深度并入 ChatGPT 生态——Codex 已彻底成为 ChatGPT 的一部分，甚至 App 图标也统一更换（用户可选择保留原图标）。量放

早在 13 天前，正式OpenAI 在 GPT-5.6 Sol 限量预览文档中，并入仅展示了编码、量放生物、正式网络安全等核心领域的并入评测，并承诺模型全面开放时将公布更完整的量放评估体系。如今，正式这份“正式成绩单”已随模型一同发布。并入

在官方数据落地前，民间评测已率先爆发。大量获得早期访问权限的用户在社交平台分享了实战体验。相较于冰冷的 Benchmark 数据，这些反馈更像是一次提前泄露的“实战观察”。

用最直白的话总结：GPT-5.6 Sol 在极限难题攻坚上略逊于 Fable 5，但其性价比极高，是日常办公的首选。

它更便宜、速度极快（这一点至关重要）。

01 核心亮点：便宜、极速、高性价比

OpenAI 在发布文档中开宗明义：GPT-5.6 的目标是“每个 token 带来更高智能、更强的每美元性能，以及在最难任务上按需调用更高能力”。

价格优势显著

GPT-5.6 系列分为 Sol、Terra、Luna三个版本。根据 OpenAI 公布的 API 价格（按每 100 万 token 计费）：

• Sol：输入 $5，输出 $30
• Terra：输入 $2.5，输出 $15
• Luna：输入 $1，输出 $6

这一价格策略极具杀伤力。以 GPT-5.6 Sol 对标 Claude Fable 5 为例，Sol 的输入价格仅为后者的一半，输出价格低 40%。此外，OpenAI 强调 GPT-5.6 支持更可预测的 Prompt Caching，缓存读取享有 90% 折扣，这将大幅降低长上下文任务的实际成本。

速度突破

除了价格，速度是另一大杀手锏。官方数据显示，Sol 的速度最高可达 750 tokens/秒。

粗略换算，这相当于每秒处理 500-700 个汉字。这种速度将模型思考与生成的延迟大幅压缩，为用户带来近乎“秒回”的流畅体验。

评测表现：效率至上

此次评测虽主题未变，但覆盖面更广。在 Agents’ Last Exam（评估长时间专业工作流）中，GPT-5.6 Sol 得分 53.6，比 Fable 5 高出 13.1 分。即便仅开启 medium reasoning 模式，Sol 也能以约 1/4 的成本超越 Fable 5。OpenAI 指出，Terra 和 Luna 甚至能在约 1/16 的成本下超越 Fable 5。

尽管官方 Benchmark 并非最终定论，但它揭示了 OpenAI 的核心叙事：竞争不仅是比谁更强，更是比谁能以更低成本完成更多任务。

在 Artificial Analysis的综合评测中，GPT-5.6 完成任务消耗的 token 明显更少，尤其是推理 token 大幅减少。在单位 token 产出和运行速度上，其效率表现令人瞩目。

ChatGPT Work：Codex 的终极形态

凌晨的直播中，ChatGPT Work 与 GPT-5.6 并列核心，奥特曼甚至称其为 “really big deal”。从某种意义上说，GPT-5.6 更像是为 ChatGPT Work 量身定制的底座模型。

ChatGPT Work 本质上是 ChatGPT 内的一个 Agent，能够跨应用和文件行动，陪伴项目数小时，将目标转化为成品。

OpenAI 并未简单地将 Codex 改名，而是进行了战略拆分：
1. Codex 入口保留：继续面向开发者和技术人员，专注于代码、仓库、PR、Diff、Review 及多仓库项目等工程任务。
2. ChatGPT Work 抽象能力：将 Codex 背后更具普适性的能力——接任务、读上下文、调用工具、分步执行、交付结果——抽象出来，放入 ChatGPT Work，面向所有用户。

至此，ChatGPT 形成三大入口格局：Chat（对话）、Codex（编码）、Work（通用办公）。这标志着 ChatGPT 向“超级入口”迈出了关键一步。

02 实战体验：日常任务的“最佳拍档”

早期用户的反馈显示，GPT-5.6 Sol 的强项并非极限攻坚（与 Fable 5 仍有差距），而是日常工作的可靠性与亲和力。

• 用户画像对比：Sol 被形容为“有魅力、高效、才华横溢的同事”，适合长期协作；而 Fable 则像“拧巴的天才”，在特定领域（如定向调试、安全优化）表现卓越，但日常相处略显吃力。
• 协作模式：最佳策略或许是让 Fable 出谋划策，由 Sol 执行落地。

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