## Bar Chart: Pass@1 Performance Comparison of Policy Models
### Overview
This bar chart compares the "Pass@1" performance of different policy models, using three different approaches: "Pass@1" (green bars), "BoN with InternVL2.5-8B" (salmon/reddish bars), and "BoN with VisualPRM-8B (ours)" (blue bars). The chart displays overall performance on the y-axis against various policy models on the x-axis.
### Components/Axes
* **X-axis:** Policy Model. Categories include: MiniCPM-V2.6, QwenVL2.5-7B, InternVL2.5-8B, InternVL2.5-26B, InternVL2.5-38B, InternVL2.5-78B.
* **Y-axis:** Overall Performance (labeled as "Overall Performance"). Scale ranges from 25 to 55.
* **Legend:** Located in the top-left corner.
* Green: Pass@1
* Salmon/Reddish: BoN with InternVL2.5-8B
* Blue: BoN with VisualPRM-8B (ours)
### Detailed Analysis
The chart consists of six groups of three bars, each representing a different policy model. The height of each bar indicates the "Pass@1" performance.
* **MiniCPM-V2.6:**
* Pass@1: Approximately 29.5
* BoN with InternVL2.5-8B: Approximately 28.6
* BoN with VisualPRM-8B: Approximately 37.5
* **QwenVL2.5-7B:**
* Pass@1: Approximately 41.4
* BoN with InternVL2.5-8B: Approximately 41.6
* BoN with VisualPRM-8B: Approximately 45.1
* **InternVL2.5-8B:**
* Pass@1: Approximately 41.2
* BoN with InternVL2.5-8B: Approximately 32.8
* BoN with VisualPRM-8B: Approximately 33.2
* **InternVL2.5-26B:**
* Pass@1: Approximately 45.8
* BoN with InternVL2.5-8B: Approximately 36.9
* BoN with VisualPRM-8B: Approximately 39.1
* **InternVL2.5-38B:**
* Pass@1: Approximately 44.4
* BoN with InternVL2.5-8B: Approximately 44.9
* BoN with VisualPRM-8B: Approximately 50.7
* **InternVL2.5-78B:**
* Pass@1: Approximately 46.0
* BoN with InternVL2.5-8B: Approximately 46.4
* BoN with VisualPRM-8B: Approximately 51.9
**Trends:**
* **Pass@1:** Generally increases with larger policy models, peaking at 46.0 for InternVL2.5-78B.
* **BoN with InternVL2.5-8B:** Shows a more erratic pattern, with a dip at InternVL2.5-8B and a peak at InternVL2.5-78B.
* **BoN with VisualPRM-8B:** Demonstrates a consistent upward trend, achieving the highest performance values across most models, especially at InternVL2.5-38B and InternVL2.5-78B.
### Key Observations
* "BoN with VisualPRM-8B (ours)" consistently outperforms the other two approaches, particularly with larger policy models.
* The performance of "BoN with InternVL2.5-8B" is relatively stable, but generally lower than "Pass@1" and "BoN with VisualPRM-8B".
* The largest performance gains are observed when using "BoN with VisualPRM-8B" in conjunction with the InternVL2.5-78B policy model.
* InternVL2.5-8B shows a significant drop in performance for the "BoN with InternVL2.5-8B" approach.
### Interpretation
The data suggests that the "BoN with VisualPRM-8B" approach significantly enhances the performance of policy models, especially as the model size increases. This indicates that incorporating visual information through the VisualPRM-8B model is beneficial for achieving higher "Pass@1" scores. The consistent upward trend of "BoN with VisualPRM-8B" suggests a strong positive correlation between model capacity and performance when combined with this approach. The outlier at InternVL2.5-8B for "BoN with InternVL2.5-8B" could indicate a compatibility issue or a specific characteristic of that model that hinders the effectiveness of the BoN approach. The chart demonstrates the effectiveness of the proposed "BoN with VisualPRM-8B" method, positioning it as a superior approach compared to the baseline "Pass@1" and "BoN with InternVL2.5-8B" methods.
