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Anthropic

Sonnet 4.6

anthropic/claude-sonnet-4.6

A capable Sonnet-class model with strong coding, agentic, and professional-work performance.

Pricing

Input$3.00per 1M tokens
Output$15.00per 1M tokens
Cached input$0.3per 1M tokens read from cache

Specifications

Context window1Mtokens
Max output66Ktokens
ProviderAnthropic
CapabilitiesVision · Reasoning · Function calling
Input typestext, image

Use Sonnet 4.6

Point your existing OpenAI SDK at xKiro and pass anthropic/claude-sonnet-4.6 as the model. Nothing else in your code changes.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.xkiro.com/v1",
    api_key="YOUR_XKIRO_KEY",
)

response = client.chat.completions.create(
    model="anthropic/claude-sonnet-4.6",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Supported parameters

max_tokens · temperature · top_p · stop · frequency_penalty · presence_penalty · seed · stream · tools · tool_choice · response_format · structured_outputs · reasoning · include_reasoning

Related models

Call Sonnet 4.6 through the same endpoints you already use.

Get an API key