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各 AI プロバイダーのリリース、価格改定、提供終了を要約。アプリのニュースタブと同じフィードです。

コーディング· 1 件のディスカッション

Vercel introduces durable-harness for running coding-agent harnesses durably

Vercel announced durable-harness on X. In Vercel's words, it lets users run Pi, OpenCode, Codex, Claude Code, eve, fx or their own harness durably on Vercel, and agents automatically resume work after failures and run for hours, days or months.Anthropic· コーディング

Claude Code 2.1.305 fixes a 2.1.304 tool-search regression and adds a Linux sandbox setting

Claude Code v2.1.305, released October 20, 2026, per its release notes:OpenAI· インフラ

OpenAI API adds a 12-hour prompt caching option

OpenAI's API changelog for October 20, 2026 says developers can now choose 12-hour prompt caching in the API (labelled for v1/responses). It keeps shared instructions, tools and context cached longer, so cached-input pricing applies even when requests are hours apart. OpenAI says 12-hour cache writes cost 2.5x the input token price.Anthropic· コーディング· 1 件のディスカッション

Anthropic's Frontier Red Team: Claude found 493 attack-surface issues across 25 open-source projects

Anthropic published "Using Claude to reduce the attack surface of code" on Oct 20, 2026. Everything below is Anthropic's own account.GitHub Copilot· コーディング

GitHub Copilot CLI 1.0.101 adds structured output for workflow subagents and an approval-guidance setting

GitHub Copilot CLI 1.0.101, dated October 20, 2026, per its release notes:Anthropic· モデル· 2 件のディスカッション

Anthropic: an internal Claude model designed protein binders against scorpion neurotoxins

Anthropic published a research post on October 20, 2026. Everything below is Anthropic's own account.DeepSeek· インフラ

DeepSeek open-sources DeepInfer, its inference engine

DeepSeek has published DeepInfer on GitHub (deepseek-ai/DeepInfer) under the Apache-2.0 licence. The README calls it the inference framework that powers DeepSeek's large-scale production services. The release was shared on Hacker News on October 20. The details below are from the repository README.Meta· プロダクト

Redact reports hidden AI instructions in WhatsApp help pages

Redact, a privacy-services company, reports that WhatsApp's help pages contained text hidden from readers and meant for an AI, including instructions not to recommend a data protection regulator. The post was shared on Hacker News on October 19. What follows is Redact's account unless stated otherwise.Anthropic· コーディング

Claude Code 2.1.304 adds auto-mode setup, usage warnings and Code Review levels

Claude Code v2.1.304, released October 19, 2026, per its release notes:GitHub Copilot· インフラ

GitHub adds a REST API for Copilot model policies

GitHub's changelog announces generally available GET and PATCH REST endpoints to read and update Copilot model policies at four levels: enterprise, enterprise teams, enterprise apps and organizations (for example /orgs/{org}/copilot/model-policies).GitHub Copilot· モデル

GitHub Copilot retires a set of models across most experiences

GitHub's changelog says that as of October 19, 2026 it has deprecated a set of models across most Copilot experiences, including Copilot Chat, inline edits, ask and agent modes, and code completions. GitHub says the deprecations were announced on September 18, 2026.MiniMax· モデル· 3 件のディスカッション

MiniMax lists M3.1 Flash, an open-weight model

MiniMax's model release notes add MiniMax M3.1 Flash, dated October 19, 2026. MiniMax describes it as "an ultra-efficient open-weight model for everyday work". That is the vendor's own description.Anthropic· コーディング

Anthropic describes Scion, the in-house version control system it moved to from git

In an engineering post dated October 19, 2026, Anthropic says merges to its monorepo grew from about 2,500 to more than 30,000 a day, making source control the biggest development bottleneck. It says its team built Scion, an in-house version control system designed for always-online agents, and migrated off git in five months.GitHub Copilot· コーディング

GitHub Copilot CLI 1.0.100 adds a telemetry opt-out flag and sandbox changes

Copilot CLI 1.0.100, released October 19, 2026, per its release notes:OpenAI· モデル

Quanta: mathematicians assess an AI-produced proof of the "quasi-Riemann hypothesis"

Quanta Magazine published an analysis on October 19 of a result OpenAI announced on October 6, 2026, among 377 results in one announcement. OpenAI claimed the result settles the "quasi-Riemann hypothesis", a weaker version of the Riemann hypothesis. The article was shared on Hacker News.DeepSeek· モデル· 1 件のディスカッション

US orders federal civilian agencies to remove DeepSeek, including third-party tools built on it

The US Department of Homeland Security has ordered all federal civilian agencies to stop buying DeepSeek products and to remove them from their IT systems, according to Reuters (headline) and the news site MadRobot. Both reports were shared on Hacker News on October 19. DeepSeek had not commented, per those reports.コーディング

Security firm Norforge: exposed Cairn panels show AI agents hacking sites at scale

Norforge, a security firm, published findings on October 19 about publicly exposed control panels of Cairn, an open-source AI "problem-solving engine" that coordinates AI agents to probe and break into targets. The Verge's coverage, citing Norforge and Reuters, says one attacker used such agents to break into more than 100 websites with little human involvement. Both were shared on Hacker News.OpenAI· モデル· 2 件のディスカッション

OpenAI publishes "Advancing coding in low-resource programming languages"

OpenAI published a post on October 19, 2026 titled "Advancing coding in low-resource programming languages". Its summary says OpenAI is improving ChatGPT across low-resource programming languages, with new evaluations for software engineering, SQLite and COBOL migration. The description is OpenAI's own.Mistral AI· モデル

Mistral releases Timestral, a family of time-series forecasting models

Mistral released Timestral, its first family of time-series foundation models, on October 15, 2026. Its blog post was shared on Hacker News on October 19, where the thread had 585 points and 111 comments by October 20. The figures below are Mistral's own claims; the technical report has not been published yet.OpenRouter· モデル

OpenRouter lists Inception: Mercury 3

OpenRouter's model catalog added "Inception: Mercury 3" (inception/mercury-3) on October 16, 2026, with a context length of 1,000,000 tokens and no expiration date. That is a catalog listing, not an announcement from Inception.
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