Model comparison
Claude Sonnet 5 vs GPT-6 Luna
List rate, corouter rate, context, and which ID to send for claude-sonnet-5 versus gpt-6-luna. A sample of 1 million input tokens plus 200 thousand output tokens is about $3.20 on corouter (input $1.60, output $1.60). A sample of 1 million input tokens plus 200 thousand output tokens is about $0.440 on corouter (input $0.200, output $0.240).
| Claude Sonnet 5 | GPT-6 Luna | |
|---|---|---|
| ID | claude-sonnet-5 | gpt-6-luna |
| Vendor | Anthropic | OpenAI |
| List input | $2.00 | $2.00 |
| corouter input | $1.60 | $0.200 |
| List output | $10.00 | $12.00 |
| corouter output | $8.00 | $1.20 |
| Cache read | $0.160 | $0.020 |
| Context | 1M | 1.1M |
Price gap
On output, GPT-6 Luna is lower: $1.20 on corouter versus $8.00 for Claude Sonnet 5, about 6.67×. Input is $0.200 versus $1.60.
Window and modalities
GPT-6 Luna lists a 1.1M window and Claude Sonnet 5 lists 1M. A larger window does not change the per-token rate. Prompts past the window need a split or a different ID. Claude Sonnet 5 is listed with these modalities: Chat, Vision, Code. GPT-6 Luna is listed with these modalities: Chat, Reasoning, Vision.
When to send claude-sonnet-5
Claude Sonnet 5 lists below Sonnet 4.6 on both input and output and keeps the 1M window plus the Code tag. Send claude-sonnet-5 for that newer Sonnet ID.
This ID uses the familiar messages JSON shape. The other side is gpt-6-luna from OpenAI. corouter is not affiliated with OpenAI or Anthropic.
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.
This ID uses the familiar chat-completions JSON shape. The other side is claude-sonnet-5 from Anthropic. corouter is not affiliated with OpenAI or Anthropic.
The same volume, two bills
A sample of 1 million input tokens plus 200 thousand output tokens is about $3.20 on corouter (input $1.60, output $1.60).
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, Claude Sonnet 5 or GPT-6 Luna?
- On output, GPT-6 Luna is lower: $1.20 on corouter versus $8.00 for Claude Sonnet 5, about 6.67×. Input is $0.200 versus $1.60.
- 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.