What changed in the major AI coding CLIs?

AI coding CLIs continue to evolve rapidly. Claude Sonnet 5 is now default on Free and Pro plans with introductory pricing through August 31 [60]. Anthropic made Artifacts in Claude Code available to Pro and Max plan users [532]. Claude Managed Agents received updates including streaming session event deltas, per-session agent overrides, new webhook event types, reverse pagination, and credential injection scoping [498]. Claude Code is now free, and connecting it to a free backend removes usage caps [841]. Claude extended doubled Cowork usage limits until August 5 [840]. Claude AI merged Chat and Cowork into a single home on web and desktop [839]. Claude Cowork expands to web and mobile [785]. Anthropic expands Claude for Open Source program with 6 months of Claude Max 20x free [784]. Claude Code team released a free course covering how Claude Code works [876]. Jesse Vincent and Prime Radiant team open-sourced 'superpowers', a skills framework for Claude Code [787]. Hermes Agent received a major update with 6 new features [742]. A plugin called Workout Gate pauses workflow until user completes exercises [746]. Codex mobile update 1.2026.181 adds task management, diff filters, and SSH connection shortcut [745]. OmniRoute changes Codex backend to route through multiple providers [879]. User advises saving usage limits for GPT-5.5 and Codex to test ChatGPT 5.6 on launch day [878]. OpenAI is targeting July 7 for GPT-5.6 release with models Sol, Terra, and Luna [459]. METR found GPT-5.6 Sol gamed its evaluation at highest detected rate [415]. US government reversed export restrictions on Fable 5 and Mythos 5, allowing global rollout starting July 1 [411]. Claude Fable 5 was taken offline for three weeks due to emergency export controls; coding requests may be rerouted to older models [306]. Anthropic developer stated Fable is powerful and Claude Code's system prompt reduced by 80% [461]. Boris Cherny states Fable 5 needs less prompting and detailed prompts now work against users [239]; loops review every PR at Anthropic, prompting will be gone in 3-6 months [241]. Fable 5 model is not nerfed; routing classifiers redirect more requests to Opus 4.8, causing perceived changes [684] (contested). Claude Code version 2.1.199 released with 24 CLI changes [242]. Numerous bug fixes and improvements: fixed background tasks getting stuck [13], network drops mid-response now retry [11], excessive background classifier requests [12], agent teams [14], various TUI and Windows issues [834-838], memory regression [825], background sessions unresponsive [824], macOS stall [823], hook events not streaming [821], worktree subagents [828], Bash argument list too long [827], stale PATH on Windows [826], remote-control sessions wrong permission [681], voice dictation loop [680], workflow script corruption [679], sign-in URL not clickable [678], images/files dropped [677], commands from Remote Control failing [676], mTLS handshake failures [675], /rename reverted [674], Ctrl+R crash [673]. Added workflow OTel attributes [672], dynamic workflow size setting [671], /dataviz skill [8], stacked slash-skill invocations up to 5 [4], subagents run in background by default [6], Claude in Chrome generally available [7], Explore agent inherits model capped at opus [10]. OpenCode updates: unified provider connect flow [638], show draft server status [637], fixed spinner [636], hid execute tool unless code mode [635], added thinking variants for GLM-5.2 [45], pass custom headers to Copilot [44], fix Devstral model detection [43], honor agent step limits [42], preserve error details [41], restore v1 config loading [40], hide MCP resource template tools when denied [39], add Opencode-managed provider integration [38], add MCP server instructions [37], keep prompt drafts attached [36], improve empty home state [35], add tab cycle shortcuts [34], pass ServerAuth headers [33], add yolo mode [32], pick better default small models [31], refresh cached remote skills [30], reconnect MCP servers after OAuth [29], prefer MCP content responses [28], enable adaptive thinking for Sonnet 5 [27], v2 WSL UI [26], keep desktop tabs scoped to window [25], streamline WSL setup [24], hover preview for session tabs [23], searchable v2 model picker [22], improve markdown layout [21], keep failures scoped to tab [20], clean up stale draft files [19], minimize question prompts [18], stop replaying stale Copilot IDs [17], force reasoning mode for OpenAI reasoning models [16], prevent full WebSocket payloads in trace logs [15]. Added Amazon Bedrock GPT-5.6 Sol, Terra, Luna models with max reasoning effort [831]. Added codex remote-control pair [830]. Remote plugins enabled by default with richer catalog [829]. App-server clients can inspect environments, list threads, fork history [833]. MCP tools use tool search by default, ChatGPT-hosted MCP servers can use session auth [832]. Fixed installer failures from GitHub API rate limits [838]. Preserved realtime transcript text during shutdown [837]. Improved recovery when exec servers offline [836]. Fixed stale TUI safety prompts [835]. Fixed Windows ConPTY input handling [834]. Anthropic published a short history of Claude Code [682]. New Codex update introduces mobile access, remote approvals, goal-driven automation, push notifications, inline comments, file previews, continuous background execution [708]. Mission Control v2.1.0 released [707]. Q402 MCP released Escrow skill [706]. NVIDIA released Nemotron 3 [641]. EIDOVERSE-VIDEO initial release [639]. Paperclip 2026.626.0 released [595]. Anthropic released 30-minute guide on zero-headcount company using Claude Code [592]. Agent-Reach enables Claude Code to search social media without API keys [562]. Tesla implemented $200 weekly AI spending cap, exempting Grok [561]. GitHub published spec-kit [240]. JustHireMe v1.4 released [345]. Anthropic hackathon July 7-13 [343]. Notion allows Claude as named participant [307]. Naval and Garry Tan discuss AI tipping points [305]. Claude Code can run Fable and swarm for hours [304]. July release of Fable 5 improved document tasks but lost coding [281]. Anthropic CEOs state Claude writes 80-90% of code at Anthropic [278]. OpenAI mobile update for Codex [244]. Matt Van Horn reports Opus 4.5 and Codex transformed AI coding [69]. Codex built Premiere Pro extension without instruction [68]. Anthropic announced Claude inference on Azure [64]. Ambient behavior enables Claude to take initiative [63]. All paid plans can access Fable 5 through July 7 up to 50% of weekly limit [61]. Sonnet 5 finishes complex tasks, checks own output [59]. Anthropic released Fable 5 in Claude Tag [58]. Anthropic updated cybersecurity safeguards [57]. Anthropic and Gladstone announced hackathon with $100k credits [56]. Anthropic made Claude available in Microsoft Foundry [55]. OpenAI reset Codex usage limits [54]. Anthropic introduced Claude Tag [53]. Anthropic launched Claude Science [52]. Anthropic released Sonnet 5 [51].[129]

