Claude Opus 4.8

New

Parameters

Opus

Context Length

About this model

Claude Opus 4.8 is Anthropic's flagship model, renowned for its coding ability, careful reasoning, and reliability on long, multi-step agentic tasks. It supports vision and a large context window. Access it through the DOS.AI gateway alongside every other frontier model with one API key and unified billing.

Capabilities

Advanced reasoningBest-in-class codingVisionTool callingLong context (1M)

Use Cases

Software engineering
Complex agents
Research
Long-horizon tasks

Model Details

Provider: Anthropic
Model ID: claude-opus-4.8
Parameters: Opus
Context Length: 1M tokens
Category: chat

API Usage

Use the DOS API to integrate Claude Opus 4.8into your applications. Our API is compatible with OpenAI's client libraries for easy migration.

Model ID

claude-opus-4.8

Python

python

from dos import DOS

client = DOS()

response = client.chat.completions.create(
    model="claude-opus-4.8",
    messages=[
        {"role": "user", "content": "Hello, how are you?"}
    ]
)

print(response.choices[0].message.content)

cURL

bash

curl https://api.dos.ai/v1/chat/completions \
  -H "Authorization: Bearer $DOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-4.8",
    "messages": [
      {"role": "user", "content": "Hello, how are you?"}
    ]
  }'

Node.js

javascript

import DOS from 'dos-ai';

const client = new DOS();

const response = await client.chat.completions.create({
  model: "claude-opus-4.8",
  messages: [
    { role: "user", content: "Hello, how are you?" }
  ]
});

console.log(response.choices[0].message.content);

View full API reference

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