AWS Bedrock Mantle

Run Darcy's inference on your own AWS account and pick the models behind each tier

Bedrock Mantle is Amazon's OpenAI/Anthropic-compatible inference engine. Connecting it points DarcyIQ at a Bedrock project in your AWS account, so every model call Darcy makes on your behalf is billed to you — and you choose which models do the work.

This is the recommended way to bring your own models to DarcyIQ. Unlike the older AWS Bedrock option, Mantle lets you pick a specific model for each of Darcy's three workload tiers.

Before You Start

Requirement	Detail
Permissions	Organization admin or owner
AWS region	us-east-1, us-east-2, or us-west-2
AWS access	Rights to deploy a CloudFormation stack and create a Bedrock API key

Setup

1

Deploy the CloudFormation template In Darcy, go to Settings → Organization → Model Routing, choose AWS Bedrock Mantle, and click Launch CloudFormation template. The stack creates a Bedrock project in your account, tagged with DarcyIQ's AWS Partner ID so usage is attributed correctly.

Deploy it into one of the three supported regions above.

2

Copy the Project ID When the stack finishes, copy the ProjectId output. It looks like proj_xxxxxxxx.

3

Create a Bedrock API key In the AWS Console, go to Amazon Bedrock → API keys and create a key scoped to the project you just created.

4

Connect it in Darcy Back in Model Routing → AWS Bedrock Mantle, fill in the three fields and click Connect.

Field	Value
Bedrock API Key	The bearer token you just created
AWS Region	The region hosting your project
Bedrock Project ID	The proj_ value from the stack output

5

Choose your models Under Model selection, pick a model for each tier and click Save models. Your choices apply to the whole organization.

Choosing Models for Each Tier

Darcy routes work to one of three tiers depending on what she's doing. You decide which model backs each one.

Tier	Used for	Default
Smart	General chat, agents, and most everyday reasoning	OpenAI GPT-5.6 Terra
Fast	Quick tasks like titles, summaries, and enrichment	OpenAI GPT-5.6 Luna
Analytical	Heavy analysis such as scoping and deep reasoning	OpenAI GPT-5.6 Sol

Available Models

Model	Suited to	Regions
OpenAI GPT-5.6 Sol	Analytical, Smart	us-east-1, us-east-2
OpenAI GPT-5.6 Terra	Smart, Analytical	All supported regions
OpenAI GPT-5.6 Luna	Fast, Smart	All supported regions
OpenAI GPT-5.5	Smart, Analytical	All supported regions
Anthropic Claude Opus 5	Analytical, Smart	All supported regions
Anthropic Claude Sonnet 5	Smart, Analytical	All supported regions
Anthropic Claude Haiku 4.5	Fast, Smart	All supported regions

The dropdown for each tier only lists models that suit that workload and are available in your region. GPT-5.6 Sol, for example, won't appear if your project is in us-west-2.

Darcy handles the plumbing behind each choice — OpenAI models are called through Mantle's OpenAI-compatible endpoint and Claude models through its Anthropic-compatible one. You pick a model by name; there's nothing else to configure.

What Changes Once You Connect

• Inference is billed to your AWS account, through your Bedrock project.

• Darcy behaves the same. Chat, agents, and every other feature work as before.

• Your model choices apply organization-wide, not per user.

There is no fallback to DarcyIQ's models while Mantle is connected. If your credentials expire, your key is revoked, or a model errors, the request fails rather than quietly running on our infrastructure. Bringing your own models means Darcy honors that boundary. If you need to fall back, disconnect the integration.

One Routing Option at a Time

Mantle and the older AWS Bedrock integration can't both be active. If Mantle is connected, the AWS Bedrock card shows as Unavailable with a note to disconnect Mantle first.

Disconnecting either one returns your organization to DarcyIQ's managed models.

Troubleshooting

Problem	Cause and fix
Bedrock Mantle is not available in ...	Your project is in a region Darcy doesn't support. The CloudFormation template offers more regions than the integration accepts — redeploy into us-east-1, us-east-2, or us-west-2
Model Routing isn't in my settings	It's limited to organization admins and owners
A model disappeared from the dropdown	It isn't offered in your project's region, or it isn't suited to that tier. Darcy falls back to the tier default
Requests started failing after connecting	Check that your API key is valid and scoped to the project you entered. There's no automatic fallback while Mantle is active
Can't find it in Integrations	Model routing lives under Settings → Organization → Model Routing, not the integrations directory

Related

• AWS Bedrock — the earlier IAM-credential integration

• Organization Management — the rest of your organization's settings