Which AI model scores highest on BU Bench?

Claude Opus 4.8 by Anthropic holds the best BU Bench result among tracked models, at 74% (released May 28 2026). Higher scores are better on this benchmark.

What are the top 5 models on BU Bench?

1. Claude Opus 4.8 (Anthropic) — 74%; 2. Gemini 3.6 Flash (Google) — 68%; 3. GPT-5.6 Sol (OpenAI) — 67%; 4. Claude Sonnet 4.6 (Anthropic) — 62%; 5. Gemini 3.5 Flash (Google) — 58%.

How many models have a published BU Bench score?

7 tracked models have a published BU Bench score. Scores are collected from published lab reports and benchmark sources, with recorded sources credited alongside the results. We do not re-run the evaluations.

Browser agent

BU Bench

Can the AI drive a real web browser to finish tasks — clicking, filling forms, and navigating sites the way a person would? Run by Browser Use on their BU Bench task set. Higher is better.

Rankings

Higher is better

Gemini 3.5 Flash-Lite

49%

GPT-5.4 mini

36%

BU Bench — frequently asked questions

: Can the AI drive a real web browser to finish tasks — clicking, filling forms, and navigating sites the way a person would? Run by Browser Use on their BU Bench task set. Higher is better.
: Claude Opus 4.8 by Anthropic holds the best BU Bench result among tracked models, at 74% (released May 28 2026). Higher scores are better on this benchmark.
: 1. Claude Opus 4.8 (Anthropic) — 74%; 2. Gemini 3.6 Flash (Google) — 68%; 3. GPT-5.6 Sol (OpenAI) — 67%; 4. Claude Sonnet 4.6 (Anthropic) — 62%; 5. Gemini 3.5 Flash (Google) — 58%.
: 7 tracked models have a published BU Bench score. Scores are collected from published lab reports and benchmark sources, with recorded sources credited alongside the results. We do not re-run the evaluations.