GPT-6 Luna in GitHub Copilot
OpenAI - Lightweight
In GitHub Copilot, GPT-6 Luna costs $0.1 per 1M input tokens and $0.5 per 1M output tokens, billed as AI credits at $0.01 each. A typical daily-coding request works out to about 0.1 credits (about $0.00) with auto model selection on. Rates verified against GitHub's rate sheet on 2026-09-28.
Token rates
- Input / 1M
- $0.10
- Cached input / 1M
- $0.01
- Output / 1M
- $0.50
- Cost per credit
- $0.01
Cache writes bill at $0.13/1M tokens (Anthropic models).
Requests above 272,000 input tokens bill at the long-context tier ($0.20 in / $0.75 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 | 0.1 | 0.1 | $0.00 |
| Daily coding request | 0.1 | 0.1 | $0.00 |
| Agent session step | 0.4 | 0.5 | $0.00 |
At about 0.1 credits per daily-coding request, GPT-6 Luna ranks #1 of 31 current models by cost, about 1x 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 | 11,820 |
| Copilot Pro+ | 7,000 | 55,161 |
| Copilot Max | 20,000 | 157,604 |
| Copilot Business | 1,900 | 14,972 |
| Copilot Enterprise | 3,900 | 30,732 |