Structured synthetic trajectory generation from Gemini 3 Pro enables a 9B open-weight model to reach 41.5% on WebArena, outperforming Claude 3.5 Sonnet and GPT-4o while generalizing to unseen enterprise environments.
After fine-tuning on A3- SYNTHdata, it surpasses models 7–45 × larger (Llama 3.1 70B, GPT-4o, Llama 3.1 405B) on WebArena
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Structured Distillation of Web Agent Capabilities Enables Generalization
Structured synthetic trajectory generation from Gemini 3 Pro enables a 9B open-weight model to reach 41.5% on WebArena, outperforming Claude 3.5 Sonnet and GPT-4o while generalizing to unseen enterprise environments.