Model comparison
Claude Opus 5.5 vs Claude Haiku 4.5
List rate, corouter rate, context, and which ID to send for claude-opus-5-5 versus claude-haiku-4-5. A sample of 1 million input tokens plus 200 thousand output tokens is about $1.60 on corouter (input $0.800, output $0.800). A sample of 1 million input tokens plus 200 thousand output tokens is about $0.400 on corouter (input $0.200, output $0.200).
| Claude Opus 5.5 | Claude Haiku 4.5 | |
|---|---|---|
| ID | claude-opus-5-5 | claude-haiku-4-5 |
| Vendor | Anthropic | Anthropic |
| List input | $4.00 | $1.00 |
| corouter input | $0.800 | $0.200 |
| List output | $20.00 | $5.00 |
| corouter output | $4.00 | $1.00 |
| Cache read | $0.040 | $0.020 |
| Context | 1M | 200K |
Price gap
On output, Claude Haiku 4.5 is lower: $1.00 on corouter versus $4.00 for Claude Opus 5.5, about 4.00×. Input is $0.200 versus $0.800.
Window and modalities
Claude Opus 5.5 lists a 1M window and Claude Haiku 4.5 lists 200K. A larger window does not change the per-token rate. Prompts past the window need a split or a different ID. Claude Opus 5.5 is listed with these modalities: Chat, Vision, Reasoning, Code. Claude Haiku 4.5 is listed with these modalities: Chat, Vision.
When to send claude-opus-5-5
Claude Opus 5.5 is the lower Opus list rate in this catalog, with a cheaper cache read than Opus 5 and a Code tag. Send claude-opus-5-5 when you want that ID specifically.
Both are Anthropic IDs. The field you change is model: claude-opus-5-5 or claude-haiku-4-5.
When to send claude-haiku-4-5
Claude Haiku 4.5 is the short-window, low list-rate Claude row: 200K, chat and vision, no Code tag. Send claude-haiku-4-5 for volume that fits that window.
Both are Anthropic IDs. The field you change is model: claude-haiku-4-5 or claude-opus-5-5.
The same volume, two bills
A sample of 1 million input tokens plus 200 thousand output tokens is about $1.60 on corouter (input $0.800, output $0.800).
A sample of 1 million input tokens plus 200 thousand output tokens is about $0.400 on corouter (input $0.200, output $0.200).
Questions
- Which output rate is lower, Claude Opus 5.5 or Claude Haiku 4.5?
- On output, Claude Haiku 4.5 is lower: $1.00 on corouter versus $4.00 for Claude Opus 5.5, about 4.00×. Input is $0.200 versus $0.800.
- 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.