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

# math-nothink-o7b-20260908

Public freeze of Math NoThink **source expert** θ_s for ICLR 2027 task-vector transfer.
Not a chatbot. Endpoint is the score. Do not promote milestones.

`run_id=math_six_arms_train_v3_eot_20260908`. Replaces the private 20260902 src freeze for this v3 EOT recipe; does not overwrite `nothink-src-*-20260902`.

## Score (Exact-240)

AIME24+25 × seeds 42–45, EvalScope reviews, n=240.

| Model | Official /240 |
|---|---:|
| This endpoint | **38** |
| Same-run Base | 24 |

τ_s = θ_s − θ_0. θ_0 is `allenai/Olmo-3-1025-7B` rev `996971efdc504b81f0a6caf73a6c92f976254b9c`.

## Identity

| Field | Value |
|---|---|
| Arm | `O7B-NOTHINK-EP-X` |
| Updates / tokens | 175 / 11,441,234 |
| Recipe | LoRA r64/α128, TPU 65536, 2ep row-matched, seed 42, Qwen tail `151643` / O7B tail `100257`, B-rows both sides [100257] |
| Merged `model.safetensors` sha256 | `7374e4595494492ff9a077251e9bb502c53558e9cbea539a9bb5e361be0ef458` |
| Endpoint adapter sha256 | `f455b0193d3b8065e86b9cd31c5a61f234eaf795c1a60d0d3def1bee0da4aa89` |

Root of merged weights is this repo. Endpoint LoRA is in `adapter/`. `MERGE_RECEIPT.json` is the merge audit.

## Load

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