GitHub has added GPT-6.1 Terra to paid Copilot plans, with a gradual rollout and administrator controls. Test the work you actually do before changing your default.
Look in your account before changing the plan
GitHub announced GPT-6.1 Terra in Copilot on 26 October, covering Pro, Pro+, Max, Business and Enterprise. The rollout is gradual, so not seeing the model immediately does not establish an account fault. The announcement lists supported surfaces including IDEs, the CLI, cloud agent, Copilot app, github.com and mobile. Business and Enterprise administrators can control model access. Check your actual account and policy before buying anything to obtain it.
Availability and value are different questions
GitHub positions Terra for everyday coding and terminal work and describes a lower cost than GPT-6.1 Sol. It says billing follows provider list pricing under usage-based billing. Those statements do not give us a fixed UK invoice or prove that Terra will finish your task more cheaply. We have not independently tested the model. Supplier descriptions of early performance should not be read as a HubAI recommendation.
Give it one real, bounded job
A useful comparison could be a failing test you already understand. Save the starting commit, use the same instructions with your existing model and Terra, and keep the acceptance test unchanged. Record whether the fix passes, what the reviewer had to correct and the actual usage cost. One result is only a starting point; repeat on different tasks before deciding that a new default is worthwhile. Keep private code within your organisation’s approved environment.
Keep a fallback while you compare
Do not make a model switch and a workflow redesign at the same time. Keeping your current review and release steps makes it easier to see what changed. If Terra is missing, check the rollout and administrator settings first; do not assume that another subscription will solve it. If it is present, try it on reversible work before granting a wider job. The accompanying artwork is a conceptual model illustration, not a benchmark chart or evidence of the product interface.
HUBAI VIEWA new model in the picker is a reason to compare results, not to move a production workflow without checking it.
Buyer decision signal: GitHub model release · announced 26 October 2026
What to verify next
1Check the model picker and organisation policy.
2Compare the same task against your current model.
3Measure corrections and actual usage cost.
4Keep the existing review process and fallback.
Read the evidence
Capabilities, availability and prices can change. HubAI keeps analysis separate from the underlying official material.
01GitHub: GPT-6.1 Terra in Copilot · 26 October 2026Open source ↗
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