# Claude Sonnet 5.5 API Pricing

As of October 10, 2026, Claude Sonnet 5.5 costs $2.00 per 1M input tokens and $10.00 per 1M output tokens on Anthropic, with cache reads at $0.10 and cache writes at $2.50 per 1M tokens. Across 7 providers on LiteLLM, the input price ranges from $2.00 to $2.20. It has a 1,000,000-token context window and returns up to 128,000 tokens per response.

- Page: https://models.litellm.ai/models/claude-sonnet-5-5
- Lab: Anthropic
- LiteLLM model name: `claude-sonnet-5-5`
- Context window: 1,000,000 tokens
- Max output: 128,000 tokens
- Added to LiteLLM: September 28, 2026
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Anthropic | `claude-sonnet-5-5` | $2.00 | $10.00 | $0.10 | – | – | 1M |
| Amazon Bedrock | `anthropic.claude-sonnet-5-5` | $2.00 | $10.00 | $0.10 | – | – | 1M |
| Amazon Bedrock Mantle | `bedrock_mantle/anthropic.claude-sonnet-5-5` | $2.20 | $11.00 | $0.11 | – | – | 1M |
| Azure AI Foundry | `azure_ai/claude-sonnet-5-5` | $2.00 | $10.00 | $0.20 | – | – | 1M |
| GitHub Copilot | `github_copilot/claude-sonnet-5.5` | – | – | – | – | – | 200K |
| Google Vertex AI | `vertex_ai/claude-sonnet-5-5` | $2.00 | $10.00 | $0.10 | – | – | 1M |
| Google Vertex AI | `vertex_ai/claude-sonnet-5-5@default` | $2.00 | $10.00 | $0.10 | – | – | 1M |
| Perplexity | `perplexity/anthropic/claude-sonnet-5-5` | $2.00 | $10.00 | $0.20 | – | – | – |
| Amazon Bedrock (APAC cross-region) | `apac.anthropic.claude-sonnet-5-5` | $2.20 | $11.00 | $0.11 | – | – | 1M |
| Amazon Bedrock (Australia cross-region) | `au.anthropic.claude-sonnet-5-5` | $2.20 | $11.00 | $0.11 | – | – | 1M |
| Amazon Bedrock (us-gov-east-1) | `bedrock/us-gov-east-1/anthropic.claude-sonnet-5-5` | $2.40 | $12.00 | $0.12 | – | – | 1M |
| Amazon Bedrock (us-gov-west-1) | `bedrock/us-gov-west-1/anthropic.claude-sonnet-5-5` | $2.40 | $12.00 | $0.12 | – | – | 1M |
| Amazon Bedrock (EU cross-region) | `eu.anthropic.claude-sonnet-5-5` | $2.20 | $11.00 | $0.11 | – | – | 1M |
| Amazon Bedrock (Global cross-region) | `global.anthropic.claude-sonnet-5-5` | $2.00 | $10.00 | $0.10 | – | – | 1M |
| Amazon Bedrock (Japan cross-region) | `jp.anthropic.claude-sonnet-5-5` | $2.20 | $11.00 | $0.11 | – | – | 1M |
| Amazon Bedrock (US GovCloud cross-region) | `us-gov.anthropic.claude-sonnet-5-5` | $2.40 | $12.00 | $0.12 | – | – | 1M |
| Amazon Bedrock (US cross-region) | `us.anthropic.claude-sonnet-5-5` | $2.20 | $11.00 | $0.11 | – | – | 1M |
| Amazon Bedrock Mantle (us-gov-west-1) | `bedrock_mantle/us-gov-west-1/anthropic.claude-sonnet-5-5` | $2.40 | $12.00 | $0.12 | – | – | 1M |

## Cost examples

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

- Anthropic: $9.00
- Amazon Bedrock: $9.00
- Azure AI Foundry: $9.00
- Google Vertex AI: $9.00
- Anthropic batch: $4.50

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

- Anthropic: $22.00
- Amazon Bedrock: $22.00
- Azure AI Foundry: $22.00
- Google Vertex AI: $22.00

## Features

Supported: Function calling, Parallel tool calls, Structured output, Image input, PDF input, Reasoning, Prompt caching, Web search, Computer use.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="claude-sonnet-5-5",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Claude Sonnet 5.5 cost?

Claude Sonnet 5.5 costs $2.00 per 1M input tokens and $10.00 per 1M output tokens on Anthropic, with cache reads at $0.10 and cache writes at $2.50 per 1M tokens. Batch requests cost $1.00 per 1M input tokens and $5.00 per 1M output tokens. Across 7 providers on LiteLLM, the input price ranges from $2.00 to $2.20.

### What is the context window of Claude Sonnet 5.5?

Claude Sonnet 5.5 has a 1,000,000-token context window and returns up to 128,000 tokens per response.

### Which providers offer Claude Sonnet 5.5?

Claude Sonnet 5.5 is available from 7 providers through LiteLLM: Anthropic, Amazon Bedrock, Amazon Bedrock Mantle, Azure AI Foundry, GitHub Copilot, Google Vertex AI and Perplexity. The lowest price is on Anthropic.

### How do I call Claude Sonnet 5.5 with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="claude-sonnet-5-5", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Claude Sonnet 5.5 support?

Claude Sonnet 5.5 supports function calling, parallel tool calls, structured output, image input, PDF input, reasoning, prompt caching, web search and computer use.

### When did LiteLLM add Claude Sonnet 5.5?

Claude Sonnet 5.5 was added to LiteLLM's model price file on September 28, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json