Language model
MiniCPM5-1B
openbmb
- Released
- May 19, 2026
- Data date
- September 26, 2026
MiniCPM5-1B is the first compact checkpoint in OpenBMB’s MiniCPM5 family. It has 1.08 billion parameters and a 131,072-token context. The same checkpoint can switch between Think and No Think.
Tool calls use the documented XML format. OpenBMB describes an SGLang parser that converts it into OpenAI-compatible tool_calls. MiniCPM5-2B is a separate, larger family member, while MiniCPM5-1B is the one of the two that can switch between Think and No Think. The chat template and parser are therefore part of the 1B model’s technical interface.
Popularity
53.1 / 100
Sources and data date
| Type | Evidence and data date |
|---|---|
| Additional source | models.dev catalog (retrieved September 26, 2026) |
| Additional source | Hugging Face · MiniCPM5-1B model card · Editorial description reviewed October 2, 2026 |
| Additional source | OpenRouter: Popularity index (derived), CC BY 4.0 |
| Additional source | Vercel AI Gateway: Popularity index (derived), CC BY 4.0 |
| Additional source | Creative Commons Attribution 4.0 |