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Amazon Titan Text Embeddings V2 embeddings

Amazon Titan Text Embeddings V2 is a current embedding model from Amazon, called by API as amazon.titan-embed-text-v2:0. It returns 1,024-dimension vectors by default and accepts up to 8,192 input tokens, for text input. The first-party list price is $0.02 per 1M input tokens.

CurrentModel id: amazon.titan-embed-text-v2:0

Default dims
1,024
Max input
8,192 tok
Price / 1M
$0.02
Inputs
Text

Dimensions

Flexible output size
  • 1,024default
  • 512
  • 256

Default output: 1,024 dimensions.

Listed sizes: 1,024, 512 and 256.

Amazon documents shorter output vectors for this model (Matryoshka-style), so you can store smaller embeddings by asking for fewer dimensions instead of re-embedding with another model.

Pricing

Per 1M input tokens
$0.02
Batch, per 1M
Not stated

Amazon Bedrock on-demand price per 1M input tokens; batch listed as N/A.

Source: aws.amazon.com/bedrock/pricing

Usage

Copied verbatim from the page linked below. Placeholders such as project ids and API keys are the source's own.

Python
import json
import boto3

client = boto3.client('bedrock-runtime', region_name='us-east-1')
response = client.invoke_model(
    modelId='amazon.titan-embed-text-v2:0',
    body=json.dumps({
            'inputText': 'What are the different services that you offer?',
            'dimensions': 1024,
            'normalize': True
    })
)
print(json.loads(response['body'].read()))

Source: docs.aws.amazon.com/bedrock/latest/userguide/model-card-amazon-titan-text-embeddings-v2.html

Worth knowing

Accepts up to 8,192 tokens or 50,000 characters, is optimized for English with 100+ languages in preview, and supports float or binary output for RAG, document search and clustering.

Released . Multilingual: yes.

FAQ

How many dimensions does Amazon Titan Text Embeddings V2 output?

Default output: 1,024 dimensions. Listed sizes: 1,024, 512 and 256. Amazon documents shorter output vectors for this model (Matryoshka-style), so you can store smaller embeddings by asking for fewer dimensions instead of re-embedding with another model.

What is the max input length of Amazon Titan Text Embeddings V2?

8,192 tokens per input, per Amazon's documentation. Longer text has to be chunked before you embed it.

How much does Amazon Titan Text Embeddings V2 cost?

The first-party list price is $0.02 per 1M input tokens. Amazon Bedrock on-demand price per 1M input tokens; batch listed as N/A. Source: https://aws.amazon.com/bedrock/pricing/.

What can Amazon Titan Text Embeddings V2 embed?

Text input, per the provider. It is documented as multilingual.

Sources

Last verified from the pages below.

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