Researchers release MEMENTO long-context agent for Qwen3-8B

Researchers introduce MEMENTO, a long-context agent built on Qwen3-8B that manages fixed-size context windows through compaction. By combining supervised fine-tuning on synthetic trajectories with reinforcement learning, MEMENTO significantly improves question-answering accuracy on extensive book-level benchmarks while operating at a fraction of the cost of larger models. Open article →