## Chart: Validation Score vs. Training Step for GRPO and MEL
### Overview
The image is a line chart comparing the validation scores of two models, GRPO and MEL, over training steps. The chart shows how the validation score changes as the models are trained.
### Components/Axes
* **Title:** Benchmark: OlympiadBench
* **X-axis:** Training Step, ranging from 0 to 140 in increments of 20.
* **Y-axis:** Validation Score, ranging from 0.450 to 0.625.
* **Legend:** Located in the bottom-right corner.
* GRPO (Blue)
* MEL (Pink)
### Detailed Analysis
* **GRPO (Blue):**
* Starts at approximately 0.45.
* Increases to approximately 0.48 at step 20.
* Decreases to approximately 0.47 at step 30.
* Increases to approximately 0.51 at step 40.
* Increases to approximately 0.515 at step 50.
* Increases to approximately 0.57 at step 60.
* Decreases to approximately 0.56 at step 70.
* Decreases to approximately 0.555 at step 80.
* Increases to approximately 0.56 at step 90.
* Increases to approximately 0.59 at step 100.
* Decreases to approximately 0.58 at step 110.
* Decreases to approximately 0.575 at step 120.
* Increases to approximately 0.60 at step 130.
* Decreases to approximately 0.58 at step 140.
* **MEL (Pink):**
* Starts at approximately 0.45.
* Increases to approximately 0.50 at step 20.
* Increases to approximately 0.54 at step 30.
* Increases to approximately 0.58 at step 40.
* Increases to approximately 0.58 at step 50.
* Increases to approximately 0.58 at step 60.
* Increases to approximately 0.58 at step 70.
* Increases to approximately 0.59 at step 80.
* Increases to approximately 0.595 at step 90.
* Increases to approximately 0.60 at step 100.
* Increases to approximately 0.60 at step 110.
* Increases to approximately 0.60 at step 120.
* Increases to approximately 0.60 at step 130.
* Increases to approximately 0.62 at step 140.
### Key Observations
* Both models start with a similar validation score.
* MEL generally outperforms GRPO after the initial training steps.
* MEL shows a more consistent upward trend, while GRPO fluctuates more.
* MEL reaches a higher validation score at the end of the training period.
### Interpretation
The chart suggests that the MEL model performs better than the GRPO model on the OlympiadBench benchmark, as indicated by its higher validation scores over the training period. The consistent upward trend of MEL implies a more stable learning process compared to GRPO, which experiences more fluctuations. The data indicates that MEL is a more effective model for this particular benchmark.
