# APEX-SWE — AI model rankings

expert-level software-engineering tasks (AI Productivity Index)

2 tracked models have a published APEX-SWE score. Higher is better. Scores come from published lab reports and benchmark sources; recorded sources appear beside the scores.

## Ranking

| Rank | Model | Developer | Score | Source | Released |
| --- | --- | --- | --- | --- | --- |
| 1 | Grok 4.6 | SpaceXAI | 56.4% | Lab | Aug 12 2026 |
| 2 | Grok 4.5 | SpaceXAI | 53.6% | Lab | Jul 8 2026 |


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Canonical page: https://aireleasetracker.com/benchmark/apex-swe
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.