Adopting Google × Anthropic LLM Orchestration! Mieru-ca GEO and Mieru-ca SEO Launch New 'Prompt Expansion' Feature to Capture Linguistic Variations in AI Search

Faber Company Inc. (Headquarters: Minato-ku, Tokyo; CEO: Masaki Inaji, Nao-o Furusawa) announces the launch of the 'Prompt Expansion' feature on its Generative Engine Optimization (GEO) platform 'Mieru-ca GEO' and SEO platform 'Mieru-ca SEO'. This new functionality automatically generates diverse question patterns that users input into AI search platforms such as ChatGPT and Gemini.

The feature utilizes a proprietary 'LLM Orchestration' system combining Google's and Anthropic's large language models (LLMs). It captures even subtle differences in user expression, enabling multi-faceted analysis of generative AI response tendencies. By accurately visualizing a company's position in AI search results, the tool supports comprehensive GEO strategies—from brand awareness expansion to risk management—setting a new standard in AI search marketing.

Background of Development

With the widespread adoption of generative AI platforms such as ChatGPT, Gemini, and Google's AI Overviews, it has become essential for corporate marketing and executive teams to understand how AI evaluates and recommends their brand to users.

However, user queries to AI vary significantly in phrasing, making it difficult for traditional keyword monitoring to fully capture brand exposure gaps or hallucinations (instances where AI generates factually incorrect information).

To address this challenge, Faber Company has developed this feature based on proprietary logic refined through extensive testing, enabling the automatic generation of realistic, real-world prompt data. This innovation enhances the efficiency of AI search marketing—making previously opaque results measurable—and drives tangible improvements in ROI.

Three Key Features of 'Prompt Expansion'

Google × Anthropic LLM Orchestration

The system intelligently integrates both companies' LLMs at optimal stages—such as summarizing content from URLs or expanding and varying question phrasing—enabling advanced text analysis and processing that would be difficult with a single LLM.

Automatic Generation of 100 Prompts in Seconds

Creating around 100 prompt variations manually can take several hours. This feature reduces the process to just seconds, dramatically reducing the workload for marketing teams.

High-Precision Output Based on Proprietary Expertise

Leveraging insights accumulated through 'Mieru-ca GEO Consulting', the AI generates prompt variations aligned with user purchase phases (e.g., comparison, evaluation, reviews). This enables comprehensive, unbiased monitoring of brand exposure gaps and hallucinations from an objective standpoint.

Overview of the Feature

Starting from a single user-provided 'reference prompt' or 'reference URL', the feature automatically generates a large number of relevant prompts to evaluate how a brand is represented across major generative AI platforms.

1. Expanding Search Intent from One Prompt or URL

Users can begin prompt expansion by entering either a reference prompt or a reference URL. Additionally, by including a 'reference keyword set'—containing primary keywords and monthly search volumes—the system enhances accuracy by aligning prompts more closely with actual user search demand.

2. Automatic Generation of Prompts Across 5 Purchase Phases

The system automatically creates up to 100 prompts tailored to five key purchase phases: 'Problem Solving', 'Information Gathering', 'Comparison & Evaluation', 'Purchase Decision', and 'Branded Search & Awareness'. This enables comprehensive coverage of the types of questions users ask AI at each stage of their decision-making journey.

3. Automatic Generation of Natural Paraphrases

The system automatically generates subtle linguistic variations (paraphrases) reflecting how different users express the same search intent. This helps build diverse test patterns for multi-faceted evaluation of AI search behavior.

Customer Testimonials (Selected Excerpts)

Since its release, the feature has already been adopted by numerous companies. Below are selected testimonials from actual users:

*Individual opinions; results are not guaranteed.

Marketing Manager, Major Elder Care Company "We struggled to come up with more than a few prompt ideas on our own. Thanks to this feature, we can now approach prompt strategy comprehensively."

Marketing Manager, Global Company "We appreciated how it categorizes and generates prompts aligned with purchase phases like 'comparison' and 'problem solving'."

Marketing Manager, Major IT Company "Receiving prompts tailored to each user purchase phase has led to new insights and discoveries—very helpful indeed."

Marketing Manager, Major D2C Company "By pre-entering our industry, sector, and company website, the generated prompts became highly accurate."

Marketing Manager, Major Specialty Trading Company "When we selected 'generate paraphrases' during prompt creation, the output closely matched our intended prompt style, improving accuracy."

Marketing Manager, Publicly Listed Company "The realistic prompts extracted can likely be used directly as content headlines or structural outlines."

Marketing Manager, Major Real Estate Company "This has vastly increased the amount of user-centric reference information available when creating content."

Marketing Manager, Major Power Company "It also seems useful for researching optimal topics to link internally as 'related articles' within content."

Major Agency "During client meetings, prompt expansion serves as a strong hook, enabling us to make concrete marketing proposals."

Major Agency "It generates highly accurate prompts tailored to each client. We can even proceed directly to AI search monitoring, making it easy to propose."

Future Outlook

Faber Company will continue updating its integrated Google and Anthropic LLMs to the most optimal versions available and will persist in ongoing development for further feature enhancements. Mieru-ca aims to comprehensively solve marketing challenges in the AI search era and establish a new standard in AI search marketing.

How to Use

This feature is available as an optional add-on for Mieru-ca GEO or Mieru-ca SEO. It can be used upon additional subscription. Customers already subscribed to the 'AI Search Share Monitoring' plan can use this feature at no extra cost.

Those not yet subscribed can try it for free via the links below:

· Mieru-ca GEO ▶ https://mieru-ca.com/geo/

· Mieru-ca SEO ▶