Codex credits vs GitHub Copilot AI credits
Both are token-metered credit units that repackage direct API rates, but the unit sizes differ: 1 Codex credit = $0.04 and 1 GitHub Copilot AI credit = $0.01, so 1 Codex credit equals 4 Copilot credits. For the same model and workload you are billed the same dollars, just a different credit count. Verified 2026-08-03.
| Codex credits | GitHub Copilot AI credits | |
|---|---|---|
| Credit value | $0.04 | $0.01 |
| GPT-5.6 Sol, credits / 1M input | 125 ($0.04 ea) | 500 ($0.01 ea) |
| GPT-5.6 Terra, credits / 1M input | 50 ($0.04 ea) | 200 ($0.01 ea) |
| GPT-5.6 Luna, credits / 1M input | 5 ($0.04 ea) | 20 ($0.01 ea) |
| Underlying price | OpenAI API list | model API list |