Time to Bail · Boarding pass
Act. You can stay.
These models leave Copilot on November 16, 2026. Move to Claude Opus 5.5, GPT-6.1 Sol or GPT-6 Luna.[1]
Act means: change a setting or plan before the date. You can stay.
GitHub Copilot retires three models on November 16, 2026
On November 16, 2026, GitHub removes Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra from all Copilot experiences. Claude Opus 4.8 stays for individual subscribers on annual plans. Workflows and tools that name these models need a new one.
One email with the first steps. Nothing else.
Or add the date to your calendar: Apple or Outlook (.ics) · Google Calendar
Tick steps as you go. Your progress stays in this browser.
Check Copilot settings, prompt files, agent setups and scripts for these model names.
Use Claude Opus 5.5, GPT-6.1 Sol or GPT-6 Luna instead.
If you turned off the global default, turn on the new models in Copilot settings.
One email with the first steps. Nothing else.
Or add the date to your calendar: Apple or Outlook (.ics) · Google Calendar
| Deprecation date | November 16, 2026[1] |
|---|---|
| Models | Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra[1] |
| Where | All Copilot experiences: Chat, inline edits, ask and agent modes, code completions[1] |
| Suggested alternatives | Claude Opus 5.5 for both Claude models; GPT-6.1 Sol or GPT-6 Luna for GPT-5.6 Terra[1] |
| Exception | Claude Opus 4.8 stays for individual subscribers on annual plans[1] |
| Copilot Business and Enterprise | The alternatives are on by default, unless an admin turned off the global default or the model[1] |
| Announced | October 15, 2026[1] |
| Workflows and integrations that name these models | Must use a supported model by November 16, 2026[1] |
Check it yourself. Every fact above links here.
Time to bail on Copilot: Claude Opus 4.8, Opus 5, GPT-5.6 Terra? Act. You can stay. These models leave Copilot on November 16, 2026. Move to Claude Opus 5.5, GPT-6.1 Sol or GPT-6 Luna.
On our scale this is Act: change a setting or plan before the date. You can stay.
On November 16, 2026, GitHub removes Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra from all Copilot experiences. Claude Opus 4.8 stays for individual subscribers on annual plans. Workflows and tools that name these models need a new one.
Here are the facts we checked:
You can stay on GitHub Copilot. You have to change a setting or plan before the date.
Leaving is a choice here, not a must.
GitHub is the main source for this page. GitHub Copilot has not said more than what is listed here. If a fact is not on this page, we do not know it yet.
Workflows and integrations that name these models: Must use a supported model by November 16, 2026.
The date to remember is November 16, 2026. Make the change before then.
A few tips:
If the change affects your members or team, send one short email. Say what changes for them and when. Put the most important line first.
If there is a date, send a short reminder a few days before it. Keep a copy of the list you sent it to.
Listed for convenience. Not ranked. Not paid. These names come up in threads and reviews; that does not show where people moved.
Before you pay, check the price page of each tool yourself. Prices change, and we only list what our sources say.
No questions collected yet.
Thanks.
Run SaaS spend at work? Get these changes before the invoice
Arrivals · for builders
People on Copilot: Claude Opus 4.8, Opus 5, GPT-5.6 Terra can stay if they make the change. Some would rather leave. Get the playbook for this change, and list your product here.
Listing is free. An editor checks it. Not ranked. Not paid.
One email when we publish a checked change in the category you pick. No account needed.
One email on Mondays: the gates in the next 14 days, with the first step for each.