Name: Sage-A1.5
Author: Shanghai AI Lab

Version History

A1.5minorOctober 22, 2026

Sage-A1.5 is a 35B MoE agentic model from Shanghai AI Laboratory that builds on A1 with parallel subagent orchestration and an opt-in in-model Verification Mode. The lab claims large gains over A1 on engineering and agentic benchmarks, including +17.6 on SWE-bench Pro and +21.3 on MLE-Lite.

Coverage

model release

Shanghai AI Lab releases Sage-A1.5, a 35B MoE agentic model with 256K native context

Shanghai AI Laboratory has released Sage-A1.5, a 35B-parameter Mixture-of-Experts agentic model with a native 256K context window, extendable to 512K via YaRN. The lab claims it matches or beats larger frontier models on several agentic and scientific benchmarks, including 95.1 on GAIA. Pricing is not yet disclosed.

October 22, 2026 · 1:51 AM3 min read

Sage-A1.5 Shanghai AI Laboratory InternScience