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AI release notes

Official updates from Anthropic, OpenAI, Google, xAI, Mistral, DeepSeek and Meta, newest first. Open any update for a short AI summary and the full notes.

Compiled by the Toolstash team · Updated

  1. Anthropic · Claude Code

    Claude Code 2.1.178

    1 new13 fixes8 other

    Added Tool(param:value) syntax for permission rules to match a tool's input parameters (with * wildcard), e.g. Agent(model:opus) to block Opus subagents.

  2. Anthropic · Claude API

    We’ve retired the Claude Sonnet 4 model and the Claude Opus 4 model

    All requests to these models on the Claude API will now return an error. We recommend upgrading to Claude Sonnet 4.6 and Claude Opus 4.8 respectively. Researchers can request ongoing access through the External Researcher Access Program.

  3. OpenAI · Codex app

    ChatGPT for iOS

    Added a workspace file browser for previewing files and linking workspace paths into prompts. Added a directory picker for choosing a workspace folder when starting a new thread. Added controls to expand or collapse all diffs while reviewing changed files. Added MCP approval choices for allowing requested actions in the current chat or across chats. Added LaTeX rendering in Codex messages and plans. Improved status indicators for running threads, queued prompts, side chats, and subagents. Improved pairing and onboarding with clearer errors, manual pairing-code support, and more reliable host selection after pairing. Improved task-list recovery, reconnect state, host-specific refresh, and thread performance. Improved Codex profile sharing, activity history, and settings layout. Improved goal workflows with a composer shortcut, desktop-aligned goal message actions, and better resumed question handling. Improved assistant message actions, transcript layout, and public rate-limit names. Fixed stuck thread-list swipe actions, duplicate messages when reopening a new thread, spawned subagents appearing as top-level task rows, and misleading connection errors when sending prompts.

  4. Google · Gemini API

    Deprecation announcement: The following image generation models are being deprecated and will be shut down…

    Deprecation announcement: The following image generation models are being deprecated and will be shut down on August 17, 2026: Imagen 4 and Gemini 3 Image models: imagen-4.0-generate-001 imagen-4.0-ultra-generate-001 imagen-4.0-fast-generate-001 To migrate your code to newer stable or preview endpoints, refer to the Gemini deprecations page. Deprecation announcement: The following video generation models are being deprecated and will be shut down on June 30, 2026: Veo models: veo-2.0-generate-001 veo-3.0-generate-001 veo-3.0-fast-generate-001 Update your integration to either use the Veo 3.1 preview model IDs (veo-3.1-generate-preview, veo-3.1-fast-generate-preview) or the 3.1 GA models available through the Gemini Enterprise Agent Platform to avoid service interruptions. Deprecation announcement: The experimental GMP Contextual View tool (a fixed interface for Grounding with Google Maps outputs) will shut down on June 15, 2026:

  5. Anthropic · Claude Code

    Claude Code 2.1.177

  6. Anthropic · Claude Code

    Claude Code 2.1.176

    1 new18 fixes3 other

    Added footerLinksRegexes setting for regex-matched link badges in the footer row, configurable via user or managed settings.

  7. Anthropic · Claude Code

    Claude Code 2.1.175

    1 new

    Added enforceAvailableModels managed setting — when enabled, the availableModels allowlist also constrains the Default model (a Default that would resolve to a disallowed model now falls back to the first allowed model), and user or project settings can no longer widen a managed availableModels list.

  8. Anthropic · Claude Code

    Claude Code 2.1.174

    2 new11 fixes

    Added wheelScrollAccelerationEnabled setting to disable mouse-wheel scroll acceleration in fullscreen mode. [VSCode] Added usage attribution to the Account & usage dialog (/usage) showing cache misses, long context, subagents, and per-skill/agent/plugin/MCP breakdowns over the last 24h or 7d.

  9. Anthropic · Claude appsAnnouncement

    Access to Claude Fable 5 and Claude Mythos 5 suspended, plus 1 more change

    We've suspended access to Claude Fable 5 and Claude Mythos 5. We aim to return access as quickly as we can. When Claude writes a draft in chat or Claude Cowork (a report, a plan, a brief), it opens right beside your chat. Highlight the part you want changed, type the change, and Claude makes the edit right where you marked it. No switching apps, no re-describing paragraphs in chat.

  10. Google · Antigravity

    Slash command history, Models & Quota page, and TUI performance

    Replay slash command history with Up arrow, redesigned Models & Quota page, and statusline quota usage indicators.

