QEncodeBench - Subset Sum: leaderboard
Metric: Semantic pass@1 (%; L3 gate, subset sum (selected values sum to the target), 70 instances of the core set; the model writes a Qiskit build_oracle function in one shot and the verifier decides full solution-set equivalence up to a global phase by exhaustive simulation, with ancillas restored and a measurement-free unitary circuit; pass@1, one attempt per instance (five samples at temperature 0.7 for the non-reasoning DeepSeek-V4-Flash row)). Source: arxiv.org. Saturation forecast: Estimated already saturated. 13 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-OSS-120B (High) | 90 |
| 2 | GPT-OSS-20B (High) | 85.7 |
| 3 | DeepSeek V4 Flash (Thinking) | 62.9 |
| 4 | Claude Opus 4.8 (Claude Code) | 58.6 |
| 5 | Claude Haiku 4.5 (Claude Code) | 57.1 |
| 6 | DeepSeek V4 Flash (Non-reasoning) | 9.7 |
| 7 | DeepSeek R1 0528 Qwen3 8B | 1.4 |
| 8 | Qwen 2.5 Coder 7B Instruct | 0 |
Interactive version: theaggregate.ai/benchmark?slug=qencodebench-subset-sum · How It Works · Data refreshed daily, snapshot 2026-09-26.