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September 16, 2025

Amazon Bedrock's New Prompt Optimization Tool Promises 22% Performance Boost for AI Applications

AWS has launched Prompt Optimization on Amazon Bedrock, a breakthrough feature that automates the time-consuming process of prompt engineering. Instead of spending months manually tweaking prompts for different AI models, developers can now optimize their prompts with a single API call or console click.

What Makes This Tool Game-Changing?

Prompt engineering traditionally requires extensive experimentation across different foundation models, with no guarantee that optimized prompts will work across various AI systems. This new feature eliminates that friction by automatically applying best practices for each supported model, including:

  • Anthropic's Claude 3 family (Haiku, Sonnet, Opus, and Claude-3.5-Sonnet)
  • Meta's Llama 3 70B and Llama 3.1 70B models
  • Mistral's Large model
  • Amazon's Titan Text Premier model

Proven Performance Improvements

AWS tested the feature on three key AI tasks using open-source datasets, showing impressive results:

How It Works

The optimization process transforms basic prompts into structured, explicit instructions. For example, a simple request becomes a detailed template with clear task descriptions, context sections, and specific formatting requirements. AWS demonstrated this with a customer service classification use case, where the tool automatically enhanced prompt clarity and output formatting.

Once optimized, prompts can be deployed through prompt management with version control capabilities, allowing teams to test different configurations and roll back changes when needed.

Why This Matters Now

This tool addresses a major bottleneck in AI application development. By automating prompt optimization, organizations can test multiple models more efficiently and accelerate their generative AI deployments without requiring deep prompt engineering expertise.

Read the full article on AWS Machine Learning Blog