Gemini/DeepMind Competition - BrowserUse Track

Browser Evolution

Darwinian natural selection breeds AI browser agents that survive hostile websites. Can evolution teach an AI to avoid traps?

Head-to-Head: Naive vs Evolved

Naive Prompt

47.5%

FAIL

30 actions | Got trapped

Evolved Genome

94.5%

PASS

16 actions | ORDER_CONFIRMED

Metric	Naive	Evolved	Delta
Task Completion	50%	100%	+50%
Efficiency	50%	80%	+30%
Resilience (LLM Judge)	60%	100%	+40%
Strategy (LLM Judge)	30%	90%	+60%
Composite Fitness	47.5%	94.5%	+47%

The Gauntlet is a hostile e-commerce site with 4 difficulty levels. At Level 3 (Nightmare):

💥 4 trap buttons styled identically to real buttons — all lead to dead-end error pages
🔎 Real buttons are tiny grey links — barely visible, easily missed
📐 Misleading form labels — "Phone Number" field is actually for email
📦 Fake success page — shows "PAYMENT_PENDING" instead of confirmation
💬 Popup overlays — newsletter modals with tempting "GET MY DISCOUNT" button

Try Nightmare Mode Try Easy Mode

Create random 6-gene browser agent genomes. Each gene controls a different skill.

Run agents against The Gauntlet. Gemini 3 Flash judges their screenshots.

Kill the weak. Survivors breed via crossover + mutation. LLM evolves genes.

Navigation

Goal decomposition with alternative path scanning

Element Selection

Semantic understanding + trap awareness: big buttons = traps

Error Recovery

Adaptive strategy switching, trap page detection

Distraction Handling

Immediate popup dismissal via dismiss links

Form Interaction

Field name attributes over misleading labels

Verification

Defensive checking, PAYMENT_PENDING detection

Agent Brain	Gemini 2.5 Flash (via browser-use)
LLM Judges	Gemini 3 Flash Preview (multimodal, screenshot-grounded)
Evolution Engine	Custom Darwinian system (crossover + mutation + LLM gene evolution)
Observability	W&B Weave (full trace lineage)
Gauntlet	Flask hostile website (4 mutation levels)
Deployment	Vercel (gauntlet) + Railway (agent)

Launch real browser agents against the Nightmare Gauntlet (Level 3). Watch the naive agent get trapped while the evolved agent completes checkout.

Naive Agent

Ready to launch

Evolved Agent

Ready to launch