Ant Group Unveils Marathoner, an Agent That Codes for 10+ Hours Straight

Ant Group, with Peking University and University of Macau, released Marathoner, a Qwen3.5-9B-based agent that can code continuously for 10+ hours with thousands of tool calls, reaching 77.5% on SWE-bench.

2026-09-30 ~ 2026-10-01 · 2 related posts

• Ant Group's Marathoner Trains Agents to Work 10+ Hours With 1000+ Tool Calls — antgroup · 2026-09-30
• Marathoner: a 9B model that codes for 10+ hours, lifting SWE-bench Verified to 77.5% — mark_k · 2026-10-01