Anthropic: Claude Sonnet 4 6

anthropic/claude-sonnet-4.6

Context

Input

text, image

Output

text

Tool calling

Supported

About this model

Claude Sonnet 4.6 is Anthropic's balanced production model, offering near-Opus level intelligence at a much lower cost. It features a full upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work, and design, along with an adaptive thinking capability.

Compare Text Models

Input modalities

text

Accepted as model input

image

Accepted as model input

Providers

Available routing options for this model through OneInfer.

Anthropic

Available

Input tokens

$3.000 / 1M tokens

Output tokens

$15.000 / 1M tokens

Routing

OneInfer optimized

Pricing

Current OneInfer pricing for this model.

Usage	Price
Input tokens	$3.000 / 1M tokens
Output tokens	$15.000 / 1M tokens
Cached input tokens	$6.000 / 1M tokens

Performance

Published evaluation results associated with this model.

Coding

SWE-bench79.6

API Guide

Refer Documentation

1
Generate your access token
Use your API key to generate the JWT access token required by the Models API.
2
Add the JWT token
Copy the generated JWT token and replace JWT_TOKEN in the example below.
3
Check your credits
If your balance is too low, before calling the model.

Run the API example

Choose your preferred language, copy the example, and send your first model request.

curl https://api.oneinfer.ai/v1/ula/chat/completions \
  -H "Authorization: Bearer $JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4.6",
    "messages": [
      { "role": "user", "content": "Hello!" }
    ]
  }'