Model comparison
GPT-6.1 Sol vs GPT-6 Luna
List rate, corouter rate, context, and which ID to send for gpt-6.1-sol versus gpt-6-luna. A sample of 1 million input tokens plus 200 thousand output tokens is about $0.400 on corouter (input $0.200, output $0.200). 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-6.1 Sol | GPT-6 Luna | |
|---|---|---|
| ID | gpt-6.1-sol | gpt-6-luna |
| Vendor | OpenAI | OpenAI |
| List input | $2.00 | $2.00 |
| corouter input | $0.200 | $0.200 |
| List output | $10.00 | $12.00 |
| corouter output | $1.00 | $1.20 |
| Cache read | $0.020 | $0.020 |
| Context | 1.1M | 1.1M |
Price gap
On output, GPT-6.1 Sol is lower: $1.00 on corouter versus $1.20 for GPT-6 Luna, about 1.20×. Input is $0.200 versus $0.200.
Window and modalities
Both windows are 1.1M. GPT-6.1 Sol is listed with these modalities: Chat, Reasoning, Code, Vision. GPT-6 Luna is listed with these modalities: Chat, Reasoning, Vision.
When to send gpt-6.1-sol
GPT-6.1 Sol matches the GPT-6 Sol list rate and is a separate model ID. Send gpt-6.1-sol when the client names that ID rather than gpt-6-sol.
Both are OpenAI IDs. The field you change is model: gpt-6.1-sol 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-6.1-sol.
The same volume, two bills
A sample of 1 million input tokens plus 200 thousand output tokens is about $0.400 on corouter (input $0.200, output $0.200).
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-6.1 Sol or GPT-6 Luna?
- On output, GPT-6.1 Sol is lower: $1.00 on corouter versus $1.20 for GPT-6 Luna, about 1.20×. Input is $0.200 versus $0.200.
- 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.