Artificial Intelligence research

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  • Preprint
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A preprint finds RL adds little once supervised fine-tuning is done well

Original title: Measuring the Marginal Value of Verifier-Based RL Beyond Supervised Fine-Tuning

A preprint reports that reinforcement learning barely improves on strong supervised fine-tuning in a controlled GPU-diagnosis benchmark.

Amit Sagtani et al. · Added

  • Preprint
  • Not peer reviewed
  • From Meituan

Researchers report MCP agents still stumble on infeasible-goal tasks

Original title: MCPHallu: Benchmarking Reasoning, Execution, and Memory Hallucinations in MCP Agents

A new benchmark finds frontier MCP agents often fail to recognise unreachable goals and vary sharply across failure types.

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