# AgentScope releases Piccolo open-weight decision models in three sizes

> Original title: AgentScope introduces Piccolo: open-weight decision models in 27B, 9B, and 4B sizes for agent and data workflows. Piccolo evaluates candi...

- Source: ModelScope
- Published: 2026-11-05T10:09:38.000Z
- Bad Influence: https://badinfluence.news/items/brfopqrin572wzrfdxlk2r1eo
- Original: https://x.com/ModelScope2022/status/2118284596521644522

## Summary

AgentScope introduces Piccolo, open-weight decision models in 27B, 9B, and 4B sizes that return structured decisions with probabilities for agent and data workflows. Piccolo-27B scores 92.21% accuracy on JevBench Public and 84.41% on HarnessJevBench for agent execution control. The models are released under Apache 2.0, with third-party licenses applying.

## Post

AgentScope introduces Piccolo: open-weight decision models in 27B, 9B, and 4B sizes for agent and data workflows. Piccolo evaluates candidate options in context and returns structured decisions with probabilities.
🤖 https://modelscope.ai/models/AgentScope/Piccolo-27B
🌐 Explore Piccolo: https://www.modelscope.ai/studios/AgentScope/PiccoloPlayground

🎯 Decisions that drive action: Control game characters, select and review tools, retain relevant context, filter data, assess output quality, and choose the next step—all through one decision interface.

📊 Benchmark results: Piccolo-27B achieves 92.21% accuracy on JevBench Public and scores 68.59 and 77.75 on text and multimodal Decision Index Public, respectively. On our purpose-built benchmarks, it achieves 84.41% on HarnessJevBench for agent execution control and 82.60% on DataJevBench for data workflows.

🔄 Recursive self-improvement: Model errors and per-example learning signals guide data selection, synthesis, and changes to training and inference. Research agents test each change and use the results to plan the next round, within human-defined goals and budgets.

📜 Apache 2.0; third-party licenses apply.

💻 Code: https://github.com/agentscope-ai/Piccolo

[Video](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Famplify_video_thumb%2F2118279030151794688%2Fimg%2F-NsjmPOu5mr3JpJK.jpg&mode=thumb&exp=1794096000&sig=6de29a969c8e6a41)

[Video](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Ftweet_video_thumb%2FHWWjmnQaYAAtAOu.jpg&mode=thumb&exp=1794096000&sig=d964dc8e20596e7a)

[Video](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Ftweet_video_thumb%2FHWWjne9aUAA3uw7.jpg&mode=thumb&exp=1794096000&sig=490a496253bde901)

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