Predefined and Custom Models - Automation Anywhere EKB Docs

EKB not only brings you the latest and most popular models available, we enable you to connect to your own custom model with our “Bring Your Own Keys” (BYOK) feature. This gives you the ability to create custom Agents and test how they respond or complete the tasks you give them so that you can use the LLM that produces the best results for your use case. In this article you’ll learn about the different LLMs that are available and how to connect your own custom LLM to your Agents. Your agents can use two types of models:

Predefined Models

Pre-configured models available to all users — no API key required.

Custom Models (BYOK)

Models you configure with your own API keys for full cost control and flexibility.

Predefined Models

Predefined models are available by default and don’t require API key configuration. These models are managed by EKB and are ready to use. EKB provides access to a wide range of models from leading AI providers, including OpenAI, Anthropic, Google AI, and more. The full list of available models is displayed in the model selector when configuring your agent.

Available Models by Provider

All available models are visible in the model selector dropdown when configuring your agent. Models are organized by provider and show their cost, capabilities, and availability status.

Model	Provider	Version	Credits / 1M Input	Credits / 1M Output	Deprecation
Haiku 4.5	Anthropic	`claude-haiku-4-5-20251001`	100	500	Not sooner than Oct 15, 2026
Sonnet 4	Anthropic	`claude-sonnet-4-20250514`	300	1,500	Jun 15, 2026
Sonnet 4.5	Anthropic	`claude-sonnet-4-5-20250929`	300	1,500	Not sooner than Sep 29, 2026
Sonnet 4.6	Anthropic	`claude-sonnet-4-6`	300	1,500	Not sooner than Feb 17, 2027
DeepSeek Chat	DeepSeek	`deepseek-chat`	14	28	Jul 24, 2026
Gemini 2.5 Flash	Google AI	`gemini-2.5-flash`	30	250	Not before Oct 16, 2026
Gemini 3.1 Flash-Lite	Google AI	`gemini-3.1-flash-lite`	25	150	N/A
Gemini 3.5 Flash	Google AI	`gemini-3.5-flash`	150	900	N/A
Llama 4 Scout	Groq	`meta-llama/llama-4-scout-17b-16e-instruct`	8	30	N/A
GPT 4o	OpenAI	`gpt-4o`	500	1,500	N/A
GPT 4o Mini	OpenAI	`gpt-4o-mini`	15	60	N/A
GPT 4.1	OpenAI	`gpt-4.1-2025-04-14`	200	800	N/A
GPT 4.1 Mini	OpenAI	`gpt-4.1-mini-2025-04-14`	40	160	N/A
GPT 4.1 Nano	OpenAI	`gpt-4.1-nano-2025-04-14`	10	40	N/A
GPT 5	OpenAI	`gpt-5`	125	1,000	N/A
GPT 5 Mini	OpenAI	`gpt-5-mini`	25	200	N/A
GPT 5 Nano	OpenAI	`gpt-5-nano`	5	40	N/A
GPT 5.1	OpenAI	`gpt-5.1`	100	100	N/A
GPT 5.2	OpenAI	`gpt-5.2`	200	1,500	N/A
GPT 5.4	OpenAI	`gpt-5.4-2026-03-05`	250	1,500	N/A
GPT 5.4 Mini	OpenAI	`gpt-5.4-mini-2026-03-17`	75	450	N/A
GPT 5.4 Nano	OpenAI	`gpt-5.4-nano-2026-03-17`	20	125	N/A
GPT 5.5	OpenAI	`gpt-5.5`	500	3,000	N/A
o3 Mini	OpenAI	`o3-mini`	110	440	N/A

Model Selection

Navigate to Agents

Go to Agents in the sidebar.

Open an agent

Create a new agent or select an existing one.

Go to the General tab

Open the General tab in the agent configuration.

Select a model

Find the Model drop-down selector next to the agent’s name and select a predefined model from the dropdown.

Model Information

Each predefined model shows:

Field	Description
Model Name	Display name (e.g., “GPT 4o”)
Provider	API provider (OpenAI, Anthropic, Google AI, DeepSeek, Groq)
Cost	Credits per 1M input and output tokens
Deprecation	Tentative retirement or deprecation date

Custom Models (BYOK)

Bring Your Own Key (BYOK) allows you to configure custom models using your own API keys. This gives you:

Cost Control

Use your own API keys and billing.

