---
license: apache-2.0
base_model: allenai/Olmo-3-1025-7B
library_name: transformers
tags:
  - math
  - sft
  - lora
  - think
  - task-vector
  - iclr2027
---

# math-think-o7b-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 | **51** | 124 |
| Same-run Think Base | 34 |  |

Think mode; stop ids [100257, 100265]; O7B eval uses OLMO3-VLLM-PATCH-v1 / vLLM 0.27.1. Same-run Think Base is think_vllm027 34/240 (first think Base attempt failed).

θ_0 is `allenai/Olmo-3-1025-7B` rev `996971efdc504b81f0a6caf73a6c92f976254b9c`.

## 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 [100257].

## Identity

| Field | Value |
|---|---|
| Arm | `O7B-THINK-A3B` |
| Updates / tokens | 987 / 64,632,872 |
| Merged `model.safetensors` sha256 | `9f75574aed1be033f277a0384b97f4edef3f8ac85401c6781e59c1d46737d526` |
| Endpoint adapter sha256 | `9da5899df6a1d6d7cfb9e412085eed9a85693bd0fd848645b176e34deed0d8e2` |

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

```python
from transformers import AutoModelForCausalLM, AutoTokenizer
m = AutoModelForCausalLM.from_pretrained("modrill/math-think-o7b-20260908", torch_dtype="bfloat16", device_map="auto")
tok = AutoTokenizer.from_pretrained("modrill/math-think-o7b-20260908")
```