GPT-6.1 Terra in GitHub Copilot
OpenAI - Versatile
In GitHub Copilot, GPT-6.1 Terra costs $1 per 1M input tokens and $5 per 1M output tokens, billed as AI credits at $0.01 each. A typical daily-coding request works out to about 1.2 credits (about $0.01) with auto model selection on. Rates verified against GitHub's rate sheet on 2026-11-09.
Token rates
- Input / 1M
- $1.00
- Cached input / 1M
- $0.05
- Output / 1M
- $5.00
- Cost per credit
- $0.01
Cache writes bill at $1.25/1M tokens (Anthropic models).
Requests above 272,000 input tokens bill at the long-context tier ($2.00 in / $7.50 out per 1M).
Credits per request
Defined workload baskets, not measured tasks, with auto model selection on.
| Workload | Credits (auto on) | Credits (auto off) | Cost |
|---|---|---|---|
| Short chat turn | 0.6 | 0.7 | $0.01 |
| Daily coding request | 1.2 | 1.4 | $0.01 |
| Agent session step | 4.1 | 4.5 | $0.04 |
At about 1.2 credits per daily-coding request, GPT-6.1 Terra ranks #7 of 28 current models by cost, about 9.8x the cheapest (GPT-6 Luna).
Requests per plan allowance
Daily-coding requests the included monthly credits buy, before any overage.
| Plan | Credits / month | Requests |
|---|---|---|
| Copilot Pro | 1,500 | 1,207 |
| Copilot Pro+ | 7,000 | 5,636 |
| Copilot Max | 20,000 | 16,103 |
| Copilot Business | 1,900 | 1,529 |
| Copilot Enterprise | 3,900 | 3,140 |