  11. Anthropic · Claude Code

    Claude Code 2.1.173

    2 fixes

    Fixed Fable 5 model names with a [1m] suffix not being normalized — Fable 5 includes 1M context by default, so the suffix is now stripped automatically. Fixed a spurious "sandbox dependencies missing" startup warning on Windows when sandbox was enabled in settings.

  12. Anthropic · Claude API

    The code execution tool now supports code_execution_20260521, which discloses the 90-second per-cell…

    No beta header is required. The web search tool and web fetch tool now support web_search_20260318 and web_fetch_20260318, adding a response_inclusion parameter to drop consumed result blocks from the API response for agentic workflows.

  13. OpenAI · Codex app

    Usage resets and Browser Developer mode

    Added rate-limit reset banking for Plus and Pro users, including one free reset at launch and referral invitations for earning more during the current promotion. Eligible Business members can invite coworkers to earn shared workspace credits through a separate referral program. Added Developer mode for Browser use in Chrome and the Codex in-app browser. It gives Codex controlled Chrome DevTools Protocol (CDP) access for performance profiling and deeper debugging of network traffic, console output, runtime errors, and page state. Added the /init command to the app composer for creating project instructions with the same initialization workflow as the Codex CLI. Added customizable macOS Dock icons with light and dark Codex variants. Added Computer Use for Enterprise users outside the European Economic Area, the United Kingdom, and Switzerland. Added support for configuring per-app access controls for Computer Use on Windows. Added an Unread chats section to the command menu, with the most recently updated unread chat selected by default. Performance improvements and bug fixes. Made Browser use up to 2x faster through CDP and DOM snapshot optimizations that reduce browser round trips. Made command, browser, integration, and source activity summaries easier to understand, and improved how completed chats present files, automations, and other durable output. Improved plugin management by including workspace plugins, refreshing plugin state more reliably after installation or removal, and letting you upload a new version of an already-shared plugin without changing its access. Improved usage-limit errors with inline plan and workspace guidance, including reset timing when available. Added Cmd + Enter and Ctrl + Enter as shortcuts for submitting custom approval feedback. Fixed Browser use download handling and improved Developer mode recovery and diagnostics. Fixed scheduled automations so they honor the selected approval mode, and fixed manual project ordering, Browser tab dragging, MCP app sizing after right-pane transitions, and clickable ChatGPT thread mentions. Fixed issues affecting background agent tab restoration, commit and pull request message generation, sidebar pull request status updates, Codex Mobile QR pairing, remote-control MFA, remote SSH installation and connection, updater prompts, and overlay positioning at non-default zoom levels. Additional performance improvements and bug fixes.

  14. Google · Antigravity

    Quota Screen Redesign and PDF Support

    Quota screen redesign, PDF attachment support, new /btw slash command, and other bug fixes

  15. Google · Antigravity

    Initial subagent orchestration and standard Google AI model targets

    This release introduces per-server MCP timeout configurations and improves local connection error handling.

  16. Anthropic · Claude Code

    Claude Code 2.1.172

    2 new18 fixes10 other

    Added a search bar when browsing a marketplace's plugins in /plugin. Added model attribute to the claude_code.lines_of_code.count OTEL metric.

  17. Google · Gemini CLI

    Gemini CLI 0.46.0

    6 fixes5 other

    harden PTY resize against native crashes. prevent spam loop when preferredEditor is invalid.

  18. Anthropic · Claude API

    The GET /v1/environments/{id}/work endpoint, which lists pending work for a self-hosted sandbox, is now…

  19. Google · Gemini CLI

    Gemini CLI 0.45.3

    1 fix

    cherry-pick f08b4af to release/v0.45.2-pr-27749 to patch version v0.45.2 and create version 0.45.3.

  20. Anthropic · Claude Code

    Claude Code 2.1.170

    1 fix1 other

    Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Fable’s capabilities exceed those of any model we’ve ever made generally available. Update to version 2.1.170 for access. https://www.anthropic.com/news/claude-fable-5-mythos-5. Fixed sessions not saving transcripts (and not appearing in --resume) when launched from the VS Code integrated terminal or any shell that inherited Claude Code environment variables.

