Claude Opus 5.5 Fast API Pricing

Claude Opus 5.5 Fast pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

Other Claude Opus 5.5 Fast prices on Azure AI Foundry

What Claude Opus 5.5 Fast 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 Opus 5.5 Fast cost calculator

At Azure AI Foundry's price ($8.00 input, $40.00 output per 1M tokens), 10,000 requests a day with 1,000 input and 500 output tokens each cost $280 a day, about $8,400 a month. Change the numbers for your workload, or compare it with other models.

Claude Opus 5.5 Fast features

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

Use Claude Opus 5.5 Fast with LiteLLM

Call Claude Opus 5.5 Fast 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="azure_ai/claude-opus-5-5-fast",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: claude-opus-5-5-fast
    litellm_params:
      model: azure_ai/claude-opus-5-5-fast
      # 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 $LITELLM_API_KEY" \
  -d '{
    "model": "claude-opus-5-5-fast",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Claude Opus 5.5 Fast FAQ

More Anthropic models

• Claude Opus 5.5$4 / $20 per 1M tokens
• Claude Opus 4.8 Think$5 / $25 per 1M tokens
• Claude Opus 5$5 / $25 per 1M tokens
• Claude Opus 4.8$5 / $25 per 1M tokens
• Claude Opus 4.7$5 / $25 per 1M tokens
• Claude Opus 4.6$5 / $25 per 1M tokens
• Claude Opus 4.5$5 / $25 per 1M tokens
• Claude Opus 4.1$15 / $75 per 1M tokens