Model comparison
GPT-6 Astra vs Codex Auto Review
List rate, corouter rate, context, and which ID to send for gpt-6-astra versus codex-auto-review. A sample of 1 million input tokens plus 200 thousand output tokens is about $4.00 on corouter (input $2.00, output $2.00). A sample of 1 million input tokens plus 200 thousand output tokens is about $0.088 on corouter (input $0.040, output $0.048).
| GPT-6 Astra | Codex Auto Review | |
|---|---|---|
| ID | gpt-6-astra | codex-auto-review |
| Vendor | OpenAI | OpenAI |
| List input | $10.00 | $0.200 |
| corouter input | $2.00 | $0.040 |
| List output | $50.00 | $1.20 |
| corouter output | $10.00 | $0.240 |
| Cache read | $0.200 | $0.0040 |
| Context | 1.1M | 1.1M |
Price gap
On output, Codex Auto Review is lower: $0.240 on corouter versus $10.00 for GPT-6 Astra, about 41.67×. Input is $0.040 versus $2.00.
Window and modalities
Both windows are 1.1M. GPT-6 Astra is listed with these modalities: Chat, Reasoning, Code, Vision. Codex Auto Review is listed with these modalities: Chat, Reasoning, Code.
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 codex-auto-review.
When to send codex-auto-review
Codex Auto Review is a distinct review ID, not an alias of Luna, even though the list rate is in the same low band. Send codex-auto-review when the caller asks for that ID.
Both are OpenAI IDs. The field you change is model: codex-auto-review or gpt-6-astra.
The same volume, two bills
A sample of 1 million input tokens plus 200 thousand output tokens is about $4.00 on corouter (input $2.00, output $2.00).
A sample of 1 million input tokens plus 200 thousand output tokens is about $0.088 on corouter (input $0.040, output $0.048).
Questions
- Which output rate is lower, GPT-6 Astra or Codex Auto Review?
- On output, Codex Auto Review is lower: $0.240 on corouter versus $10.00 for GPT-6 Astra, about 41.67×. Input is $0.040 versus $2.00.
- 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.

