Using Claude Sonnet 5.5 on AWS Bedrock

Implementation guide · Claude 5.5 · Anthropic

Serverless

AWS Bedrock exposes Claude Sonnet 5.5 through model ID anthropic.claude-sonnet-5-5. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-09-28. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at AWS Bedrock and generate an API key.
  2. 2
    Use the AWS Bedrock SDK or REST API to call anthropic.claude-sonnet-5-5 — see the documentation for request format.
  3. 3
    You'll be billed $2.00/1M input, $10.00/1M output tokens. See full pricing.

Code Examples

Install
pip install boto3
API key
AWS_ACCESS_KEY_ID
Model ID
anthropic.claude-sonnet-5-5

Use Amazon Bedrock model IDs, e.g. "anthropic.claude-3-opus-20240229-v1:0" for on-demand, or cross-region inference profile IDs like "us.anthropic.claude-opus-4-7-20251101-v1:0". These differ from the public model slug.

import boto3

# Reads AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_DEFAULT_REGION from env
client = boto3.client("bedrock-runtime", region_name="us-east-1")
response = client.converse(
    modelId="anthropic.claude-sonnet-5-5",
    messages=[{
        "role": "user",
        "content": [{"text": "Hello"}]
    }]
)
print(response["output"]["message"]["content"][0]["text"])

Pricing on AWS Bedrock

TypePrice (per 1M)
Input tokens$2.00
Output tokens$10.00

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsPrompt CachingBatch API

About Claude Sonnet 5.5

Anthropic's Claude Sonnet 5.5, second model in the Claude 5.5 family, released September 28, 2026. First-party positioning: faster, lower-cost complement to Claude Opus 5.5; strongest at well-scoped everyday tasks, bug fixes, and polished documents/slides/spreadsheets; clear upgrade over Claude Sonnet 5 (30%+ faster output; up to 30% less cost per task via fewer tokens — list price unchanged vs Sonnet 5). Claude API id claude-sonnet-5-5. List price $2 per 1M input and $10 per 1M output; cache reads $0.20 / MTok; 5m cache writes $2.50; 1h cache writes $4; Batch API 50% off ($1/$5).

Model Specs

Released2026-09-28
Context1.05m
ArchitectureDecoder Only
Knowledge cutoff2026-06

Provider

AWS Bedrock

Amazon Web Services

Seattle, Washington, United States