Find boundary errors in this TypeScript function. Provide a minimal fix and tests for nulls, repeated calls and errors. Code: [paste code]
USER MESSAGECode repair
Validate a minimal code change against explicit boundary cases.
No matching models
Explore all modelsClaude Opus 4.7 supports adaptive reasoning and text and image inputs; the vendor now lists it as a legacy model.
{
"model": "claude-opus-4-7",
"max_tokens": 1024,
"messages": [
{
"role": "user",
"content": "A quiet mountain lake at sunrise, soft morning light."
}
],
"stream": true
}Your next idea starts here.
Run the model to preview your result.The example follows your Playground parameters.
curl --no-buffer --request POST 'https://newrouters.com/v1/messages' \
--header 'Content-Type: application/json' \
--header "x-api-key: $MODEL_API_KEY" \
--header 'anthropic-version: 2023-06-01' \
--data '{
"model": "claude-opus-4-7",
"max_tokens": 1024,
"messages": [
{
"role": "user",
"content": "A quiet mountain lake at sunrise, soft morning light."
}
],
"stream": true
}'Set MODEL_API_KEY in your environment. Keep your secret key on the server. Full documentation ↗
curl 'https://newrouters.com/v1/messages' \
-H "Content-Type: application/json" \
-H "x-api-key: $MODEL_API_KEY" \
-H "anthropic-version: 2023-06-01" \
--data '{
"model": "claude-opus-4-7",
"max_tokens": 1024,
"messages": [
{
"role": "user",
"content": "Explain how an HTTP request works in three concise steps."
}
],
"stream": false
}'const apiKey = process.env.MODEL_API_KEY;
const response = await fetch("https://newrouters.com/v1/messages", {
method: "POST",
headers: {
"Content-Type": "application/json",
"x-api-key": apiKey,
"anthropic-version": "2023-06-01"
},
body: JSON.stringify({
"model": "claude-opus-4-7",
"max_tokens": 1024,
"messages": [
{
"role": "user",
"content": "Explain how an HTTP request works in three concise steps."
}
],
"stream": false
})
});
if (!response.ok) throw new Error(await response.text());
console.log(await response.text());import os
import json
import requests
response = requests.post(
"https://newrouters.com/v1/messages",
headers={
"Content-Type": "application/json",
"x-api-key": os.environ["MODEL_API_KEY"],
"anthropic-version": "2023-06-01"
},
json=json.loads("{\"model\":\"claude-opus-4-7\",\"max_tokens\":1024,\"messages\":[{\"role\":\"user\",\"content\":\"Explain how an HTTP request works in three concise steps.\"}],\"stream\":false}"),
timeout=300,
)
response.raise_for_status()
print(response.text)Set MODEL_API_KEY in your server environment. Requests use this model’s native API and your account pricing.
Estimate one request, then choose a budget for your workflow.
| Usage | Quantity | Rate | Cost |
|---|---|---|---|
| tokens | $1.5/ 1M | $0.0015 | |
| tokens | $0.15/ 1M | $0 | |
| tokens | $1.875/ 1M | $0 | |
| tokens | $3/ 1M | $0 | |
| tokens | $7.5/ 1M | $0.00375 | |
| tokens | $7.5/ 1M | $0 |
Public USD estimate. Your account rate and final recorded usage determine the actual charge.
| Specification | Our price | Official reference |
|---|---|---|
| Input | $1.5 / 1M tokens | $5 About 70% less than official |
| Cached input | $0.15 / 1M tokens | $0.5 About 70% less than official |
| Cache write · 5m | $1.875 / 1M tokens | $6.25 About 70% less than official |
| Cache write · 1h | $3 / 1M tokens | $10 About 70% less than official |
| Output | $7.5 / 1M tokens | $25 About 70% less than official |
| Reasoning | $7.5 / 1M tokens | $25 About 70% less than official |
Original prompts adapted to documented capabilities; these are not vendor-generated outputs.
Official source ↗ · 2026-10-14
Find boundary errors in this TypeScript function. Provide a minimal fix and tests for nulls, repeated calls and errors. Code: [paste code]
USER MESSAGEValidate a minimal code change against explicit boundary cases.
Review concurrency and recovery in this order system. Identify consistency risks, reproduction conditions and minimal fixes. Design: [paste design]
USER MESSAGEFocus on concurrency and recovery boundaries, reproducible problems and minimal fixes.
Claude Opus 4.7 supports adaptive reasoning and text and image inputs; the vendor now lists it as a legacy model.
Official model information ↗ · 2026-10-14
| Specification | Claude Opus 4.7 |
|---|---|
| Model ID | claude-opus-4-7 |
| Provider | Anthropic |
| API | /v1/messages |
| Context window | 1,000,000 tokens |
| Maximum output | 128,000 tokens |
| Declared capabilities | Tools · Streaming · Reasoning · Structured output |
claude · claude-opus-4-7
tools · stream · reasoning · structured_output
| Specification | Claude Opus 4.7 | Claude Fable 5 | Claude Fable 5.1 |
|---|---|---|---|
| Provider | Anthropic | Anthropic | Anthropic |
| Input → output | TextText | TextText | TextText |
| Selection basis | Current model | Same claude protocol · Same billing units | Same claude protocol · Same billing units |
| Context / max output | 1,000,000 / 128,000 | 1,000,000 / 128,000 | 1,000,000 / 128,000 |
| Starting price | $1.5 / 1M tokens | $3 / 1M tokens | $3 / 1M tokens |
Choose by the input types, output settings and billing unit your workflow needs. Try the same prompt across models to compare results for your own use case.
Keep the native request format and point your application to the platform API. Prepare a key with model access, then review status and charges in your usage records.
View API examplesEverything you need to know about API access, pricing and model capabilities.
Charges depend on the recorded token usage and your account rates. Input, output and supported cache or reasoning categories are listed separately in the pricing table. The calculator uses public USD prices; the final usage receipt determines the charge.
Choose “Get API access” to open the integration guide. Sign in to your NewRouters account, prepare a key with access to this model and copy an API example.
Supported endpoints: /v1/messages、/v1/messages/count_tokens. Choose an endpoint in the API examples to see its native request format.
The current model route declares streaming support. Use the native endpoint’s streaming option and consume its events. Usage already completed may still be billed if the connection is interrupted.
Tools: supported. Structured output: supported. Request fields follow the selected native endpoint.
Keep the request ID and open your account’s LLM usage records to inspect request status, token counts and charges. Prompt and answer content are not a conversation history in this view.
Hello, API.Prepare a key, choose a model and send a minimal request.
View docs section ↗{ messages: [...] }Explore request formats for OpenAI, Claude and Gemini.
View docs section ↗build(something)Separate token estimates, account pricing and final usage receipts.
View docs section ↗