Model comparison
GPT-6 Astra vs GPT-6 Luna
List rate, corouter rate, context, and which ID to send for gpt-6-astra versus gpt-6-luna. A sample of 1 million input tokens plus 200 thousand output tokens is about $2.00 on corouter (input $1.00, output $1.00). A sample of 1 million input tokens plus 200 thousand output tokens is about $0.440 on corouter (input $0.200, output $0.240).
| GPT-6 Astra | GPT-6 Luna | |
|---|---|---|
| ID | gpt-6-astra | gpt-6-luna |
| Vendor | OpenAI | OpenAI |
| List input | $10.00 | $2.00 |
| corouter input | $1.00 | $0.200 |
| List output | $50.00 | $12.00 |
| corouter output | $5.00 | $1.20 |
| Cache read | $0.100 | $0.020 |
| Context | 1.1M | 1.1M |
Price gap
On output, GPT-6 Luna is lower: $1.20 on corouter versus $5.00 for GPT-6 Astra, about 4.17×. Input is $0.200 versus $1.00.
Window and modalities
Both windows are 1.1M. GPT-6 Astra is listed with these modalities: Chat, Reasoning, Code, Vision. GPT-6 Luna is listed with these modalities: Chat, Reasoning, Vision.
When to send gpt-6-astra
GPT-6 Astra is the highest standard list rate in the GPT rows here. Send gpt-6-astra when the task is worth that output rate and you want the 1.05M window with image input.
Both are OpenAI IDs. The field you change is model: gpt-6-astra or gpt-6-luna.
When to send gpt-6-luna
GPT-6 Luna keeps the 1.05M window and lists above GPT-6 Sol on output, without the Code tag. Send gpt-6-luna when you want that ID rather than gpt-6-sol or gpt-6.1-sol.
Both are OpenAI IDs. The field you change is model: gpt-6-luna or gpt-6-astra.
The same volume, two bills
A sample of 1 million input tokens plus 200 thousand output tokens is about $2.00 on corouter (input $1.00, output $1.00).
A sample of 1 million input tokens plus 200 thousand output tokens is about $0.440 on corouter (input $0.200, output $0.240).
Questions
- Which output rate is lower, GPT-6 Astra or GPT-6 Luna?
- On output, GPT-6 Luna is lower: $1.20 on corouter versus $5.00 for GPT-6 Astra, about 4.17×. Input is $0.200 versus $1.00.
- Is corouter affiliated with the model vendors?
- No. corouter is not affiliated with OpenAI or Anthropic. Vendor names identify the model and the published list rate.
- How do you start billing?
- Create a console account and spend prepaid credits. The minimum top-up is $5. The API base is https://api.corouter.co. Put the ID you chose in the model field.