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Anthropic
Claude Sonnet 4.6
Balanced speed + capability.
chatbalanced
Input price
$3.60
per 1M tokens (with markup)
Output price
$18.00
per 1M tokens (with markup)
Context window
200,000
tokens max input
About Claude Sonnet 4.6
Sonnet is Anthropic's balanced model for general agents and chat.
Capabilities
✓Streaming
✓Tool calling / function calls
✓Vision input
—JSON mode
Use it through OneAPIKey
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.ONEAPIKEY_API_KEY,
baseURL: "https://oneapikey.app/v1",
});
const res = await client.chat.completions.create({
model: "claude-sonnet-4-6",
messages: [{ role: "user", content: "Hello!" }],
});