SWE-Lancer — leaderboard
Real freelance software engineering tasks from Upwork valued at $1M total - from $50 bug fixes to $32K feature implementations. Graded via end-to-end tests. Diamond subset is triple-verified by senior engineers.
Metric: Score (%). Source: www.vals.ai. Status: years away from saturation. 4 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.1 Codex | 66.3 |
| 2 | GPT-4.5 | 37.3 |
| 3 | GPT-4o | 32.6 |
| 4 | O3 Mini | 18 |
Interactive version: theaggregate.ai/benchmark?slug=swe-lancer · How the rankings work · Data refreshed daily, snapshot 2026-07-22.