Pick one AI seat this week — run a 7-day test — cancel the rest. Day-7 kill checklist →

ONE SEAT · 7-DAY TEST · CANCEL THE REST

Pick one AI seat this week.
Cancel the rest on evidence.

Concrete decision cards for ChatGPT, Claude, Cursor, and Midjourney: who should pay this month, a Mon–Fri protocol, what burns money, and when to walk away — so you don’t stack three subscriptions by accident.

Leave first — cancel stacked AI seats

THIS WEEK’S JUDGMENT

Three decisions with numbers — not seat wallpaper.

Writing (7-day test): keep one ChatGPT Plus-class seat for general drafts. Hand long careful docs to Claude. If Friday’s meter shows agent toys and zero shipped artifacts, downgrade — don’t add a third writer.

Coding (one agent rule): don’t multi-home three coding agents. Pay for Cursor only if you close a multi-file PR with it this week. Autocomplete + GitHub gravity? Stay on Copilot — trial Claude-in-Copilot before a second seat. Copilot + Cursor + Claude Max on the same tickets is the quiet $100+/mo hole.

Images (kickoff week only): buy Midjourney Fast hours for a named campaign kickoff, then pause. Need decks tonight or images inside chat? Use Canva or ChatGPT Images — not an always-on GPU plan.

Before any upgrade: run the Day 1 / Day 7 / Day 30 kill checklist. Prefer month-to-month until three consecutive weeks of real usage show up. Stress-test “AI make money” pitches on Money Claims before you buy a course.

Updated 2 Oct 2026 · Next: Cursor vs Copilot (don’t buy three) · metered stack · one-seat tip · then Money Claims.

AI Frontier

What changed · should you switch · money/risk

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Frontier2026-10-12

Meta Muse Wonder Full is $50 Muse Code only - API stays at Opus-parity Wonder

Try: if you already live in a terminal agent and want a cheap second opinion, trial Muse Code Everyday ($5) for one week on 5 real tickets against your primary agent - cancel before renewal unless it wins. Avoid: paying Power ($50) or Maximum ($200) just for Wonder Full if you need it in CI/product pipelines - Full is not in the API, and the sub key is CLI-only. Avoid: switching Opus 5.5 API traffic to Wonder on price alone - same $4/$20 list. Next: (1) do not add a third agent seat beside Claude/Cursor/Codex; (2) if you trial Muse Code, turn Contributor mode off if you do not want training on your prompts; (3) re-verify https://dev.meta.ai/products/muse-code and https://dev.meta.ai/docs/muse-code/subscriptions on ship day. last-verified 2026-10-13.

Frontier2026-10-12

GPT-5.5 leaves ChatGPT/Work/Codex Oct 14 - API stays, Copilot follows Oct 19

Try: if you pin gpt-5.5 in Codex (ChatGPT sign-in), Work defaults, custom agents, or scheduled tasks, switch before Oct 14 - paid to gpt-6-sol (or gpt-6.1-sol when that is your Sol), Free/Go desktop to gpt-6-luna when available. Search configs for the literal string gpt-5.5 this week. Avoid: treating this as an OpenAI API shutdown; assuming Sol/Luna appear in ChatGPT Chat (docs: Work and Codex only); waiting for Copilot's Oct 19 drop if your break is Codex/Work on the 14th. Next: (1) ChatGPT/Codex pins by Oct 14; (2) Copilot GPT-5.5 → GPT-5.6 Sol by Oct 19 (Pro: verify Terra if Sol is unavailable); (3) Business/Enterprise Copilot admins confirm model policy enables the replacement; (4) re-verify learn.chatgpt.com/docs/models and the GitHub 2026-09-18 changelog on ship day. last-verified 2026-10-12.

Frontier2026-10-10

Devin SWE-2 free window ends mid-Oct: budget the $3/$15 meter

Try: if Devin Desktop/CLI is already your primary agent surface and SWE-2 is your default, burn the free window on real multi-file tickets this week (budget Oct 15 docs / Oct 16 marketing). Measure tokens + finished PRs so you know what list rates will cost. Avoid: adding Devin as a third seat beside Cursor + Copilot just to "use the free SWE-2" — the free window ends mid-Oct and the $3/$15 list meter is not a free forever seat. Don't assume Enterprise ACU 75% off through Dec 31 applies to self-serve. Next: (1) budget as if Oct 15; (2) after the cliff, stay on cheaper models inside quota, pay list on SWE-2, or keep one primary agent elsewhere; (3) re-verify https://docs.devin.ai/desktop/models and https://devin.ai/pricing before you renew. last-verified 2026-10-12.