# OpenAI发布GPT-5.5，DeepSeek V4开源模型突破长上下文成本瓶颈

- 来源：Rohan Paul (@rohanpaul_ai)
- 发布时间：2026-04-27 07:28
- AIHOT 分数：45
- AIHOT 链接：https://aihot.virxact.com/items/cmogfg5ep01insl5r6o43oygn
- 原文链接：https://x.com/rohanpaul_ai/status/2048544797330415841

## AI 摘要

OpenAI在ChatGPT和Codex中推出了GPT-5.5。DeepSeek发布了开源模型V4，其性能在竞技编程任务上首次媲美闭源模型，并具备100万token的上下文窗口。该模型论文的核心创新在于提出了一种大幅降低长上下文LLM成本、同时几乎不损失能力的新方法。此外，Anthropic首次大规模揭示了AI使用、生产力提升与人类对工作被替代的恐惧之间的关联。

## 正文

Today's edition of my newsletter just went out.

🔗 https://www.rohan-paul.com/p/openai-launched-gpt-55-in-chatgpt

🗞️ OpenAI launched GPT-5.5 in ChatGPT and Codex.

🗞️ DeepSeek releases V4， the first open-source model to match a closed model on competitive programming， and a huge 1M-context window

🗞️ DeepSeek paper's big idea is a new way to make very long-context LLMs much cheaper without giving up much ability.

🗞️ Anthropic just mapped the first large-scale link between AI use， productivity， and replacement fear.