## Line Graph: τ²-bench Score (%) vs ROAD Iteration Round
### Overview
The graph compares the τ²-bench scores (in percentage) of two models, **o4-mini** (orange circles) and **Qwen3-4B-Thinking** (teal squares), across six ROAD iteration rounds (Base to 6). The y-axis ranges from 50% to 80%, and the x-axis spans from "Base" to "6".
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### Components/Axes
- **X-axis**: Labeled "ROAD Iteration Round" with markers: Base, 1, 2, 3, 4, 5, 6.
- **Y-axis**: Labeled "τ²-bench Score (%)" with increments of 10% (50% to 80%).
- **Legend**: Located at the bottom-right corner, mapping:
- **Orange circles**: o4-mini
- **Teal squares**: Qwen3-4B-Thinking
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### Detailed Analysis
#### o4-mini (Orange Circles)
- **Base**: ~68%
- **Round 1**: ~75%
- **Round 2**: ~78% (peak)
- **Round 3**: ~73%
- **Rounds 4–6**: Not plotted (data ends at Round 3).
#### Qwen3-4B-Thinking (Teal Squares)
- **Base**: ~54%
- **Round 1**: ~58%
- **Round 2**: ~65%
- **Round 3**: ~65%
- **Round 4**: ~63%
- **Round 5**: ~58%
- **Round 6**: ~65%
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### Key Observations
1. **o4-mini** shows a sharp increase from Base (68%) to Round 2 (78%), followed by a decline to 73% in Round 3. No data is provided for Rounds 4–6.
2. **Qwen3-4B-Thinking** exhibits a gradual upward trend from Base (54%) to Round 2 (65%), with a dip to 58% in Round 5 before recovering to 65% in Round 6.
3. **Color Consistency**: Legend colors match data points exactly (orange for o4-mini, teal for Qwen3-4B-Thinking).
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### Interpretation
- **o4-mini's Decline**: The drop from Round 2 to 3 suggests potential instability or overfitting in later iterations, though the lack of data beyond Round 3 limits conclusions.
- **Qwen3-4B-Thinking's Stability**: Despite a mid-round dip, the model maintains a relatively consistent performance, indicating robustness across iterations.
- **Performance Gap**: o4-mini consistently outperforms Qwen3-4B-Thinking in early rounds, but the latter closes the gap by Round 6 (65% vs. o4-mini's 73% in Round 3, though Round 6 data for o4-mini is missing).
The graph highlights trade-offs between early performance (o4-mini) and sustained stability (Qwen3-4B-Thinking), with missing data for o4-mini in later rounds raising questions about its long-term reliability.
