The Importance of Brand Voice Customization with AI Generators
Last Updated on
July 14, 2025
Published:
July 14, 2025

By Jayne Schultheis — Your brand has a unique voice that showcases your unique values. You establish a brand voice through your communication style to give your brand a certain personality. It also can help to differentiate your company from competitors.
Just because we're in the age of AI generators, it doesn't mean you have to sacrifice your brand's voice. You have a lot invested in your brand voice, and AI content generators often lack the ability to get it right. They produce content that can be jarringly bland.
However, the right AI technology can help you with brand voice customization. By incorporating custom prompting, content generators can reproduce the voice that you have so carefully developed.
Why is brand voice important?
Brand voice helps to establish a consistent and recognizable identity for your business, which helps build trust and loyalty among your audience.
A consistent brand voice also increases the effectiveness of your communication across all platforms, so your messaging resonates with your target audience and reinforces your brand's core message. This continuity strengthens your brand recognition and contributes to an overall cohesive brand experience.
When you think about some of your favorite brands, what are some words that come to mind when you envision their advertisements? Apple is confident, minimalist, and clear. Dove is inclusive, body-positive, and empowering. Across their messaging, whether verbal, visual, or audio, you'll see these characteristics shine through.
What's the difference between brand voice and tone?
Brand voice and tone are related but distinct concepts in the realm of branding and communication.
Brand voice refers to the consistent personality and style that a brand adopts in its communications. It includes the choice of words, the attitude, and the values that the brand wishes to convey. It typically stays constant across all channels and interactions.
Think of brand voice as the character or persona of the brand that helps it stand out and be recognizable to its audience.
Tone, on the other hand, is more about the emotional inflection applied to the brand's voice. That means it can vary, and depends on the context, audience, or situation. While the brand voice remains consistent, the tone can change to suit different scenarios, such as being more formal in a business proposal or more casual in a social media post.
Using a variety of tones with different communication styles can highlight your brand's inclusivity and flexibility.
Essentially, while brand voice is the steady personality of a brand, tone is the adaptable emotional nuance that can change according to specific circumstances. Your brand's voice and tone should work together to strengthen your appeal to consumers.
You can improve both of these qualities by listening to the way your community describes your brand and shares their experiences.
Can AI tools enable brand voice customization?
Using brand voice customization in an AI tool is crucial for several reasons:
- Consistency. Maintaining a consistent brand voice is part of building trust and recognition among clients and partners. Content that doesn't fit your voice will chip away at the bond you have with your public. The guidelines you develop and provide to freelance writers, or your team of in-house writers, can be part your brand voice customization for any content generation tools you use.
- Differentiation. Machine learning and associated digital innovations have made it very cost-effective to generate content. However, that content can have a certain sameness—call it Generic AI—if you don't take pains to give it some life. In addition, part of the value of a brand voice comes from the way it makes you stand out in the crowded marketplace. AI generators with brand voice customization can produce content that distinguishes you from your competitors and Generic AI.
- Customer engagement. A well-defined brand voice can boost customer engagement by making interactions more relatable and authentic. When it's done well, AI content with intentional personalization can lead to stronger relationships and increased customer loyalty.
- Relevance and context. When you tailor the AI tool to the specific nuances of your brand, it keeps the communication relevant and contextually appropriate. This is particularly important in B2B settings where professionalism and precision are at the center of communication.
- Efficiency. When you're able to embed brand voice customization, AI tools can automate communications without sacrificing the personal touch that clients and partners expect. You can increase operational efficiency while maintaining quality. More content, done faster and better.
Overall, brand voice customization in AI tools helps align this budding technology with business objectives, so that communication remains effective and in line with the brand's strategic goals.
Which AI generators provide brand voice customization?
When it comes to AI use in blogging, several LLM generators and AI writing tools offer brand voice customization to help businesses maintain consistency in their communications. These include:
OpenAI's ChatGPT
This platform allows for fine-tuning to align with specific brand tones and styles. Users can create custom GPTs with specific instructions and examples that define their brand voice, or use system prompts to guide responses. The platform also supports conversation memory and custom instructions that help maintain brand consistency across multiple interactions.
Jasper AI
Known for its versatility, Jasper AI provides tools to customize content according to your brand's voice. The platform features a "Brand Voice" function where users can input sample content to train the AI on their specific tone, style, and messaging preferences. Jasper also offers pre-built templates and tone settings that can be customized to match industry-specific or company-specific communication styles.
Copy.ai
This tool offers features that let you adjust the tone and style of the content to match your brand's identity. Users can select from various tone options (professional, casual, enthusiastic, etc.) and create custom brand voice profiles by uploading existing content samples for the AI to analyze and replicate. The platform also includes collaborative features that allow teams to maintain consistent brand voice across different users and projects.
Writesonic
With options to tailor the tone and style, Writesonic helps you to create marketing content that resonates with your brand's voice. The platform includes a brand voice analyzer that studies your existing content to automatically detect and replicate your preferred writing style and tone. Additionally, Writesonic offers industry-specific templates and allows users to set custom guidelines that the AI references when generating new content.
Rellify
Rellify offers a SmartBrief where you can input customization for your brand's voice before you start writing. You can input several informative brand parameters and customize your prompting, with fields like:
- Voice and tone
- Audience persona
- Audience expertise
- Company knowledge
- Tone, phrasing, and verbiage to avoid
- Perspective
When you write in the application, the AI generation tools all incorporate this information in prompting. You can swiftly and precisely create guidelines for both human writers and AI generation that keeps your voice consistent, and your tone malleable to different contexts and audiences.
Rellify can make your brand voice shine
As you establish your brand as an expert in your field, maintenance of a consistent voice across marketing is crucial for building trust and authority. That's why we include brand voice customization in our offerings.
But when it comes to an expert content strategy, equally as important is choosing the right themes, topics, and keywords on which to focus. Every brand can benefit from its own Relliverse™—a dynamic, ever-evolving ecosystem of topics, keywords, competitors, and audience expectations.
Contact a Rellify expert today for a brief demo and find out how to revolutionize your content marketing processes with the power of AI.