Builds files from proven solutions
Sol writes ECU and TCU files on top of our solution base — the changes proven over two decades of file work — and tailors them to the engine in front of it.
Agentic AI - S.O.L.
AI tuning file service — built and reviewed by S.O.L.
Sol is TuningBay's in-house AI. It builds and reviews ECU and TCU tuning files, trained on more than twenty years of file work and dyno logs, and it settles on one safe, sensible tune for each engine.
Powered by S.O.L. - the specialist AI model behind TuningBay
Trained on real ECU/TCU files, logs and operator decisions
Built for reviewed file work, not copied presets
What Sol does
Reviews every file before delivery
Sol checks its own work against what good looks like for that platform, so each file is examined before it ever reaches a customer.
Recommends one safe tune
For each job Sol settles on one safe, sensible result — the calibration that holds up in the real world, day after day.
Helps in six languages
Sol answers questions about stages, solutions and the right file in English, German, Spanish, Polish, French and Italian.
How Sol is built
Trained in-house on twenty years of files and dyno data.
Twenty years of file work
Sol is trained on two decades of real ECU and TCU files across the major controller families — the everyday work of a file house, not a generic dataset.
Dyno logs, not guesswork
Bench and road results sit behind Sol's judgement, so its recommendations are grounded in how engines actually respond.
Two neural networks, purpose-built
TuningBay trained its own neural networks for ECU and TCU work: a language model that understands the request and a dedicated model that operates directly on the binary — to our knowledge, the first of their kind built for the tuning file flow.
One safe approach.
Sol is built to be conservative where it counts. For every job it aims at one safe, repeatable result — the calibration that protects the engine and holds up day after day — and it flags anything that looks off.
A person stays in the loop. Sol does the heavy lifting and the review, and an operator can step in, inspect the work and sign off before a file goes out. That is what makes an AI-run file service something you can trust.
Need a finished file or an AI tuning workspace?
Use this AI tuning file service when you want S.O.L. to build and review the completed ECU or TCU file. If you want to learn the calibration logic or validate your own work, use AI Tuner instead.
Sol — questions, answered.
What is Sol?
Sol is TuningBay's in-house AI. It builds and reviews ECU and TCU tuning files, and helps customers pick the right solution for their engine. It is the AI at the centre of how TuningBay works.
What is Sol trained on?
Sol is trained on more than twenty years of real tuning files and dyno logs across the major controller families, so its judgement comes from genuine file work and measured results.
Is it safe?
Safety is the point. Sol is built to recommend one safe, sensible tune per job, and a human can review and sign off on anything before it is delivered. Important jobs always have a person in the loop.
Can Sol help me choose the right file?
Yes. Talk to Sol about your engine, stage and goals and it will guide you to the right solution — in any of six languages — before you order.