claude-haiku-4-5-20251001

Includes acceptance tests and failed requests, across prices for this model. Private requests are excluded. This sample describes observed traffic; it is not an uptime guarantee.

First text measures dispatch to the first text event. Duration measures dispatch to the recorded finish, including recovery when relevant. Each row excludes missing measurements; percentiles interpolate the sample. 3 settled · 0 released. Outcomes and accounting states are separate counts.

Endpoint https://aftercore.io/v1/messages

Set AFTERCORE_API_KEY to your Aftercore key. Use a public key for market supply; private keys can only use your own eligible seats. Automatic retries are disabled. Running this example purchases inference at the displayed model’s price.

// Each run purchases a new request unless you reuse AFTERCORE_REQUEST_ID. Inspect Usage before retrying.
import { randomUUID } from 'node:crypto';
import Anthropic from '@anthropic-ai/sdk';
const headers = { 'Idempotency-Key': process.env.AFTERCORE_REQUEST_ID || randomUUID(), 'X-Aftercore-Price-Version': "bdaabb79-1def-47b5-be99-60d94413bc40", ...(process.env.AFTERCORE_SESSION ? { 'X-Aftercore-Session': process.env.AFTERCORE_SESSION } : {}) };
const client = new Anthropic({ apiKey: process.env.AFTERCORE_API_KEY, baseURL: "https://aftercore.io", maxRetries: 0 });
const stream = await client.messages.create({
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 32,
  "stream": true,
  "messages": [
    {
      "role": "user",
      "content": "Say hello in one short sentence."
    }
  ]
}, { headers });
for await (const event of stream) {
  if (event.type === 'content_block_delta' && event.delta.type === 'text_delta') process.stdout.write(event.delta.text);
}

Only the supported streaming surface is shown. Output limits on subscription routes are hints; the versioned spending hold is the buyer debit ceiling. Inspect Usage after any interruption before sending another request.