  21. Anthropic · Claude API

    Claude Fable 5 and Claude Mythos 5 use the tokenizer introduced with Claude Opus 4.7

    Compared to models before Claude Opus 4.7, the same text produces roughly 30% more tokens. The exact increase depends on the content and workload shape. Use the token counting API with model: "claude-fable-5" to measure your prompts under the new tokenizer. Claude Fable 5 runs safety classifiers on requests and during response generation. The stop_details.category field on refusal responses now includes "reasoning_extraction" on Claude Fable 5, returned when a request is blocked under Anthropic’s Terms of Service restrictions on reverse engineering or duplicating model outputs. On Claude Fable 5 and Claude Mythos 5, adaptive thinking is the only thinking mode: thinking: {"type": "disabled"} is not supported, and manual extended thinking budgets and assistant prefill are not supported (both return a 400 error). On Claude Fable 5 and Claude Mythos 5, thinking.display defaults to "omitted", the same as Claude Opus 4.8, Claude Opus 4.7, and Claude Mythos Preview; set display: "summarized" to receive readable thinking summaries. Claude Fable 5 requires 30-day data retention and is not available under zero data retention. Claude Managed Agents now supports scheduled deployments, letting you run sessions on a cron schedule without managing your own scheduler. Claude Managed Agents vaults now support environment variable credentials, so you can securely inject secrets into the agent’s sandbox for CLIs, SDKs, and other services that authenticate through environment variables. The Compliance API Activity Feed (GET /v1/compliance/activities) is now available on Claude Platform on AWS. The session.thread_* webhook events now include a session_thread_id field identifying the multiagent thread that triggered the event. We’ve released a Swift package in beta that adds Claude as a server-side LanguageModel in Apple’s Foundation Models framework.

  22. Anthropic · Claude appsAnnouncement

    Claude Fable 5 launch

    We launched Claude Fable 5, a Mythos-class model that we’ve made safe for general use.

  23. Anthropic · New modelAnnouncement

    New models: Claude Fable 5 and Claude Mythos 5

    We’ve launched Claude Fable 5 (claude-fable-5), our most capable model open to all customers, alongside Claude Mythos 5 (claude-mythos-5) for Project Glasswing participants. Both models support a 1M token context window by default, 128k max output tokens, and always-on adaptive thinking.

  24. OpenAI · Codex app

    Codex app

    Added Import to Codex flows for importing supported setup from Claude Code and Claude Cowork, including during onboarding. Revamped plugins screen with separate tabs, marketplace and category filters, keyboard navigation, and clearer install actions. Expanded Settings search to find options from more panels, including Git and pets. Performance improvements and bug fixes. Fixed goal timer overlap in narrow layouts. Reduced unread notifications while an active goal continues running. Kept review diff ordering consistent with the file tree. Improved window rendering on systems that don't support translucent backdrops, including Windows 10. Additional performance improvements and bug fixes.

  25. OpenAI · Codex app

    ChatGPT for iOS

    Added support for choosing a branch, creating a worktree, and running an environment setup script for new threads. Added a Codex profile screen with usage stats and token activity charts. Added /goal support for creating and managing goals from Codex Mobile. Added inline review comments when viewing changed files. Added support for asking in side chat from selected transcript text. Added support for editing the latest sent prompt. Improved attachment support on Windows hosts. Skills and plugins now appear directly inline in the composer. Improved side chat and queued prompt visibility while a thread is running. Improved message styling, navigation, tool activity, Face ID behavior, archived-thread browsing, and thread UI polish.

  26. Google · Antigravity

    Configurable MCP timeouts, artifact gutter line mapping, and Wayland clipboard

    Configurable MCP server connection timeouts, accurate line-numbered artifact gutters, and native Wayland clipboard support.

  27. Anthropic · Claude Code

    Claude Code 2.1.169

    4 new14 fixes12 other

    Added --safe-mode flag (and CLAUDE_CODE_SAFE_MODE) to start Claude Code with all customizations (CLAUDE.md, plugins, skills, hooks, MCP servers) disabled for troubleshooting. Added /cd command to move a session to a new working directory without breaking the prompt cache mid-session.

  28. Anthropic · Claude Code

    Claude Code 2.1.168

    1 other

    Bug fixes and reliability improvements.

  29. Anthropic · Claude Code

    Claude Code 2.1.167

    1 other

    Bug fixes and reliability improvements.

  30. Anthropic · Claude Code

    Claude Code 2.1.166

    2 new14 fixes5 other

    Added fallbackModel setting to configure up to three fallback models tried in order when the primary model is overloaded or unavailable; --fallback-model now also applies to interactive sessions. Added glob pattern support in deny rule tool-name position ("*" denies all tools); allow rules reject non-MCP globs, and unknown tool names in deny rules warn at startup.