math-think-q8b-20260908

Public freeze of Math Think 2ep endpoint for ICLR 2027 task-vector work. Not a chatbot. Endpoint is the score. Do not promote 1ep / 1.5ep milestones.

run_id=math_six_arms_train_v3_eot_20260908. Sibling of modrill/nothink-src-*-20260908; does not overwrite those repos.

Score (Exact-240)

AIME24+25 × seeds 42–45, EvalScope reviews, n=240. Authority field evalscope_reviews.correct.

Model Official /240 cap
This 2ep endpoint 53 155
Same-run Think Base 21

Think mode; stop ids [151643, 151645]; vLLM 0.25.1 audited runtime.

θ_0 is Qwen/Qwen3-8B-Base rev 49e3418fbbbca6ecbdf9608b4d22e5a407081db4.

Recipe

OpenR1 11750 rows × 2ep (unique problems 5875), LoRA r64/α128, lr 1e-4, TPU 65536, seed 42, EOT (Qwen tail 151643 / O7B tail 100257), B-rows both sides [151643, 151667, 151668].

Identity

Field Value
Arm Q8B-THINK-A3B
Updates / tokens 977 / 63,999,854
Merged model.safetensors sha256 483033ba2383756d86e9b1cb2850caf570c2ca8dea86bb3a462bbea115e3b2e2
Endpoint adapter sha256 19c57c62bf914b008a46ab06330733db7f0bcb58342f2833b512ab0c17058201

Root of merged weights is this repo. Endpoint LoRA is in adapter/. MERGE_RECEIPT.json is the merge audit. trainer_state is not uploaded.

Load

from transformers import AutoModelForCausalLM, AutoTokenizer
m = AutoModelForCausalLM.from_pretrained("modrill/math-think-q8b-20260908", torch_dtype="bfloat16", device_map="auto")
tok = AutoTokenizer.from_pretrained("modrill/math-think-q8b-20260908")
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