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]. Anthropic embedded hidden code in Claude Code that sends user information to system prompts, targeting Chinese users [409] (corroborated). Anthropic updated cybersecurity safeguards after US government conversations [57]. Anthropic and Gladstone announced hackathon with $100k credits [56]. Anthropic made Claude available in Microsoft Foundry on Azure [55]. OpenAI reset Codex usage limits after investigating faster consumption [54]. Anthropic introduced Claude Tag for Slack [53]. Anthropic launched Claude Science for research [52]. Anthropic released Claude Sonnet 5 with planning and tool use [51]. All paid plans can access Fable 5 through July 7, up to 50% of weekly usage limit [61]. Sonnet 5 finishes complex tasks and checks own output [59]. Anthropic released Claude Fable 5 in Claude Tag [58] (corroborated). Ambient behavior enables Claude to take initiative [63]. Claude inference runs on Azure [64]. Codex built Premiere Pro extension without instruction [68]. Matt Van Horn reports Opus 4.5 and Codex transformed AI coding [69]. Anthropic CEOs state Claude writes 80-90% of code at Anthropic, revenue grew 10x, 130 engineers [278]. July release of Fable 5 improved document tasks (+34), expert text (+25), creative writing (+9) but lost frontend (-27) and coding (-18) [281]. Claude Code can run Fable and swarm for hours, ship code 100x faster [304]. Naval and Garry Tan discuss AI tipping points [305]. Upgrading from $20 to $200 Codex plan does not reset resets [535] (corroborated). Codex CLI 0.142.4 released with no user-facing changes [534] (corroborated). SEEDTHREE plant generator released [500]. NaraRouter provides free access to Claude Sonnet 4.5 and Haiku 4.5 [460]. Claude-BugHunter framework released [414]. Anthropic hackathon applications due Sunday [343].[134]

Recent weeks saw major releases: Claude Sonnet 5 launched as default model [60]; Claude Fable 5 released in Claude Tag [58]; Claude Code became free with unlimited usage via free backend [841]; Claude Cowork expanded to web and mobile [785]; Claude AI merged Chat and Cowork [839]; doubled Cowork limits extended to August 5 [840]; Anthropic expanded Open Source program [784]; Claude Code free course released [876]; 'superpowers' skills framework open-sourced [787]; Hermes Agent major update [742]; Codex mobile update [745]; OmniRoute for Codex backend [879]; GPT-5.6 models Sol, Terra, Luna appearing in Codex [459]; US reversed export restrictions on Fable 5 [411]; Fable 5 taken offline for three weeks [306]; Claude Code system prompt reduced by 80% [461]; Boris Cherny predicted prompting gone in 3-6 months [241]; Claude Code 2.1.199 released with 24 changes [242]; numerous bug fixes and features across Claude Code and OpenCode; Amazon Bedrock added GPT-5.6 models [831]; remote plugins enabled by default [829]; app-server clients can inspect environments [833]; MCP tools use tool search by default [832]; Anthropic published history of Claude Code [682]; Codex update with mobile access and remote approvals [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 July 7-13 [343]; Notion Claude integration [307]; Anthropic embedded code controversy [409]; cybersecurity safeguards [57]; hackathon with Gladstone [56]; Claude on Azure Foundry [55]; OpenAI reset Codex limits [54]; Claude Tag for Slack [53]; Claude Science [52]; Claude Sonnet 5 with planning [51]; Fable 5 access for paid plans [61]; ambient behavior [63]; Claude on Azure [64]; Codex built Premiere Pro extension [68]; Matt Van Horn on transformation [69]; Anthropic CEOs on internal usage [278]; Fable 5 July release benchmarks [281]; Claude Code 100x faster [304]; Naval and Garry Tan discussion [305]; Codex plan upgrade retains resets [535]; Codex CLI 0.142.4 [534]; SEEDTHREE [500]; NaraRouter free access [460]; Claude-BugHunter [414].[58]

OpenAI targets July 7 for GPT-5.6 release with models Sol, Terra, Luna [459]; user advises saving limits for testing [878]. Anthropic hackathon runs July 7-13 [343]. Fable 5 access for paid plans through July 7 [61]. US export restrictions reversed, global rollout starting July 1 [411]. Claude Sonnet 5 introductory pricing through August 31 [60]. Doubled Cowork limits until August 5 [840]. Anthropic developer stated Claude Code's system prompt reduced by 80% [461]; Boris Cherny predicts prompting will be gone in 3-6 months [241]. Fable 5 model routing classifiers may redirect more requests to Opus 4.8 [684] (contested). Anthropic improving AI agent memory with session handoffs [913]. Anthropic expanding Claude for Open Source program [784]. Claude Code free course available [876]. 'superpowers' skills framework open-sourced [787]. Hermes Agent with new features [742]. Codex mobile update [745]. OmniRoute for Codex backend [879]. NVIDIA Nemotron 3 [641]. EIDOVERSE-VIDEO [639]. Paperclip 2026.626.0 [595]. Agent-Reach [562]. GitHub spec-kit [240]. JustHireMe v1.4 [345]. Notion Claude integration [307]. Claude-BugHunter [414]. SEEDTHREE [500]. NaraRouter free access [460]. Anthropic hackathon applications due Sunday [343].[27]