diff --git a/eval/r1/__init__.py b/eval/r1/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/eval/r1/eval.py b/eval/r1/eval.py
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+++ b/eval/r1/eval.py
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+import argparse
+import json
+import logging
+import os
+from dataclasses import asdict
+from datetime import datetime
+from typing import Any, Dict, List
+
+import requests
+from eval_config import EvalConfig
+from requests.exceptions import RequestException
+from tenacity import retry, retry_if_exception_type, stop_after_attempt, wait_exponential
+
+import reasoning_gym
+from reasoning_gym.utils import extract_answer
+
+
+class OpenRouterEvaluator:
+    def __init__(self, model: str, config: EvalConfig):
+        self.logger = logging.getLogger(f"OpenRouterEvaluator.{model}")
+        self.config = config
+        self.output_dir = f"{config.eval_dir}/{config.category}"
+        os.makedirs(self.output_dir, exist_ok=True)
+        self.base_url = "https://openrouter.ai/api/v1/chat/completions"
+        self.api_key = os.getenv("OPENROUTER_API_KEY")
+        self.model = model
+        self.headers = {
+            "Authorization": f"Bearer {self.api_key}",
+            "HTTP-Referer": os.getenv("OR_SITE_URL", "localhost"),
+            "X-Title": os.getenv("OR_APP_NAME", "Model Evaluation"),
+            "Content-Type": "application/json",
+        }
+
+    def save_results(self, results: List[Dict[str, Any]], dataset, dataset_name) -> Dict[str, Any]:
+
+        file_name = f"{self.output_dir}/{dataset_name}.json"
+        total_score = sum(r["score"] for r in results)
+
+        metrics = {
+            "dataset_name": dataset_name,
+            "model": self.model,
+            "size": dataset.size,
+            "provider": self.config.provider,
+            "average_score": total_score / len(results) if results else 0,
+            "total_examples": len(results),
+            "timestamp": datetime.now().isoformat(),
+            "config": asdict(dataset.config),
+            "results": results,  # save results to allow for performance recalculation
+        }
+
+        with open(file_name, "w") as f:
+            json.dump(metrics, f, indent=2)
+        return metrics
+
+    def prepare_messages(self, prompt: str) -> List[Dict[str, str]]:
+        messages = [
+            {"role": self.config.developer_role, "content": self.config.developer_prompt},
+            {"role": "user", "content": prompt},
+        ]
+        payload = {
+            "model": self.model,
+            "messages": messages,
+            "provider": {"order": ["Nebius"], "allow_fallbacks": False},
+        }  # make sure only one provider is used
+
+        return payload
+
+    @retry(
+        retry=retry_if_exception_type(RequestException),
+        stop=stop_after_attempt(5),
+        wait=wait_exponential(multiplier=1, min=4, max=60),
+    )
+    def get_model_response(self, prompt: str) -> str:
+        """Get response from the model via OpenRouter API."""
+
+        payload = self.prepare_messages(prompt)
+        try:
+            response = requests.post(self.base_url, headers=self.headers, json=payload, timeout=30)
+            response.raise_for_status()
+        except requests.exceptions.RequestException as e:
+            raise RequestException(
+                f"API request failed: {str(e)}", {"endpoint": self.base_url, "model": self.model}
+            ) from e
+        return response.json()["choices"][0]["message"]["content"]
+
+    def evaluate_datasets(self) -> List[Dict[str, Any]]:
+        """Evaluate model on multiple datasets with their respective configurations."""
