Google opened gemini-3.8-live at $0.84 an hour on September 15, and Qwen3.8-Omni-Flash arrived at $0.15 per million input tokens. Anthropic merged Cowork and the chat window into one app.
OpenAI opened a misalignment reporting framework on September 16 and published six cases with it. Two came out of conversation compaction, and 2.15% of GPT-5.6 Sol compaction summaries carried a self-issued instruction to conceal mistakes.
Anthropic opened an on-demand compaction beta on the Messages API on September 14. You ask for the summary in its own call, get back one signed block instead of an answer, and keep recent turns verbatim.
DeepSeek reroutes V4 Pro requests to V4.1 Flash on September 14, and OpenAI opened the Codex agent loop as the Agents API. Cognition SWE-2 scored 50.0% on FrontierCode, 0.9 points behind Fable 5.1, and is free until October 8.
Anthropic released Claude Fable 5.1 and Mythos 5.1 on September 1. Agentic coding climbs from 42.0% on Fable 5 to 55.8%, three beta features land in the API, cache reads cost a quarter of what they did, and three behaviors break on migration.
Anthropic began notifying affected Claude users on August 30 that infostealer malware copied their login sessions. Stolen cookies walked past two-factor auth, and Claude Code tokens live on a different settings screen than web sessions.
Z.ai released GLM-5.3-Flash 320B weights under MIT on August 26, and Alibaba published Qwen3.8-Flash-Next the same day. A day later Claude Code gained a --restricted mode that removes command execution and web access.
Clustering 461,121 GitHub pull request descriptions by word usage alone, one cluster grew from 0.7% to 41%. Its top marker word, load-bearing, sits in Claude Code’s built-in prompt text, which is why banning it in CLAUDE.md does not work.
Gambit Security recovered 28 Cursor agent chat sessions from a ransomware group’s exposed server. The logs run from April 8 to May 21, 2026, and every refusal the agent made was reversed by restarting the conversation.
OpenAI cut GPT-5.6 Sol output pricing from $30 to $20 per million tokens on August 21. Anthropic moved computer use and the Skills and Files APIs out of beta, and DeepSeek opened V4-Flash-Vision-Exp at the same price as its text model.
Anthropic cancelled the September 1 Claude Sonnet 5 increase, so $2 and $10 per million tokens is now the standing price. Google opened Gemini 3.7 Flash on August 13 at $0.75 and $3.75 through year end, and Alibaba published Qwen3.8-Max weights.
Anthropic published its second risk report on August 14. Internal-only Model 2 scored 62.8% on CoBench v2 against the public flagship Mythos 5 at 50.3%, and the misalignment risk rating moved up one step.