GPT models
Ziva offers GPT 6 Astra, GPT 6.1 Sol, and GPT 6 Luna. You can ask: “Add a coin counter to my simple 2D game. Explain each change in plain language.”
Choose a model and billing connection
Open the model picker above the message box. Use Advanced to find OpenAI’s models, then check the selected connection before sending.
- Hosted GPT 6.1 Sol and GPT 6 Astra require Pro or higher and use Ziva usage.
- Selecting hosted GPT 6 Luna in Advanced uses your Ziva plan allowance or usage credits at the displayed token prices.
- Ziva Baby stays free under its normal allowance, including when it uses Luna. Previous standalone free Luna selections ask you to choose again; they are never silently converted into paid selections.
- A ChatGPT or OpenRouter connection uses your own account, not your Ziva allowance. ChatGPT offers Astra 6, Sol 6.1, Terra 6.1, and Luna 6. To use GPT 6.1 Terra, select it in Advanced with your ChatGPT connection. It uses your ChatGPT/Codex subscription limits, not Ziva credits, and is not available through Ziva’s hosted connection. OpenRouter’s available GPT choice is GPT 6 Astra.
Privacy
Hosted GPT models use temporary retention. With ChatGPT or OpenRouter, the external account’s data policy applies; Ziva does not promise zero retention for those connections.
Optional help: chats using retired GPT 5.6 models
Continue an existing chat
GPT 5.6 Sol, Terra, and Luna are retired. Hosted chats that used them continue with these replacements:
| Previous model | Replacement |
|---|---|
| GPT 5.6 Sol | GPT 6.1 Sol |
| GPT 5.6 Terra | GPT 6.1 Sol |
| GPT 5.6 Luna | GPT 6 Luna |
Your conversation history stays in the chat. For a ChatGPT or OpenRouter connection, select the current model in the picker before continuing. You do not need to remove and reconnect your account.
Troubleshooting
If a saved free Luna selection asks you to choose again, restart Godot to refresh the model list. Select Ziva Baby to continue for free, or GPT 6 Luna in Advanced to use your Ziva allowance or credits. The refused request is not charged, and changing the selection does not erase the chat’s history.
If an old model is unavailable, choose a current model and check its displayed plan requirement and pricing, or use your connected external account. Your chat history stays available.
If a long chat asks to compact (shorten its history), compact it before retrying. If compaction fails, keep the chat and report the error to Ziva support rather than deleting its history.