1. Overview

Logos AI Writer is an advanced AI-driven authoring solution designed to support the creation of original, brand-compliant content for marketing and corporate communications across Stellantis divisions.

The tool will be customized jointly with Stellantis, combining Logos’s AI expertise with Stellantis’s linguistic assets, style guides, and authoring governance.

Built on advanced Large Language Model (LLM) technology, Logos AI Writer guides authors in generating original content through structured prompts, dynamic templates, and retrieval of approved corporate resources. The system is designed to integrate with the existing myLogosys ecosystem, ensuring continuity with Stellantis translation memories, terminology databases, and controlled language processes.

Rather than a generic text generator, Logos AI Writer serves as a co-pilot for professional writing - assisting communication teams in drafting content that is engaging, factually accurate, and stylistically aligned with Stellantis’s identity. Each output is dynamically influenced by content type, audience, tone, and brand personality.

The system’s goal is to augment-not replace-human creativity, enabling Stellantis teams to generate accurate, engaging, and reusable content more efficiently, while maintaining full control over brand and tone.

2. Specifications

AI-Driven Authoring Framework

At its core, Logos AI Writer uses LLMs guided by structured prompts that define the intent, tone, and level of creativity.
Prompt layers include:

• Global rules (corporate tone and structure).
• Style prompts selected according to document type.
• Brand and domain prompts retrieving relevant data from Stellantis-approved sources.
• Validation prompts ensuring compliance with writing and terminology rules before finalization.

Authors can generate, refine, or rephrase content interactively, with the system offering suggestions for clarity, conciseness, and brand consistency.

Real-Time Knowledge Integration via RAG

Logos AI Writer employs a Retrieval-Augmented Generation (RAG) mechanism to ensure factual accuracy and contextual relevance. Before generating any content, the LLM queries Stellantis’s validated resources:

• Terminology databases (brand-specific termbases and lexicons).
• Corporate knowledge bases (internal documentation, press materials, technical overviews).
• Translation memories and previously approved texts, accessible through secure APIs.

This ensures that all outputs are grounded in verified, domain-specific content, reducing hallucination risks and aligning text with Stellantis’s internal communication standards.
The RAG layer continuously learns from new validated content, ensuring the model evolves with Stellantis’s evolving communication strategy.

Adaptive Style and Template Management

A key differentiator of Logos AI Writer is its adaptive template engine.
Templates define content structure (e.g., headline, lead paragraph, quote block, CTA) and are dynamically combined with style prompts to match the communication objective. For example:

• Press Release Template: Concise structure, factual tone, emphasis on brand authority.
• Corporate Speech Template: Persuasive narrative flow, emotional resonance, and alignment with executive voice.
• Marketing Campaign Template: Engaging, benefits-driven content optimized for cross-media reuse.

Users or teams can configure their own templates, upload reference materials, and adjust tone parameters such as formality, empathy, assertiveness, and creativity.

All configurations are stored in the myLogosys secure workspace, ensuring consistency across projects and contributors.

Content can be exported in HTML for integration with content management systems or web publishing or Microsoft Word formats, with the option to use Stellantis-branded Word templates ensuring consistent formatting and ready publication.

 

Integration with myAuthoring Assistant

Logos AI Writer natively connects with myAuthoring Assistant, Logos’s controlled language solution already in use for Stellantis technical and marketing authoring.
This integration enables:

• Terminology validation: Automatic replacement or suggestion of approved terms during drafting.
• Language control: Enforcement of stylistic rules and simplification of complex phrases for clarity and translatability.
• Reuse of validated content: Retrieval of previously approved sentences or paragraphs from translation memories for partial reapplication or adaptation.

This tight integration ensures that all generated content adheres to Stellantis’s linguistic and stylistic standards before entering the translation or publication pipeline.

Architecture and Security

• Hosting: within Logos’s ISO 27001-certified infrastructure, fully GDPR-compliant.
• Access Control: role-based permissions for authors, reviewers, and approvers.
• Integration: REST APIs enable connectivity with Stellantis CMS, DAM, and review platforms.
• Audit Trail: every session and generated document is logged, ensuring transparency and data integrity.

Benefits

• Collaborative development: tailored to Stellantis’s voice, processes, and governance.
• Efficiency: reduces drafting time and review effort by up to 60%.
• Consistency: enforces unified tone and terminology across brands and regions.
• Quality and compliance: integrates controlled language and approved terminology at the source.
• Scalability: supports multilingual adaptation through direct connection to translation workflows.
• Cost optimization: improved content reuse and translation leverage reduce overall localization costs.

Conclusion

Logos AI Writer will provide Stellantis with a secure, intelligent, and configurable authoring environment. By combining advanced language technology, controlled authoring principles, and direct integration with Stellantis assets, it will enable faster, more consistent, and brand-accurate communication across all channels—while preserving full editorial control and human oversight.

Figure 1Custom Generation template for Stellantis PR

 

Figure 2 Knowledge base management interface