Choosing this model
Selection advice by Y-API. The checks below are suggested evaluations, not published test results.
Where to start
Consider it as a second-pass reviewer for a consequential architecture change or difficult bug. Give it the original requirements, a proposed diff and concrete failure scenarios to challenge.
What to watch for
A premium model can still miss a defect or invent an explanation. Validate findings against code and tests. File inputs listed by OpenRouter do not prove that Y-API exposes Anthropic’s native document handling.
Model specifications
These are OpenRouter model-level specifications, not a Y-API compatibility test. A particular route may accept fewer input formats, parameters or tokens. Verify the features you need with a small request; a successful text response does not validate vision or tool calling.
- Context window
- 1,000,000 tokens
- Input
- Text · Image · File
- Output
- Text
- Listed on OpenRouter
- Parameters listed by OpenRouter
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstemperaturetool_choicetoolsverbosity
Estimate your cost
- Estimated credit consumed
- $17.50
- Estimated cash equivalent
- $1.75
Illustrative token budget, not measured usage or a quote. Includes input and output; excludes separate media charges, cache discounts and retries. Include billed reasoning tokens in your output budget where applicable. Actual billing follows usage returned by the service.
$1 paid adds $10 of credit. Cash equivalent = credit consumed ÷ 10; this is not the model publisher’s list price.
| Model | Estimated credit consumed | Estimated cash equivalent |
|---|---|---|
| Claude Opus 5 | $17.50 | $1.75 |
| Claude Sonnet 5 | $7.00 | $0.70 |
| GPT-5.6 Sol | $20.00 | $2.00 |
Use the API
These minimal, text-only requests use the exact Y-API model ID. They do not demonstrate image, audio, video, file or tool support. The output limit also needs room for reasoning; an empty answer with finish_reason=length can mean the budget was exhausted.
A task to try
Review this cache policy: private account responses use Cache-Control: public, max-age=300. Explain the risk and propose headers and regression tests.
Set the TOKEN environment variable to a key from your console. Run this on your server or locally; never expose a key in browser code or a public repository.
curl --fail-with-body --silent --show-error --max-time 120 \
'https://api.y-api.bestvirtualgoods.com/v1/chat/completions' \
-H "Authorization: Bearer ${TOKEN:?Set TOKEN first}" \
-H 'Content-Type: application/json' \
--data-binary @- <<'JSON'
{
"model": "anthropic/claude-opus-5",
"messages": [
{
"role": "user",
"content": "Review this cache policy: private account responses use Cache-Control: public, max-age=300. Explain the risk and propose headers and regression tests."
}
],
"max_tokens": 4096
}
JSONHow to evaluate the result
The review should identify cross-user data leakage, propose an appropriate private or no-store policy and test authenticated responses. Avoid accepting generic security advice without a failure mechanism.
Before you choose
Does Opus justify its higher cost than Sonnet?
Only a task-level comparison can establish that. Compare defects caught, accepted fixes, retries and total billed tokens. Reserve a more expensive reviewer for cases where it measurably changes the outcome.
Sources & scope
Technical facts come from the cited model page and, where available, its linked publisher card. A card describes that checkpoint; it is not proof of the weights a gateway serves. Prices come only from the Y-API catalog. We do not claim measured latency, uptime or benchmark scores for this endpoint.