Cohere Rerank 3.5 on AWS Bedrock

Name: Cohere Rerank 3.5 on AWS Bedrock
Brand: Cohere

Rerank · Cohere

Serverless

Last refreshed 2026-05-19. Next refresh: weekly.

Why use Cohere Rerank 3.5 on AWS Bedrock?

AWS Bedrock offers Cohere Rerank 3.5 with competitive pricing. 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 Cohere Rerank 3.5 across 2 providers to find the best fit for your use case

Input / 1M

Output / 1M

Cache

Not sourced

Batch

Not sourced

Setup recipe

Python + curl

Install

pip install boto3

Auth

export AWS_ACCESS_KEY_ID=...

Call

import boto3
client = boto3.client("bedrock-runtime", region_name="us-east-1")
response = client.converse(
    modelId="cohere-rerank-3-5",

Model ID

cohere-rerank-3-5

Request 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="cohere-rerank-3-5",
    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.