Coding and software
Plan applications, write functions, debug errors, refactor code, design APIs, work with databases and create tests across common languages and frameworks.
Write, code, research, create—and get things done.
Debug an app, work agentically inside a supported code editor, research a current question, generate a realistic image, understand a file, write a proposal or sort out an everyday task. TREJJ One brings serious technical and creative work together.
“Review this code, find the bug, explain the fix and write tests for it.”
Try itFrom deep technical work to an ordinary busy day.
Bring code, a question, an image, readable data, rough notes or an unfinished idea. TREJJ One helps you understand it, improve it and move forward.
Realistic image creation
Generate photorealistic scenes, product concepts, portraits, posters, illustrations and brand visuals, then refine the lighting, style and details.
Research with sources
Investigate current questions, compare credible information, verify claims and receive links to the web sources used in the answer.
Writing and editing
Draft, rewrite, shorten, expand, summarise or polish emails, articles, reports, scripts, stories and long-form documents in the right voice.
Image understanding
Upload a supported image to identify details, explain what is visible, compare options, extract context or get practical visual feedback.
Files, source code and data
Ask questions about readable files, review source code, explain logs or structured data, clean up notes and turn supplied information into action points.
Maths and reasoning
Work through calculations, logic, comparisons, trade-offs and multi-step problems with a clear explanation of the approach.
Products and branding
Explore names, positioning, packaging, audience ideas, colour directions, launch copy and original visuals for a product or business.
Content and marketing
Create campaign directions, adverts, social posts, emails, captions, video scripts, content calendars and variations for different audiences.
Invoices and business documents
Organise the information for invoices, quotes, proposals, meeting notes, customer replies, simple policies and other working drafts.
CVs and career work
Shape a CV, cover letter, professional bio, portfolio copy, interview plan or application around your real experience and target role.
Learning and teaching
Break down difficult topics, create lesson or revision material, build practice questions and adapt an explanation to the learner’s level.
Small-business admin
Prepare checklists, workflows, FAQs, support replies, project briefs, process notes and organised plans that keep day-to-day work moving.
Planning and decisions
Structure a project, trip, event, routine or learning plan; compare choices; surface missing questions; and turn an idea into next steps.
Translation and tone
Translate supplied text, make it clearer, adjust formality, localise the tone and create versions suited to customers, colleagues or friends.
Ideas and creative work
Brainstorm names, stories, concepts, gifts, recipes, activities and fresh directions, then develop the strongest idea into something usable.
Agentic help where you build.
Eligible plans connect TREJJ One through Codex and supported IDEs on macOS, Linux, Windows and WSL. It can inspect your project, edit files, run development tools and carry a multi-step task through—while you review the work and stay in control.
Explore Agentic Access“Trace this production bug, preserve the existing API contract, add the fix and run the relevant tests.”
ExploreA second pair of hands for busy days.
You do not need to learn special commands. Start with what you know, say what good looks like and keep refining the result in the same conversation.
Bring your first taskRunning a business
“I need a quote, a customer email and three launch posts before lunch.”
Finding the next role
“Make my CV sharper, then help me practise the questions I am likely to get.”
Building and creating
“Explain this concept, help me code the prototype, then create a realistic product image.”
Start rough. Make it useful.
Bring what you have
A question, code snippet, rough notes, an image or a readable file is enough to begin.
Shape it together
Ask for a different tone, more detail, a shorter version or a completely new direction.
Use the result
Copy the text, keep working in chat or download your generated image when it is ready.
What TREJJ One can do—and what to know.
Use it for technical, creative, business, learning and everyday work. These answers cover the main capabilities, plans, files, privacy and sensible limits.
What can I use TREJJ One for?
TREJJ One can help you write, code, research current topics, reason through problems, create and understand images, work with readable files, study, plan and prepare everyday business or personal documents. You can begin with a complete brief, a rough idea or something unfinished.
Can TREJJ One write, explain and debug code?
Yes. It can help plan software, write and explain code, review a source file, trace errors, refactor functions, create tests, work with APIs and databases, and compare implementation approaches across common programming languages and frameworks. Always review and test code before deploying it.
What is Agentic Access?
Agentic Access connects an eligible TREJJ One plan through Codex and supported IDEs. It can inspect a local project, propose and make approved changes, run development tools and keep working through multi-step software tasks using the highest Agentic intelligence included in your plan.
Which systems and editors support Agentic Access?
TREJJ One provides setup for macOS, Linux, Windows and Windows Subsystem for Linux. Use it through Codex CLI or the Codex extension in Visual Studio Code, VS Code Insiders, Cursor and Windsurf.
What happens when my plan allowance is used?
Agentic Access pauses before beginning more work unless your Agentic Wallet has funds. Eligible users can make a one-time wallet top-up for immediate Agentic overage. Wallet funds do not unlock Agentic Access on a plan that does not include it.
Can it generate realistic images as well as illustrations?
Yes. TREJJ One can create realistic scenes, product concepts, portraits, brand visuals, posters, illustrations and other original images from a description. You can continue refining the composition, lighting, mood, colours and details in the conversation.
Can TREJJ One understand an image or file I upload?
Yes. You can upload a JPG, PNG or WebP image for visual analysis, or a supported readable text, data or source-code file for explanation, summarisation, review and question answering. File type and size limits are shown in the chat when you attach something.
Can it research current information and provide sources?
Yes. When a question needs current or verifiable information, TREJJ One can search the web and return source links with the answer. Check the cited sources before relying on important facts.
Can it help with writing and business documents?
Yes. Use it for articles, emails, reports, proposals, meeting notes, customer replies, invoices, quotes, CVs, cover letters, product descriptions, policies, presentations and marketing drafts. Review names, dates, prices and other important details before use.
Can it help with learning, analysis and planning?
Yes. TREJJ One can explain difficult topics, create revision material, compare options, analyse supplied information, work through maths and logic, structure a project, plan a trip or event, and turn a large task into practical next steps.
Can I use TREJJ One for free?
Yes. Free Mode includes One Nova for writing, coding, research, image creation and other supported tasks within the current free allowances. No payment card is required to start.
What happens when I download a generated image?
Images exported in Free Mode include a TREJJ One watermark. Paid plans let you download generated images without the watermark.
What is the difference between One Nova, Sage, Apex and Zenith?
One Nova is designed for fast everyday work. Sage adds stronger instruction following and research synthesis, Apex adds deeper reasoning for technical and multi-step work, and Zenith provides the highest intelligence level for the most demanding tasks.
Does TREJJ One keep my conversation history?
Your conversation history stays in your browser. TREJJ One does not keep server-side conversation history or use your chats for training. Removing browser storage or changing devices can remove access to that local history.
Should I check important answers?
Yes. AI can make mistakes. Review generated code, calculations, sources, contracts, invoices, health information and other consequential work before acting on it, and use a qualified professional where appropriate.
What do you want to build, understand, create or finish?
Bring the question, code, file, image or rough idea. TREJJ One will help you move it forward.