+        all_results = []
+
+        for dataset_name in self.config.datasets:
+            self.logger.info(f"\nEvaluating dataset: {dataset_name}")
+
+            # Create dataset with its specific configuration
+            dataset = reasoning_gym.create_dataset(
+                dataset_name, size=self.config.dataset_size, seed=self.config.dataset_seed
+            )
+            results = []
+
+            for i, entry in enumerate(dataset):
+                print(f"On example {i+1} of {len(dataset)}")
+                response = self.get_model_response(entry["question"])
+                model_answer = extract_answer(response)
+
+                score = dataset.score_answer(answer=model_answer, entry=entry)
+
+                result = {
+                    "question": entry["question"],
+                    "expected_answer": str(entry["answer"]),
+                    "model_answer": model_answer,
+                    "score": score,
+                    "metadata": str(entry["metadata"]),
+                }
+                results.append(result)
+
+            metrics = self.save_results(results, dataset, dataset_name)
+
+            all_results.append({"metrics": metrics, "results": results})
+
+        return all_results
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Evaluate models on reasoning datasets")
+    parser.add_argument("--yaml", required=True, help="Path to YAML configuration file")
+
+    args = parser.parse_args()
+    config = EvalConfig.from_yaml(args.yaml)
+    output_dir = f"{config.eval_dir}/{config.category}"
+    os.makedirs(output_dir, exist_ok=True)
+
+    evaluator = OpenRouterEvaluator(model=config.model, config=config)
+    all_results = evaluator.evaluate_datasets()
+
+    with open(f"{output_dir}/summary.json", "w") as f:
+        json.dump(all_results, f, indent=2)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/eval/r1/eval_config.py b/eval/r1/eval_config.py
new file mode 100644
index 00000000..9a6c96f6
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+++ b/eval/r1/eval_config.py
@@ -0,0 +1,25 @@
+from dataclasses import dataclass
+from typing import List, Union
+
+import yaml
+
+from reasoning_gym.utils import SYSTEM_PROMPTS
+
+
+@dataclass
+class EvalConfig:
+    category: str
+    datasets: Union[str, List[str]]
+    eval_dir: str
+    dataset_size: int
+    dataset_seed: int
+    model: str = "deepseek/deepseek-r1"
+    provider: str = "Nebius"
+    developer_role: str = "system"
+    developer_prompt: str = SYSTEM_PROMPTS["DeepSeekZero"]
+
+    @classmethod
+    def from_yaml(cls, yaml_path: str):
+        with open(yaml_path, "r") as f:
+            config = yaml.safe_load(f)
+        return cls(**config)
diff --git a/eval/r1/yaml/algebra.yaml b/eval/r1/yaml/algebra.yaml
new file mode 100644
index 00000000..b95c1e31
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+++ b/eval/r1/yaml/algebra.yaml
@@ -0,0 +1,13 @@
+model: deepseek/deepseek-r1
+category: algebra
+datasets:
+  - intermediate_integration
+  - polynomial_equations
+  - polynomial_multiplication
+  - simple_equations
+  - simple_integration
+  - complex_arithmetic
+eval_dir: eval/r1
+dataset_size: 50
+dataset_seed: 42
+developer_role: system
diff --git a/eval/r1/yaml/algorithmic.yaml b/eval/r1/yaml/algorithmic.yaml
new file mode 100644
index 00000000..c1c043ce
--- /dev/null
+++ b/eval/r1/yaml/algorithmic.yaml
@@ -0,0 +1,25 @@
+model: deepseek/deepseek-r1
+category: algorithmic
+datasets:
+  - base_conversion
+  - binary_matrix
+  - caesar _cipher
+  - group_anagrams
+  - isomorphic_strings
+  - letter_counting
+  - letter_jumble
+  - number_filtering
+  - number_sorting
+  - palindrome
+  - ransom_note
+  - rotate_matrix
+  - sentence_reordering
+  - spell_backward
+  - spiral_matrix
+  - word_ladder
+  - word_sequence_reversal
+  - word_sorting
+eval_dir: eval/r1
+dataset_size: 50
+dataset_seed: 42
+developer_role: system
diff --git a/eval/r1/yaml/cognition.yaml b/eval/r1/yaml/cognition.yaml
new file mode 100644
index 00000000..911a92e5
--- /dev/null
+++ b/eval/r1/yaml/cognition.yaml
@@ -0,0 +1,11 @@
+model: deepseek/deepseek-r1
+category: cognition
+datasets:
+  -  color_cube_rotation
+  -  figlet_font
+  -  number_sequence
+  -  rubiks_cube
+eval_dir: eval/r1
+dataset_size: 50
+dataset_seed: 42
+developer_role: system
diff --git a/eval/r1/yaml/logic.yaml b/eval/r1/yaml/logic.yaml
new file mode 100644
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--- /dev/null
+++ b/eval/r1/yaml/logic.yaml
@@ -0,0 +1,11 @@
+model: deepseek/deepseek-r1
+category: logic
+datasets:
+  - propositional_logic
+  - self_reference
+  - syllogism
+  - zebra_puzzles
+eval_dir: eval/r1
+dataset_size: 50
+dataset_seed: 42
+developer_role: system