AI news: week of Sep 21–27, 2026

Headlines

• 25 SeptMicrosoft Microsoft 365 Copilot adds Home, Code and the Autopilot agentHome puts chat, Cowork and Office apps in one place; Code builds small apps and automations from a description; Autopilot is a persistent agent heading to private preview.
• 25 SeptOther Alibaba says Qwen 4 is in training and maps out larger Qwen modelsAt its Apsara Conference, Alibaba said Qwen 4 is being trained and outlined a roadmap for Qwen 4.5 and Qwen 5 at a projected 5 to 10 trillion parameters. No release date was given.
• 23 SeptAnthropic Anthropic says Claude found a previously undescribed enzyme systemClaude agents searching a DNA database flagged a reverse-transcriptase system linked to CRISPR-like repeats; human scientists then began testing it in the lab. A preprint is on bioRxiv.
• 23 SeptMeta Meta Connect 2026: VR Glasses, audio-only Ray-Bans and Muse on glassesMeta announced Meta VR Glasses for spring 2027 at $1,299.99, its first camera-free Ray-Ban Meta Audio glasses, and plans to bring its Muse agent to AI glasses in the coming months.
• 22 SeptAnthropic Anthropic releases Claude Opus 5.5The first Claude 5.5 model performs at the level of Claude Fable 5.1 on most work, according to Anthropic, and costs 40% less to run than Opus 5.
• 22 SeptOpenAI OpenAI adds GPT-6 Sol and GPT-6 Luna to the APIThe two cheaper GPT-6 models join GPT-6 Astra, with API prices cut by half compared with the GPT-5.6 Sol and Luna promotional rates.
• 21 SeptxAI xAI releases Grok 4.7xAI's new model for coding and knowledge work is served at the same price and speed as Grok 4.6, from $2 per million input tokens, in Cursor, Grok Build and the Grok API.

Usage resets

Completed and reported resets, announcements and banked resets. Only Completed entries count as a finished reset. Full monthly logs: Codex resets in September 2026 · Claude resets in September 2026.

• 26 SeptCodex Codex reset announced on Sep 26, 2026, 21:41 UTCMore resets promised for the following week. No exact date or rollout confirmation was given.
• 26 SeptCodex Codex reset on Sep 26, 2026 (completed)Tibo confirmed that all resets had propagated following the outage. The time shown is the confirmation post, not an exact reset execution time.
• 26 SeptCodex Codex reset announced on Sep 26, 2026, 00:07 UTCA reset was promised for paid Codex and ChatGPT Work users after service recovery. Completion was confirmed in a later post on 26 September.
• 22 SeptCodex Codex banked reset on Sep 22, 2026A saved reset was announced for Plus, Pro and Business accounts alongside the new model release.
• 22 SeptClaude Claude banked reset on Sep 22, 2026Redeemable reset offered; claim by 22 October 2026.
• 22 SeptCodex Codex reset announced on Sep 22, 2026Tibo said the promised Tuesday reset was coming soon. The saved reset was announced later that day.

Announcements on X

Our one-line summaries of selected posts, each linked to the original. Not the full account timelines.

• 25 SeptClaude The submission portal accepts remote MCP connectors and bundled plugins.@ClaudeDevs · View on X
• 25 SeptClaude Claude opens a portal for plugin submissions, reviews and usage information.@ClaudeDevs · View on X
• 25 SeptClaude Wrap-up availability varies by plan and uses the existing weekly allowance.@ClaudeDevs · View on X
• 25 SeptClaude Claude Code can wrap up work when session limits are reached.@ClaudeDevs · View on X
• 25 SeptClaude A calculator helps estimate task costs when moving to Opus 5.5.@ClaudeDevs · View on X
• 25 SeptClaude ClaudeDevs shares Claude FM, a music stream for focused work.@ClaudeDevs · View on X
• 25 SeptClaude An interactive camera-lens experiment features in Claude’s Opus showcase.@claudeai · View on X
• 25 SeptClaude Claude highlights a Three.js stream scene built with Opus 5.5.@claudeai · View on X
• 24 SeptClaude API billing resumes for some safeguard-blocked requests in specified categories.@ClaudeDevs · View on X
• 24 SeptClaude Cloud-session credits are optional and are spent before normal subscription usage.@ClaudeDevs · View on X
• 23 SeptClaude Claude Code Projects adds support for running threads locally.@ClaudeDevs · View on X
• 23 SeptClaude Projects access expands to more users while earlier projects are migrated.@ClaudeDevs · View on X
• 23 SeptClaude Cloud sessions can be started from Claude’s web, mobile, desktop or CLI interfaces.@ClaudeDevs · View on X
• 23 SeptClaude Cloud sessions leave preview with introductory credits for existing subscribers.@ClaudeDevs · View on X
• 23 SeptClaude Claude shares Marketplace browsing and submission links.@claudeai · View on X
• 23 SeptClaude Claude Marketplace brings together connectors, agents and service partners.@claudeai · View on X
• 23 SeptClaude ClaudeDevs explains its work to improve the website’s performance.@ClaudeDevs · View on X
• 22 SeptClaude A practical Opus 5.5 guide covers task handoffs and long-running work.@ClaudeDevs · View on X
• 22 SeptClaude An Opus experiment reconstructs the setting of Apollo 8’s Earthrise photograph.@claudeai · View on X
• 22 SeptClaude Early Opus 5.5 experiments include a watermelon story.@claudeai · View on X
• 22 SeptClaude Claude describes external evaluations and alignment testing for Opus 5.5.@claudeai · View on X
• 22 SeptClaude Claude announces Opus 5.5 as the first model in its new family.@claudeai · View on X

Claude Code releases (4)

• 25 SeptClaude Code 2.1.283Added x-claude-code-prompt-id to the gateway hint headers so LLM gateways can group the requests that serve one user prompt; opt in with CLAUDE_CODE_GATEWAY_HINT_HEADERS=1 ·…
• 24 SeptClaude Code 2.1.282Added a maxProseWidth setting that caps the width of Claude's prose in wide terminals while tables and code blocks keep the full width ·…
• 23 SeptClaude Code 2.1.281Added Claude apps gateway support for newer Claude Desktop keys in desktop policy blocks, including blockReadsOutsideWorkingDirectories and disableBypassPermissionsMode · Added assume_role on Claude apps…
• 22 SeptClaude Code 2.1.280Added Claude Opus 5.5 (claude-opus-5-5), now the default Opus model — 1M context, $4/$20 per Mtok with $0.20/Mtok cache reads · Added mouse support…

Claude Code changelog

Codex CLI releases (4)

• 26 SeptCodex CLI 0.157.1Chores · Release highlights could not be determined: the supplied PR index is empty, and the GitHub tag comparison returned 404. · Changelog
• 25 SeptCodex CLI 0.157.0Added GPT-6 Sol and Luna, including Amazon Bedrock support and migration prompts for older models. (#47332, #47347) · Enabled fullscreen transcripts by default and…
• 23 SeptCodex CLI 0.156.1Choose GPT-6 Sol or GPT-6 Luna from the model picker. The rate-limit switch prompt now recommends GPT-6 Luna. (#47405) · Changelog · 47405 [hotfix…
• 22 SeptCodex CLI 0.156.0Choose an optional fullscreen UI with /tui for your next launch, including transcript search, mouse selection, and right-click copying. (#46732, #46734, #46883, #46895) ·…

Codex CLI changelog