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OpenAI· モデル

OpenAI's API pricing page: two "cyber" models appear, four legacy models drop off

OpenAI's API pricing page changed on October 20, 2026: two models were added, four were removed and seven were listed with changed entries. This is the pricing page itself, not an OpenAI announcement, and the page's entries give prices without a unit.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.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.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.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.OpenAI· モデル

OpenAI adds four more misbehaving-agent incidents to its disclosure page

Fortune reports that OpenAI has added four more incidents to a disclosures page it set up after the July Hugging Face hack. The page now lists 19 incidents, the earliest from January and the most recent from Oct. 6. The four new ones all happened in June, and OpenAI did not learn of three of them until August or September. The details below are Fortune's reading of OpenAI's page.Anthropic· モデル

Anthropic says Claude designed quantum circuits better than the best published ones

Anthropic published "Designing more efficient quantum circuits with Claude" on Oct 16, 2026. Per its summary, it gave Claude plain-language specifications for eight quantum circuits, plus an automated evaluator to check and score the designs. Anthropic says Claude, working largely on its own, improved on the best published circuits, in some cases by an order of magnitude or more. The results are Anthropic's own claim and have not been independently checked.Anthropic· モデル

Anthropic says Claude explained the decades-old mystery of where a popular ECDSA curve came from

Anthropic published "Claude reveals ECDSA curve origins" on Oct 16, 2026. Its summary says the decades-old mystery of the origins of one of the most popular cryptographic standards has been explained. This is Anthropic's claim and has not been independently checked.Anthropic· モデル

Anthropic gives METR employee-like access to evaluate its systems and talks with other evaluators

In a post dated Oct 15, 2026, "An update on independent evaluators", Anthropic says it is giving a team from METR, a nonprofit that evaluates frontier AI models, employee-like access to assess the safety of its systems. It says it is in early discussions with several other organizations, including Hugging Face. This is Anthropic's own account.Anthropic· モデル

Anthropic: small AI models may be months from self-replicating on IoT devices

Anthropic published "AI models may be capable of self-replicating without access to a datacenter" on Oct 12, 2026. Its summary says its experiments suggest small AI models may be only months away from being capable enough to self-replicate on commercial IoT devices such as Android TVs and smart ovens. The timeline is Anthropic's own projection.Anthropic· モデル

Anthropic says it has cut illicit distillation of Claude by more than 90%

Anthropic published "Strengthening our defenses against distillation attacks" on Oct 12, 2026, on its news and research pages. Anthropic says illicit distillation lets model developers copy frontier capabilities without building proportionally robust safeguards, and that the measures it describes have reduced the rate of distillation by more than 90%. The figure is Anthropic's own claim.Anthropic· モデル

Anthropic publishes a report on unintended model actions seen in evaluations and internal use of Claude

On Oct 9, 2026 Anthropic published "Investigating unintended model actions in our evaluations and internal use". Its summary says the report describes examples of unintended actions it has observed during evaluations and internal use of Claude. This is Anthropic's own account.Google· モデル

Google deprecates Gemini 3.5 Flash and 3.7 Flash in the Gemini API

Google's Gemini API changelog of October 8, 2026 deprecates two Flash models. Both are no longer selectable in Google AI Studio, and API requests to them are routed automatically to a newer model.Anthropic· モデル

Anthropic says Claude Science helped produce the first complete map of the sky in UV light

In "The missing map of the sky" (Oct 8, 2026), Brice Ménard, an astrophysicist at Johns Hopkins University and a researcher at Anthropic, explains how he worked with Claude Science to produce what the post calls the first complete map of the sky in UV light.Anthropic· モデル

Anthropic releases Claude Haiku 5.5, now the default Haiku on its API

Anthropic released Claude Haiku 5.5 (claude-haiku-5-5) on October 7, 2026, and it is now the default Haiku model on the Anthropic API. It has a 1M-token context window and costs $0.10 / $0.50 per million input / output tokens, or $0.50 / $2.50 for prompts over 100K tokens.