Last refreshed 2026-05-19. Next refresh: weekly.
Why use Claude Sonnet 4.5 on AWS Bedrock?
AWS Bedrock offers Claude Sonnet 4.5 with pay-as-you-go pricing at $9.00/1M input tokens. AWS Bedrock is Amazon's fully managed foundation-model service, providing unified API access to top models from Anthropic, Meta, Mistral, and other leading AI labs with built-in tools for RAG, fine-tuning, and AI agent development.
Compare Claude Sonnet 4.5 across 8 providers to find the best fit for your use caseSetup recipe
Python + curlpip install boto3export AWS_ACCESS_KEY_ID=...import boto3
client = boto3.client("bedrock-runtime", region_name="us-east-1")
response = client.converse(
modelId="claude-sonnet-4-5",claude-sonnet-4-5Request example
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="claude-sonnet-4-5",
messages=[{
"role": "user",
"content": [{"text": "Hello"}]
}]
)
print(response["output"]["message"]["content"][0]["text"])Gotchas
- 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.
- The endpoint template includes a region segment; set the same region in your SDK/client configuration.
- The examples expect AWS_ACCESS_KEY_ID; rename it only if your application config maps the new variable.
Compare Claude Sonnet 4.5 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Microsoft Foundry | $3.00 | $15.00 |
| Anthropic | $3.00 | $15.00 |
| Snowflake Cortex | — | — |
| GCP Vertex AI | $3.00 | $15.00 |
| AWS Bedrock | $9.00 | $45.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $9.00 |
| Output tokens | $45.00 |
Capabilities
About Claude Sonnet 4.5
Claude Sonnet 4.5 is Anthropic's Claude 4.5 model with multimodal text and image input and an optional reasoning mode. It offers a 200K-token context window and scores 86 on MMLU PRO.
FAQ
What does Claude Sonnet 4.5 cost on AWS Bedrock?
On AWS Bedrock, Claude Sonnet 4.5 costs $9.0 per 1M input tokens and $45.0 per 1M output tokens.
What is the context window for Claude Sonnet 4.5 on AWS Bedrock?
Claude Sonnet 4.5 supports a 200,000 token context window on AWS Bedrock.
How does AWS Bedrock compare to other Claude Sonnet 4.5 providers?
Claude Sonnet 4.5 is available from 8 providers. The cheapest input pricing is $3/1M tokens from Microsoft Foundry.
Who created Claude Sonnet 4.5?
Claude Sonnet 4.5 was created by Anthropic as part of the Claude 4.5 model family.
Is Claude Sonnet 4.5 open source?
Claude Sonnet 4.5's open source status is unknown in the seed data.