Begin with a readable brief, not a nest of settings and half-named files.
THE WORD COMES FIRST
You focus on character design, we'll handle the finetuning.
Write how the model should speak, refuse, remember, and behave. TunerBench turns that language into examples, checks, and a model bundle without the Machine Learning team.
WHY
Better models start with better language.
A model inherits the care, looseness, and contradictions of the words used to shape it. TunerBench is for people who know the voice they want and need a clear way to turn that judgment into training material they can inspect, revise, and keep.
Review the examples before training so the model follows the intent, not the accident.
Leave with the model and the dataset, not just a chat window you cannot take apart.
PLATFORM
From sentence to working model, without losing the thread.
Each stage leaves a readable page behind: the brief, the spec, the examples, the training run, and the final bundle. You keep moving, but the words stay visible.
Built for
Companion voices
Character dialogue
Offline helpers
Private assistants
FAQ
Answers for people shaping custom models.
01
Do I need to know fine-tuning?
No. You need to know what the model should say, avoid, and sound like. TunerBench turns that judgment into the working pieces around it.
02
What do I start with?
Start with an ordinary written description of the character, assistant, or behavior. The product asks follow-up questions when the brief needs sharper edges.
03
What is it best for today?
It is currently best for custom characters and specialized assistants where tone, boundaries, and behavior matter.
04
Can I review the words before training?
Yes. You can inspect the spec, read the examples, and see what gets accepted or rejected before training begins.
05
What does TunerBench handle?
It helps turn intent into a usable spec, drafts training examples, filters weak or off-target material, runs the training workflow, and gives you a model you can test.
06
Can I read and try the result first?
Yes. You can test the tuned model in a temporary playground and check whether the behavior matches the brief before taking the outputs with you.
07
Do I get the dataset too?
Yes. The final model output and the structured JSONL dataset are yours to keep.
08
Is this still beta?
Yes. TunerBench is live and usable today, and we are working with early users to refine the places where the wording, review, and control should be sharper.
BETA
Bring a real voice to TunerBench.
The product is live and usable. We are looking for early users who care about the exact words their custom characters and assistants inherit.
We will email you as access opens.