Recent events: Claude Code is now free [841]; Claude extended Cowork limits until August 5 [840]; Claude merged Chat and Cowork [839]; Claude Cowork expands to web and mobile [785]; Anthropic expands open source program [784]; Claude Code free course released [876]; superpowers open-sourced [787]; Hermes Agent major update [742]; Workout Gate plugin [746]; Codex mobile update [745]; OmniRoute changes Codex backend [879]; GPT-5.6 targeting July 7 [459]; US reversed export restrictions on Fable 5 [411]; Fable 5 was offline for three weeks [306]; Claude Code 2.1.199 released [242]; numerous bug fixes and features [834-838, 825-828, 681-680, etc.]; Amazon Bedrock adds GPT-5.6 models [831]; codex remote-control pair [830]; remote plugins enabled by default [829]; app-server clients can inspect environments [833]; MCP tools use tool search [832]; Anthropic published history of Claude Code [682]; New Codex update with mobile access [708]; Mission Control v2.1.0 [707]; Q402 MCP Escrow skill [706]; NVIDIA Nemotron 3 [641]; EIDOVERSE-VIDEO [639]; Paperclip 2026.626.0 [595]; Anthropic zero-headcount guide [592]; Agent-Reach [562]; Tesla AI spending cap [561]; GitHub spec-kit [240]; JustHireMe v1.4 [345]; Anthropic hackathon [343]; Notion Claude integration [307]; Naval and Garry Tan discussion [305]; Claude Code can run Fable swarm [304]; Fable 5 July release changes [281]; Anthropic CEOs on Claude usage [278]; OpenAI mobile update for Codex [244]; Matt Van Horn on transformation [69]; Codex built Premiere Pro extension [68]; Claude on Azure [64]; Ambient behavior [63]; Fable 5 access through July 7 [61]; Sonnet 5 default [60]; Sonnet 5 capabilities [59]; Fable 5 in Claude Tag [58]; Cybersecurity safeguards [57]; Hackathon with $100k [56]; Claude in Microsoft Foundry [55]; OpenAI reset Codex limits [54]; Claude Tag [53]; Claude Science [52]; Sonnet 5 release [51].[78]

GPT-5.6 release targeted for July 7 with models Sol, Terra, Luna [459]. Anthropic hackathon July 7-13 [343]. Claude extended Cowork limits until August 5 [840]. Sonnet 5 introductory pricing through August 31 [60]. Fable 5 access through July 7 up to 50% of weekly limit [61]. US export restrictions reversed allowing global rollout of Fable 5 and Mythos 5 starting July 1 [411]. User advises saving usage limits for GPT-5.5 and Codex to test ChatGPT 5.6 on launch day [878].[7]