Model Flexibility

Access models not available in the predefined list.

Custom Endpoints

Connect to private or custom model endpoints.

Provider Choice

Use any compatible API provider.

Supported Providers

OpenAI

Supports standard OpenAI API models, Azure OpenAI endpoints, and custom OpenAI-compatible endpoints.

Field	Value
API Key	Your OpenAI API key
API URL	`https://api.openai.com/v1` (default)
Model Name	e.g., `gpt-4`, `gpt-3.5-turbo`

Anthropic

Supports Claude models via Anthropic API and custom Anthropic-compatible endpoints.

Field	Value
API Key	Your Anthropic API key
API URL	`https://api.anthropic.com` (default)
Model Name	e.g., `claude-sonnet-4-6`

Google AI

Supports Gemini models via Google AI API and custom Google AI endpoints.

Field	Value
API Key	Your Google AI API key
API URL	`https://generativelanguage.googleapis.com/` (default)
Model Name	e.g., `gemini-2.5-flash`

OpenRouter

Provides access to multiple model providers through a unified API for various models.

Field	Value
API Key	Your OpenRouter API key
API URL	OpenRouter endpoint
Model Name	Any model available on OpenRouter

AWS Bedrock

Supports Amazon Bedrock models and various foundation models.

Field	Value
AWS Credentials	Configured separately
API URL	Bedrock endpoint
Model Name	Bedrock model identifier

Custom Endpoints

Supports any OpenAI-compatible API endpoint, including private deployments and self-hosted models.

Field	Value
API Key	Your custom API key (if required)
API URL	Your custom endpoint URL
Model Name	Your model identifier

Adding Custom Models

Navigate to Agents

Go to Agents in the sidebar.

Open an agent

Create a new agent or select an existing one to edit.

Go to the Settings tab

Open the Settings tab in the agent configuration.

Open Custom Models

Scroll to the Custom Models section and click +Add Model.

Fill in the model details

The model configuration modal will open. Enter the following:

Field	Description
Model Name	The exact model name as recognized by the API (e.g., `gpt-4`, `claude-sonnet-4-6`)
Model Provider	Select the provider from the dropdown (OpenAI, Anthropic, Azure, Google AI, OpenRouter, AWS Bedrock, Custom, etc.)
API Key	Your API key for the selected provider. Stored securely.
API URL	The API endpoint URL
Timeout	Timeout for API requests. Default is 300s. Increase for long-running reasoning models.
Max Input Tokens	Maximum input tokens. Default is 3000. Adjust based on your model’s capabilities.
Max Response Tokens	Maximum response tokens. Default is 1000. Adjust based on your needs and model limits.

Create the model

Click Create. EK will validate the API connection and model configuration. If successful, the model will be saved and available for use in your agents.

Using Custom Models

Selecting a Custom Model

Open the General tab

In the agent editor, go to the General tab and find the Model section.

Choose your custom model

The dropdown shows both predefined and custom models. Custom models are marked or shown in a separate section. Select your custom model.

Custom models are project-specific. They are available to all agents in the project, and each project can have its own set of custom models.

Managing Custom Models

Viewing Custom Models

Go to Agents → Edit Agent → General tab.
Click the Custom tab in the AI Models section.
See all your custom models listed.

Editing Custom Models

Find the model in the Custom models list.
Click the Edit icon (three dots menu).
Modify configuration settings.
Click Save to update.

Editing the API key will replace the existing key. Make sure you have the correct key before saving.

Deleting Custom Models

Find the model in the Custom models list.
Click the Delete icon (three dots menu).
Confirm deletion.
The model is removed from your project.

Deleting a custom model will affect all agents using that model. Make sure to update those agents first.

