DR Tulu‑8B - an open model for deep scientific analysis capable of competing with OpenAI DR, and all this with only 8B parameters!

🟢 What's new?

Reinforcement Learning with Evolving Rubrics (RLER) for long, unverifiable tasks.

💡 Instead of static evaluations:
• Rubrics evolve together with the model
• Use knowledge from search
• Extract new information directly during training

📊 Results:
• DR Tulu‑8B is comparable to OpenAI DR
• Surpassed all open-source DR models
• Cost — ~ $0.00008 per query (compared to > $1 at OpenAI)

💥 Training in two stages: SFT → RL
Tested on 4 complex benchmarks and a new medical GeneticDiseasesQA (in collaboration with clinicians) — results better than OpenAI DR and AI2 ScholarQA (Claude).

Open methodology, real impact. AI that *learns to research by itself*.

Model & Code

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