Judge-Free Test-Time Scaling Tops WebArena Infinity at 74.6%: Salesforce Introduces CLIFT, Alongside MMSearch-OPD and SCOPED-8B Beating 32B VLMs
Three new frameworks advance web and multimodal agent post-training: Salesforce AI Research's CLIFT (arXiv:2610.06829) certifies URL-conditional self-verification questions for dense RL rewards and judge-free Conformal Trajectory Selection (CTS), propelling Gemma-4 31B to a 74.6% SOTA on WebArena Infinity (beating Gemini 3 Flash at 70.1%) and lifting GPT-5.5 to 53.7% on VisualWebArena. Meanwhile, MMSearch-OPD (arXiv:2610.22240) boosts 9B multimodal deep search by +15.3 points to 60.2%, and Northeastern University's SCOPED-8B (arXiv:2610.22217) uses skill-decoupled on-policy expert distillation to reach 73.13% across 8 benchmarks—surpassing Qwen3-VL-32B (72.01%) and Claude Opus 4.6 (72.86%).
Key Takeaways
- Salesforce's CLIFT conformal self-verification propels Gemma-4 31B to 74.6% on WebArena Infinity (+12.8 pts over base, beating Gemini 3 Flash at 70.1%) with judge-free test-time trajectory selection
- Transferring the open-trained CLIFT question bank to GPT-5.5 sets a 53.7% SOTA on VisualWebArena, while MMSearch-OPD boosts 9B multimodal deep search accuracy by +15.3 points to 60.2%
- Northeastern University's SCOPED-8B reaches 73.13% average accuracy across 8 VLM benchmarks via skill-decoupled on-policy expert distillation, beating Qwen3-VL-32B (72.01%) and Claude-Opus-4.6 (72.86%)

