diff --git a/aime_eval.py b/aime_eval.py
new file mode 100644
index 00000000..8ea18562
--- /dev/null
+++ b/aime_eval.py
@@ -0,0 +1,80 @@
+"""
+"""
+
+import random
+import re
+
+import pandas
+
+from . import common
+from .common import (
+    HTML_JINJA
+)
+from .types import Eval, EvalResult, SamplerBase, SingleEvalResult
+
+
+import random
+import re
+from typing import Literal
+
+import pandas
+
+from . import common
+from .common import ANSWER_PATTERN, HTML_JINJA, check_equality
+from .types import Eval, EvalResult, SamplerBase, SingleEvalResult
+
+QUERY_TEMPLATE = """
+Solve the following math problem step by step. The last line of your response should be of the form Answer: $ANSWER (without quotes) where $ANSWER is the answer to the problem.
+
+{problem}
+
+Remember to put your answer on its own line after "Answer:", and you do not need to use a \\boxed command.
+""".strip()
+
+
+class AiMEEval(Eval):
+    def __init__(
+        self,
+        equality_checker: SamplerBase,
+        num_examples: int | None = None,
+        n_repeats: int = 16,
+        split: Literal["aime25-1", 'aime25-2', "aime24"] = "aime25-1",
+    ):
+        split_map = {
+            "aime25-1": "test2025-I",
+            "aime25-2": "test2025-II",
+            "aime24": "test2024",
+        }
+        df = pandas.read_json(
+            f"https://raw.githubusercontent.com/GAIR-NLP/AIME-Preview/refs/heads/main/eval/data/aime/{split_map[split]}.jsonl",
+            lines=True
+        )
+        examples = [row.to_dict() for _, row in df.iterrows()]
+        if num_examples:
+            assert n_repeats == 1, "n_repeats only supported for num_examples = None"
+            rng = random.Random(0)
+            examples = rng.sample(examples, num_examples)
+        self.examples = examples * n_repeats
+        self.equality_checker = equality_checker
+
+    def __call__(self, sampler: SamplerBase) -> EvalResult:
+        def fn(row: dict):
+            prompt_messages = [
+                sampler._pack_message(content=QUERY_TEMPLATE.format(**row), role="user")
+            ]
+            response_text = sampler(prompt_messages)
+            match = re.search(ANSWER_PATTERN, response_text)
+            extracted_answer = match.group(1) if match else None
+            score = float(check_equality(self.equality_checker, row["answer"], extracted_answer))
+            html = common.jinja_env.from_string(HTML_JINJA).render(
+                prompt_messages=prompt_messages,
+                next_message=dict(content=response_text, role="assistant"),
+                score=score,
+                correct_answer=row["answer"],
+                extracted_answer=extracted_answer,
+            )
+            convo = prompt_messages + [dict(content=response_text, role="assistant")]
+            return SingleEvalResult(html=html, score=score, convo=convo)
+
+        results = common.map_with_progress(fn, self.examples)
+        return common.aggregate_results(results)
\ No newline at end of file
diff --git a/simple_evals.py b/simple_evals.py
index ceaa8c2a..0c0809b3 100644
--- a/simple_evals.py
+++ b/simple_evals.py
@@ -8,6 +8,7 @@
 from .math_eval import MathEval
 from .mgsm_eval import MGSMEval
 from .mmlu_eval import MMLUEval
+from .aime_eval import AiMEEval
 from .simpleqa_eval import SimpleQAEval
 from .sampler.chat_completion_sampler import (
     OPENAI_SYSTEM_MESSAGE_API,
@@ -149,12 +150,18 @@ def get_evals(eval_name, debug_mode):
                     grader_model=grading_sampler,
                     num_examples=10 if debug_mode else num_examples,
                 )
+            case "aime":
+                return AiMEEval(
+                    equality_checker=equality_checker,
+                    num_examples=num_examples,
+                    n_repeats=1 if debug_mode else 10,
+                )
             case _:
                 raise Exception(f"Unrecognized eval type: {eval_name}")
 
     evals = {
         eval_name: get_evals(eval_name, args.debug)
-        for eval_name in ["simpleqa", "mmlu", "math", "gpqa", "mgsm", "drop", "humaneval"]
+        for eval_name in ["aime", "simpleqa", "mmlu", "math", "gpqa", "mgsm", "drop", "humaneval"]
     }
     print(evals)
     debug_suffix = "_DEBUG" if args.debug else ""