Claude Sonnet 4 API Pricing

Claude Sonnet 4 pricing by provider

8 listings across 4 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What Claude Sonnet 4 costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

Claude Sonnet 4 features

• Function calling
• Structured output
• Image input
• PDF input
• Reasoning
• Prompt caching
• Computer use

Use Claude Sonnet 4 with LiteLLM

Call Claude Sonnet 4 through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="databricks/databricks-claude-sonnet-4",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: claude-sonnet-4
    litellm_params:
      model: databricks/databricks-claude-sonnet-4
      # credentials: see the provider's LiteLLM docs page

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "claude-sonnet-4",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Claude Sonnet 4 FAQ

More Anthropic models

• Claude Sonnet 5.5$2 / $10 per 1M tokens
• Claude Sonnet 5$2 / $10 per 1M tokens
• Claude Sonnet 4.6$3 / $15 per 1M tokens
• Claude Sonnet 4.1$3 / $15 per 1M tokens
• Claude Sonnet 4.5$3 / $15 per 1M tokens
• Claude Opus 5.5$4 / $20 per 1M tokens
• Claude Opus 4.8 Think$5 / $25 per 1M tokens
• Claude Mythos 5.1$10 / $50 per 1M tokens