Model Configuration Examples

{
  "model_name": "My GPT-4",
  "version": "gpt-4",
  "api_provider": "openai",
  "api_type": "openai",
  "api_key": "sk-...",
  "api_url": "https://api.openai.com/v1",
  "max_input_tokens": 60000,
  "max_response_tokens": 4096
}

Best Practices

API Key Security

Never Share Keys - Keep API keys confidential
Use Environment Variables - For development, use secure storage
Rotate Keys Regularly - Update keys periodically
Monitor Usage - Track API usage to detect issues

Model Selection

Match Use Case - Choose models appropriate for your task
Consider Cost - Balance performance and cost
Test Performance - Evaluate model quality for your needs
Monitor Limits - Watch token limits and quotas

Configuration

Accurate Model Names - Use exact model identifiers
Correct URLs - Verify API endpoint URLs
Appropriate Limits - Set realistic token limits
Test Connections - Verify model connectivity

Cost Management

Track Usage - Monitor API usage and costs
Set Budgets - Configure spending limits if available
Optimize Tokens - Use appropriate token limits
Review Regularly - Audit model usage periodically

Troubleshooting

Model Not Available — Custom model doesn't appear in dropdown

API Key Errors — Invalid API key or authentication errors

Possible causes:

Incorrect API key
Expired API key
Wrong API provider selected
Key doesn’t have required permissions

Solutions:

Verify API key is correct
Check key hasn’t expired
Confirm correct provider selected
Ensure key has necessary permissions

Connection Failures — Cannot connect to model endpoint

Possible causes:

Incorrect API URL
Network connectivity issues
Endpoint not accessible
Firewall blocking connection

Solutions:

Verify API URL is correct
Check network connectivity
Ensure endpoint is accessible
Review firewall rules

Token Limit Errors — Token limit exceeded

Possible causes:

Input too long
Response limit too high
Model limits exceeded

Solutions:

Reduce input length
Lower max response tokens
Check model’s actual limits
Split large inputs

Model Compatibility

When using Knowledge Base v2, only OpenAI (openai, azure) and Anthropic models are supported. Other providers are not compatible with Knowledge Base v2.

Different models support different features:

Feature	Supported Models
Streaming	Most models
Function Calling	OpenAI and Anthropic models
Vision	GPT-4o, Claude 4 Sonnet, Gemini 2.5 Flash
Long Context	Claude Sonnet 4.6, GPT 4.1

API Key Management

Getting API Keys

OpenAI

Go to OpenAI Platform.
Navigate to API Keys.
Create a new secret key.
Copy the key (starts with sk-).

Anthropic

Go to Anthropic Console.
Navigate to API Keys.
Create a new key.
Copy the key (starts with sk-ant-).

Google AI

Go to Google AI Studio.
Create a new API key.
Copy the key.

OpenRouter

Go to OpenRouter.
Navigate to Keys.
Create a new key.
Copy the key.

Key Security

Store Securely - Keys are encrypted in the database
Don’t Share - Never share API keys
Rotate Regularly - Update keys periodically
Monitor Usage - Watch for unauthorized use

Cost Considerations

Predefined Models

Costs managed by EKB
Billed through your EKB subscription
Credits-based pricing
Transparent pricing model

Custom Models (BYOK)

You pay directly to the provider
No additional EKB fees
Full control over costs
Direct billing from provider

Cost optimization tips:

Choose the right model - Use the appropriate model for your task.
Optimize prompts - Reduce token usage where possible.
Set limits - Configure max tokens appropriately.
Monitor usage - Track API usage regularly.

Predefined Models

Custom Models (BYOK)

​Predefined Models

​Available Models by Provider

​Model Selection

​Model Information

​Custom Models (BYOK)

Cost Control

Model Flexibility

Custom Endpoints

Provider Choice

​Supported Providers

​Adding Custom Models

​Using Custom Models

​Selecting a Custom Model

​Managing Custom Models

​Model Configuration Examples

​Best Practices

​Troubleshooting

​Model Compatibility

​API Key Management

​Getting API Keys

​Key Security

​Cost Considerations

Predefined Models

Custom Models (BYOK)

Predefined Models

Available Models by Provider

Model Selection

Model Information

Custom Models (BYOK)

Supported Providers

Adding Custom Models

Using Custom Models

Selecting a Custom Model

Managing Custom Models

Model Configuration Examples

Best Practices

Troubleshooting

Model Compatibility

API Key Management

Getting API Keys

Key Security

Cost Considerations