| Rank | Model | Harness | Provider | Score |
|---|---|---|---|---|
| 1 | GPT-6 Astra | Pi | OpenAI | 56.9% |
| 2 | GPT-6 Astra | Codex | OpenAI | 55.2% |
| 3 | Claude Opus 5 | Claude Code | Anthropic | 53.0% |
| 4 | Grok 4.6 | Pi | SpaceXAI | 51.9% |
| 5 | Claude Opus 5 | Pi | Anthropic | 51.4% |
| 6 | Grok 4.6 | Grok Build | SpaceXAI | 51.0% |
| 7 | Claude Opus 4.8 | Pi | Anthropic | 45.6% |
| 8 | Gemini 3.5 Flash | Pi | 42.6% | |
| 9 | Claude Opus 4.8 | Claude Code | Anthropic | 42.0% |
| 10 | Claude Opus 4.7 | Claude Code | Anthropic | 39.0% |
| 11 | DeepSeek V4.1 Flash | Pi | DeepSeek | 39.0% |
| 12 | Grok 4.5 | Pi | SpaceXAI | 38.9% |
| 13 | Claude Sonnet 5 | Claude Code | Anthropic | 37.3% |
| 14 | Claude Sonnet 5 | Pi | Anthropic | 33.9% |
| 15 | GPT-5.6 Sol | Pi | OpenAI | 33.8% |
| 16 | GPT-5.5 | Pi | OpenAI | 33.6% |
| 17 | GPT-5.6 Sol | Codex | OpenAI | 33.3% |
| 18 | GPT-5.5 | Codex | OpenAI | 31.5% |
| 19 | GPT-5.6 Terra | Pi | OpenAI | 31.0% |
| 20 | GPT-5.6 Terra | Codex | OpenAI | 29.7% |
| 21 | GPT-5.6 Luna | Pi | OpenAI | 19.4% |
| 22 | GPT-5.6 Luna | Codex | OpenAI | 18.2% |
Methodology and provenance
Scores use a 0–100 percentage scale. See the benchmark repository, hosted paper PDF, and original publication for task construction, grading, aggregation, and uncertainty details.