Reorganize README: Unsloth Studio + Gemma 4 up top, NeMo Gym to GRPO

Main Notebooks (manually-edited top section):
  * Unsloth Studio added as the first row
  * Gemma 4 (E2B) Vision added as the second row

GRPO & Reinforcement Learning section:
  * NeMo-Gym-Sudoku.ipynb and NeMo-Gym-Multi-Environment.ipynb were
    falling into "Other" because the classifier never tagged them with
    model_type='GRPO'. Added a filename-based force rule so notebooks
    matching nemo-gym / nemo_gym land in the GRPO section regardless of
    what the classifier infers.

Author: danielhanchen

README.md

@@ -18,6 +18,8 @@ Below are Colab notebooks, organized by model. You can also view all [notebooks
 ### Main Notebooks
 | Model                        | Type           | Notebook Link                                                                                                                                                                                         |
 |-----------------------------|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **Unsloth Studio**          | Chat UI        | [![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Unsloth_Studio.ipynb)                         |
+| **Gemma 4 (E2B)**           | Vision         | [![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Gemma4_%28E2B%29-Vision.ipynb)                |
 | **Qwen3.5 (4B)**            | Vision         | [![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Qwen3_5_%284B%29_Vision.ipynb)                 |
 | **Qwen3.5 (2B)**            | Vision         | [![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Qwen3_5_%282B%29_Vision.ipynb)                 |
 | **gpt-oss (20B)**           | Fine-tuning    | [![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/gpt-oss-%2820B%29-Fine-tuning.ipynb)           |
@@ -44,6 +46,8 @@ Below are Colab notebooks, organized by model. You can also view all [notebooks
 | Model | Type | Notebook Link |
 | --- | --- | --- |
 | **Llama3.1** **(8B)** | GRPO | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Llama3.1_(8B)-GRPO.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
+| **NeMo Gym Sudoku**  |  | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/NeMo-Gym-Sudoku.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
+| **NeMo Gym Multi Environment**  |  | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/NeMo-Gym-Multi-Environment.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
 | **gpt oss** **(20B)** | GRPO | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/gpt_oss_(20B)_GRPO_BF16.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
 | **gpt oss** **(20B)** | GRPO | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/gpt-oss-(20B)-GRPO.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
 | **Openenv wordle**  | GRPO | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Openenv_wordle_grpo.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
@@ -302,8 +306,6 @@ Below are Colab notebooks, organized by model. You can also view all [notebooks
 ### Other Notebooks
 | Model | Type | Notebook Link |
 | --- | --- | --- |
-| **NeMo Gym Sudoku**  |  | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/NeMo-Gym-Sudoku.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
-| **NeMo Gym Multi Environment**  |  | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/NeMo-Gym-Multi-Environment.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
 | **CodeForces cot Finetune<br>for Reasoning on CodeForces**  | Reasoning | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/CodeForces-cot-Finetune_for_Reasoning_on_CodeForces.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
 | **Synthetic Data Hackathon**  | Synthetic Data | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/Synthetic_Data_Hackathon.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |
 | **LFM2.5** **(1.2B)** | Conversational | <a href="https://colab.research.google.com/github/unslothai/notebooks/blob/main/nb/LFM2.5_(1.2B)-Conversational.ipynb" target="_blank" rel="noopener noreferrer"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> |

scripts/model_created_at.csv

@@ -94,6 +94,7 @@ gemma_output/model.pte,,0,0,,2026-04-08T08:58:06Z,not_found
 google/functiongemma-270m-it,2025-10-08T17:33:31Z,31603,960,,2026-04-08T08:58:28Z,ok
 google/gemma-2-2b,2024-07-16T08:07:29Z,475407,636,,2026-04-08T08:58:28Z,ok
 google/gemma-2-9b,2024-06-24T08:10:30Z,68791,695,,2026-04-08T08:58:28Z,ok
+google/gemma-3-12b,,0,0,,2026-04-08T10:17:42Z,not_found
 google/gemma-3-12b-it,2025-03-01T19:11:34Z,2603868,703,google/gemma-3-12b-pt,2026-04-08T08:58:28Z,ok
 google/gemma-3-12b-pt,2025-03-01T19:11:17Z,21277,89,google/gemma-3-12b,2026-04-08T09:26:16Z,ok
 google/gemma-3-1b-it,2025-03-10T12:09:00Z,1063807,906,google/gemma-3-1b-pt,2026-04-08T08:58:28Z,ok
@@ -169,6 +170,7 @@ mistralai/Mistral-7B-Instruct-v0.2,2023-12-11T13:18:44Z,2437425,3108,,2026-04-08
 mistralai/Mistral-7B-Instruct-v0.3,2024-05-22T09:57:04Z,2313251,2500,mistralai/Mistral-7B-v0.3,2026-04-08T08:58:28Z,ok
 mistralai/Mistral-7B-v0.1,2023-09-20T13:03:50Z,656082,4064,,2026-04-08T08:58:28Z,ok
 mistralai/Mistral-7B-v0.3,2024-05-22T09:56:38Z,299325,572,,2026-04-08T08:58:28Z,ok
+mistralai/Mistral-Small-3.1-24B-Base-2503,2025-03-16T23:31:11Z,9111,271,,2026-04-08T10:17:42Z,ok
 mistralai/Mistral-Small-3.2-24B-Instruct-2506,2025-06-19T17:41:13Z,767976,577,mistralai/Mistral-Small-3.1-24B-Base-2503,2026-04-08T09:26:16Z,ok
 mistralai/Mistral-Small-Instruct-2409,2024-09-17T13:05:37Z,12392,394,,2026-04-08T08:58:28Z,ok
 mistralai/Pixtral-12B-2409,2024-09-11T18:11:16Z,16958,683,mistralai/Pixtral-12B-Base-2409,2026-04-08T08:58:28Z,ok

update_all_notebooks.py

@@ -3594,7 +3594,14 @@ def update_readme(
 
         # Primary section (architecture-based)
         section_name = "Other"
-        if model_type == 'GRPO':
+        # Force-route notebooks whose filename signals a GRPO / RL environment
+        # even though the classifier did not tag them with model_type='GRPO'.
+        # Examples: NeMo-Gym-Sudoku.ipynb, NeMo-Gym-Multi-Environment.ipynb.
+        basename_lower = os.path.basename(path).lower()
+        is_forced_grpo = any(
+            kw in basename_lower for kw in ["nemo-gym", "nemo_gym"]
+        )
+        if model_type == 'GRPO' or is_forced_grpo:
             section_name = 'GRPO & Reinforcement Learning'
         elif architecture and architecture in list_models:
             section_name = architecture