# AWS and Ai2 ship small open specialist models built on Alibaba's Qwen base weights

Strands Decider 2B replaces Qwen3.5-2B's language head with a pointer head that scores options in one forward pass, and AstaBrief 8B fine-tunes Qwen3-8B to write cited research reports 3.5 times faster.

- Published: 2026-10-07T06:04:58.881Z
- Canonical: https://polylog.news/ai/2026-10-07/aws-and-ai2-ship-small-open-specialist-models-built-on-aliba
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Strands Agents (via Hacker News)](https://strandsagents.com/blog/introducing-strands-decider/), [Polylog editors](https://polylog.news)

Two US releases this week rest on the same Chinese base models. Strands Decider 2B, released by the AWS-backed Strands Agents project on October 1, starts from Alibaba's Qwen3.5-2B-Base. Techstrong.ai reports that the team removed the langu…

This story is for subscribers. Read it in full at https://polylog.news/ai/2026-10-07/aws-and-ai2-ship-small-open-specialist-models-built-on-aliba (subscription information: https://polylog.news/pricing).