# ViBench 2.0 benchmark tests whether AI models can build full software products

> Original title: ViBench 2.0: A Benchmark for Long-Horizon Software Building

- Source: Replit Blog
- Published: 2026-10-28T18:50:00.000Z
- Bad Influence: https://badinfluence.news/items/jwjszoamlqnhe6rlt7ghletfb
- Original: https://replit.com/blog/vibench-2-long-horizon-software-benchmark

## Summary

Replit releases ViBench 2.0, a benchmark in which models build 17 products from an empty project, adding 241 feature requests and passing 544 test plans. The best models, GPT-6.1 Sol, GPT-6 Astra and Opus 5.5, pass all test plans in only 49 to 65% of builds. Fireworks runs the official results, with GPT-6.1 Sol leading at 65% pass@1 for about $12 per build.