OpenBMB

8 models tracked · latest release 2026-09-07

Product line release timeline

Generational evolution by product line · dot = one model release · dashed line connects successive generations · click a dot to open the model page

Models

4

Time span

238days

Avg. gap

79days

Published models

8 models

Models published by OpenBMB, grouped into 2 series.

MiniCPM

Reasoning models1Foundation models2

First: 2024-04-10
Latest: 2026-09-07
Span: 881 days
Models: 3

Reasoning models

MiniCPM5-2BOpen source

2.5B·2026-09-07

Foundation models

MiniCPM-MoE-8x2BOpen source

13.6B·2024-04-10

MiniCPM-2B-128kOpen source

2.4B·2024-04-10

V 4.6

Multimodal models1

First: 2026-05-11
Latest: 2026-05-11
Span: 1 days
Models: 1

MiniCPM-V 4.6Open source

1.3B·2026-05-11

No series

4 models

Reasoning models

MiniCPM5-1BOpen source

1.1B·2026-05-01

AgentCPM-ExploreOpen source

Multimodal models

MiniCPM-V-2Open source

2.8B·2024-04-10

Foundation models

MiniCPM-1B-SFTOpen source

1.2B·2024-04-10

About this organization

OpenBMB, the full name of Open Lab for Big Model Base, is jointly supported and initiated by the Natural Language Processing Laboratory of Tsinghua University and the Language Big Model Acceleration Technology Innovation Center of Intelligent Source Research Institute.

Create a large-scale pre-training language model library and related tools to accelerate the training, fine-tuning and inference of large models above tens of billions, and lower the threshold for using large models.

Official website: https://www.openbmb.org/