Reasoning-Focused LLM Fine-Tuning

Is your AI
running rough?

We don't just tune models — we teach them to reason. Cause and effect. What changes when you intervene. What would have happened if things were different. A 7B model trained to reason scores 96.96% on a public benchmark. GPT-4o scores 72%.

Your model, our garage.
TunedAI LABS TunedAI
96.96%
CLadder benchmark score
on our causal reasoning model
7B
Parameters — open-source,
free to run anywhere
+25%
Above GPT-4o on the same
publicly verifiable benchmark
Verified Results

Smaller model.
Better answers.

We took Qwen 2.5-7B — a free, open-source model anyone can download — and trained it to reason: to understand cause and effect, distinguish correlation from causation, and think through what would happen if you changed something. Run the benchmark yourself.

Model Score Accuracy Notes
TunedAI Labs — Qwen 2.5-7B 96.96%
96.96%
7B params · open-source · fine-tuned
GPT-4o ~72%
72%
General purpose · closed source
Claude 3.5 Sonnet ~68%
68%
General purpose · closed source
Base Qwen 2.5-7B ~62%
62%
Same model · no fine-tuning

CLadder benchmark — 10,000+ questions. Public. Independently runnable. Verify it yourself →

Under the Hood

How a tune-up works.

We take an existing open-source model and train it to reason in your domain — not just to score better on tests, but to understand cause and effect, ask the right questions, and know when a conclusion actually follows from the evidence. You own the result forever.

Step 01

Diagnose the problem

We benchmark your current model against your actual task. No guessing — you see exactly where it's underperforming before we touch anything.

Step 02

Build the training set

We curate high-quality examples of the task done correctly. This is where most fine-tuning fails — we specialize in training data that teaches reasoning, not surface-level pattern matching.

Step 03

Train to reason, then verify

We train the model specifically to reason — not just to pattern-match answers. Then we measure reasoning performance on a held-out benchmark. You get before and after numbers, not just our word that it improved.

Why Open Source

Own your model.
Own your costs.

Every API call to a closed-source model is a recurring bill you don't control, on servers you don't own, with a provider who can change pricing or go down anytime. A fine-tuned open-source model eliminates all of that.

💰

Dramatically lower cost

A fine-tuned 7B model on your own hardware costs a fraction of a GPT-4o API call. At scale, the difference is orders of magnitude.

🔒

Your data stays private

No API call means no data leaving your environment. Critical for healthcare, legal, finance, and defense where data cannot touch a third-party server.

No vendor dependency

OpenAI deprecates models. Anthropic changes pricing. A fine-tuned model you own runs the same way forever, regardless of what any vendor decides.

🎯

Reasons through your domain

A general model pattern-matches. A reasoning-trained model understands cause and effect in your domain — why a diagnosis follows from symptoms, why a clause creates liability, why a signal indicates a threat. The benchmark above shows what that difference looks like.

Open-Source vs. Closed-Source API
Open-Source
Closed API
Cost per query~$0.00002~$0.015
Data privacy100% localSent to vendor
Model ownershipYou own itRented
Deprecation riskNoneHigh
Domain accuracyFine-tuned ✓General
LatencyOn your hardwareAPI round-trip

Cost estimate at 1M queries/month. Closed API based on GPT-4o pricing. Open-source assumes A100 cloud GPU amortized over 24 months.

What We Do

Full-service garage.

We work with teams whose models need to reason — not just retrieve or rephrase, but actually understand cause and effect in their domain. General-purpose models weren't built for that. We are.

🔧

Reasoning Fine-Tuning

We train an open-source model to reason in your domain — legal, medical, financial, security, or any field where the model needs to understand cause and effect, not just match patterns. You get the weights and run the model anywhere.

Most Popular
📊

Benchmark & Evaluation

We design a benchmark for your task and measure performance before and after. You get a verifiable number — not a vague claim of "improvement."

Always Included
🗂️

Training Data Curation

Most fine-tuning fails because of bad training data. We build the dataset that actually teaches reasoning — not surface-level pattern matching. This is the hard part.

The Hard Part
🚀

Deployment Support

We help you deploy the fine-tuned model in your environment — on-premise, private cloud, or air-gapped. We write the inference API and integrate with your stack.

Optional Add-On
🔄

Iterative Improvement

Fine-tuning is not a one-time event. As your use case evolves, we retrain with new data and measure the delta. Ongoing relationship, not a one-off project.

Retainer Option
🔬

Research Collaboration

If you have a novel reasoning problem — something no existing model handles well — we research and develop a fine-tuning approach from scratch. We publish when appropriate.

Custom Scope
Get Started

Tell us where your model stops reasoning.

We'll tell you whether reasoning fine-tuning can fix it, which model to start from, and what a realistic benchmark score looks like. No commitment — just an honest conversation about whether we can actually help.

Or email us directly: hello@tunedailabs.com