Glossia
Language OS
Glossia captures your linguistic preferences in one place so linguists and teams can shape how your organization speaks across every language and surface.
Why a language OS
Your organization already has systems for code, design, and data. Language deserves the same level of care.
All of your linguistic preferences live in one place. Every team draws from the same foundation, so your organization sounds consistent whether it is a product screen, a marketing campaign, or a support reply.
The same linguistic foundation that keeps your content consistent also powers expansion into new languages. Linguists refine the voice once, and every market benefits from that work immediately.
Built on the foundation, ready for your use cases
We build solutions on top of the language OS, and you can build your own. The same foundation powers everything.
Agentic localization and content revisiting
AI agents translate, adapt, and refine your content, guided by your linguistic preferences. When context changes, the system knows what is affected and revisits it automatically.
Context graph
A queryable map that connects your voices, terminology, audiences, and rules. Agents and integrations query it at runtime, so every decision a linguist makes flows through to every piece of content it touches.
Open integrations
Build your own solutions on top of the foundation through REST APIs and MCP. Connect your writing platforms, content systems, and AI assistants to your organization's linguistic knowledge.
Linguist-centered collaboration
Linguists review, refine, and approve content directly. They are not at the end of a chain but at the center, shaping how your organization speaks before anything ships.
A collaborative platform for your linguistic identity
One place where linguists and language managers define how an organization speaks, track every change, and collaborate across projects. Think of it as what GitHub did for software teams, but for the people who shape language.
Organizations and projects
Create an organization, invite your team, and organize work into projects. Each project has its own voices, terminology, and rules that linguists iterate on together.
Version everything
Every change to a voice, terminology entry, or rule is versioned. See what changed, who changed it, and why. Roll back when needed.
Linguists at the center
Linguists contribute across multiple organizations, refine preferences, and see the impact of their decisions propagate through the system in real time.
The more specific the context, the closer to the content
Global definitions on Glossia set the baseline for your organization. Project-level context narrows the scope. The result: every agent gets exactly the right instructions without you repeating yourself.
Project context (repository example)
L10N.md files sit alongside your content. They carry instructions, tone guidance, and per-language overrides that scope context to exactly where it is needed.
- L10N.md
-
LANGUAGE/
- es.md
- ja.md
-
docs/
- L10N.md
-
guide/
- intro.md
On Glossia
Voices, terminology, audience profiles, and style rules live on the platform. They are shared across every project in your organization and versioned so nothing gets lost.
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Organization
- Voices
- Terminology
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Project A
- Linked repo
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Project B
- Linked repo
Built for the people who shape how organizations speak
Whether you define the voice, manage the workflows, or build the products, Glossia gives you a shared system to work from.
Linguists and translators
Refine voice definitions, update terminology, and review content directly. Your expertise becomes the foundation that agents and integrations draw from across every project.
Language managers
Stop gluing tools together. Glossia is the system you have been looking for: one place to maintain terminology, enforce consistency, and coordinate across teams and projects.
Product and engineering teams
Integrate linguistic context into your existing tools and workflows through APIs and MCP. Your content stays consistent without adding manual steps to the development process.
FAQ
Why build this now?
For the first time in history, we have tools that can capture context and interact with the outside world to produce and transform content across languages. LLMs changed what is possible, but possibility alone is not enough. You need a system that orchestrates those capabilities reliably: hashing to avoid redundant work, validation to catch errors, and retries to close the loop. On top of that, we build experiences for humans to review, correct, and enhance the system over time. That is what we are building from first principles and from years of experience building developer experiences and localization systems.
Do I need to bring my own models?
No. Glossia acts as a broker between your content and the models. We work with linguists to understand which models perform best at certain tasks and define those defaults for you, so you get the best experience combining the models, the system, and your context. The landscape is moving fast, and you want the flexibility to switch models quickly without rewiring your pipeline. Glossia gives you strong defaults out of the box while keeping the freedom to override with any provider you prefer.
Where do humans participate?
We are building experiences where humans take part in the agentic loops through interfaces that run in the browser or on the go. Implementation details like tools, models, and environments are abstracted away so reviewers can focus on the content itself. We are also designing agentic experiences for linguists to contribute directly to the system, refining voice, terminology, and quality standards without needing to touch config files or code.