Amazon Titan Text models - Amazon Bedrock
Amazon Titan Text G1 - PremierAmazon Titan Text G1 - ExpressAmazon Titan Text G1 - LiteAmazon Titan Text Model CustomizationAmazon Titan Text Prompt Engineering Guidelines

Amazon Titan Text models

Amazon Titan text models include Amazon Titan Text G1 - Premier, Amazon Titan Text G1 - Express and Amazon Titan Text G1 - Lite.

Amazon Titan Text G1 - Premier

Amazon Titan Text G1 - Premier is a large language model for text generation. It is useful for a wide range of tasks including open-ended and context-based question answering, code generation, and summarization. This model is integrated with Amazon Bedrock Knowledge Base and Amazon Bedrock Agents. The model also supports Custom Finetuning in preview.

  • Model ID – amazon.titan-text-premier-v1:0

  • Max tokens – 32K

  • Languages – English

  • Supported use cases – 32k context window, open-ended text generation, brainstorming, summarizations, code generation, table creation, data formatting, paraphrasing, chain of thought, rewrite, extraction, QnA, chat, Knowledge Base support, Agents support, Model Customization (preview).

  • Inference parameters – Temperature, Top P (defaults: Temperature = 0.7, Top P = 0.9)

AWS AI Service Card - Amazon Titan Text Premier

Amazon Titan Text G1 - Express

Amazon Titan Text G1 - Express is a large language model for text generation. It is useful for a wide range of advanced, general language tasks such as open-ended text generation and conversational chat, as well as support within Retrieval Augmented Generation (RAG). At launch, the model is optimized for English, with multilingual support for more than 30 additional languages available in preview.

  • Model ID – amazon.titan-text-express-v1

  • Max tokens – 8K

  • Languages – English (GA), 100 additional languages (Preview)

  • Supported use cases – Retrieval augmented generation, open-ended text generation, brainstorming, summarizations, code generation, table creation, data formatting, paraphrasing, chain of thought, rewrite, extraction, QnA, and chat.

Amazon Titan Text G1 - Lite

Amazon Titan Text G1 - Lite is a light weight efficient model, ideal for fine-tuning of English-language tasks, including like summarizations and copy writing, where customers want a smaller, more cost-effective model that is also highly customizable.

  • Model ID – amazon.titan-text-lite-v1

  • Max tokens – 4K

  • Languages – English

  • Supported use cases – Open-ended text generation, brainstorming, summarizations, code generation, table creation, data formatting, paraphrasing, chain of thought, rewrite, extraction, QnA, and chat.

Amazon Titan Text Model Customization

For more information on customizing Amazon Titan text models, see the following pages.

Amazon Titan Text Prompt Engineering Guidelines

Amazon Titan text models can be used in a wide variety of applications for different use cases. Amazon Titan Text models have prompt engineering guidelines for the following applications including:

  • Chatbot

  • Text2SQL

  • Function Calling

  • RAG (Retrieval Augmented Generation)

For more information on Amazon Titan Text prompt engineering guidelines, see Amazon Titan Text Prompt Engineering Guidelines.

For general prompt engineering guidelines, see Prompt Engineering Guidelines.

AWS AI Service Card - Amazon Titan Text

AI Service Cards provide transparency and document the intended use cases and fairness considerations for our AWS AI services. AI Service Cards provide a single place to find information on the intended use cases, responsible AI design choices, best practices, and performance for a set of AI service use cases.