Most failures sit between the extension and the ChatGPT desktop app, not Chrome. A Web Store "This item is not available" is a region gate with no local fix.
“Couldn't check Lockdown mode” means ChatGPT failed to load your settings, so it can't say if Lockdown is on or your account is locked. Find which side failed.
Since October 15, 2026, both extensions act in your tabs. ChatGPT needs its desktop app and covers more browsers; Claude runs alone in Chrome but is paid-only.
A 403, 503, or 529 in Claude Code can come from your proxy, your account, Anthropic's or Amazon Bedrock's capacity, or a gateway in between. Run /status first.
Claude Code installs with a single command on macOS, Windows, and Linux using the native installer — no Node.js required. To use it you need a paid Claude plan (Pro at $20/month or higher) or a Claude Console account billed per API use. This guide covers every installation method, platform-specific steps, security warnings about fake installers, and fixes for the most common problems.
Read the tail after “account/read failed:”. In most reports timed out or failed clears with a background-server restart; 401 needs a new sign-in on that host.
In May 2026, 3.5 Flash was the first test for fast tool-heavy API work and 3.1 Pro Preview kept hard reasoning. Since Oct 8, the 3.5 ID routes to 3.6 Flash.
Google lists 1060 as a region code; (13), (1076), (1099) are generic errors and (1) isn't on its table. Four checks find the layer that failed.
GPT-6.1 Sol isn't in ChatGPT Chat or on Free and Go. On a paid plan, a stale Codex daemon, old CLI, or config override usually hides it from the picker.
Codex has no fixed reset day. Tibo's 28-day campaign has brought four global resets as of October 20, 2026; Settings → Usage shows whether one reached you.
Cancel and ask for a refund where you were billed: Dreamina, Apple, Google Play, or an independent Seedance site. Dreamina US refunds need 14 days and zero use.
Native transparent output kept curly hair and dandelion fuzz; every local background remover turned a wine glass solid gray. One run per subject, measured.
Use one shot when two characters trade short lines that fit one clip. Cut to separate shots for three or more speakers, long scenes, or lines you will rewrite.
Logo warped in an AI product video? Regenerate if the product drifts too, try an AI edit for a short flaw, or composite the real logo when it must match.
AI clip flickering in Premiere? Brightness pumping needs a deflicker pass, detail shimmer needs frame averaging, and redrawn shapes need a new take.
Seedance 2.0 pricing: Dreamina Basic is $15/month, $1.50 the first month by card or PayPal until October 23, 2026. Free trials exist; student discounts don't.
Krea's $0.06 excludes reference images. A 2K edit with a 1 MP reference is $0.08 on Krea 3 vs about $0.135 on Nano Banana Pro; a 2K reference erases most of it.
Only Claude Code npm builds 2.0.25 and older can throw this error, so the claude your shell runs is an old copy. Find it, replace or remove it, then verify.
The red notification only means compaction threw an error. The line shown with it names the cause, and each cause has its own recovery in Claude Code 2.1.301.
Claude Code's Error writing file is a label. Ctrl+O shows the real message: a changed file, a read-only folder, a cut-off tool call, or a false alarm.
“Error submitting message” is a Codex client banner, not a server code: the line under it names the cause. Check the chat before Retry, then apply that fix.
ChatGPT "Model not found" since Oct 14 has no official cause: try a new chat or browser, then support. In Codex, gpt-5.5 retired; use gpt-6.1-sol.
Google AI Pro gets Gemini 4 Argon in the Gemini app and AI Mode, and paid Pro also in Antigravity; Ultra adds AI Studio quota. App limits reset every 5 hours.
Gemini 4 Argon opened to paid API users on October 13 at $2/$10, doubling December 1. At matched effort it ties Opus 5.5 per task and costs 6.2x GPT-6.1 Sol.