Model reference · open weights
MiniCPM5-Midtrain is an open-weight language model from openbmb. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.
Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.
What it is
| Released by | openbmb |
|---|---|
| Type | Language models |
| Task | Text gen |
| Parameters (lead) | 2.5B |
| Context | 128k tokens |
| Runs with | transformers |
| Released | 2026-09-01 |
| Popularity | 1 downloads / month |
| Licence | Open weights |
About
English |
We are releasing MiniCPM5-2B, the second model in the MiniCPM5 series, following MiniCPM5-1B. It is a dense 2B Transformer that scales up the same training recipe, built for on-device, local deployment, and resource-constrained scenarios, reaching 2B-class open-source SOTA.
🏆 2B-class open-source SOTA: compared with strong open-source models of similar size, MiniCPM5-2B achieves SOTA performance within this comparison set. It remains competitive with 4B-class models overall, while showing its advantages over models of comparable size in coding, mathematics, long-context understanding, tool use, and agentic tasks.
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📂 Open High-Quality Data: Alongside the model, we are releasing the high-quality training datasets behind it as part of the UltraData family: UltraX, a high-quality web pre-training dataset; UltraData-Code, featuring L0–L3 tiered code data management to drive a significant leap in coding capabilities; UltraData-SFT-Agent-2609, comprising 500K agent training samples to enhance comprehensive on-device agent capabilities; and UltraData-RL-2609, with 80K+ high-quality RL training samples covering mathematics, code, general knowledge, and long-context reasoning.
Use this directory to choose the model format that matches your runtime:
MiniCPM5-2B
MiniCPM5-1B
MiniCPM5-2B has the following features:
LlamaForCausalLMMiniCPM5-2B is the second model in the MiniCPM5 series. It i
From the published model card. Full card on the HuggingFace links in the sidebar.
Using it via the API
Once AxForge deploys minicpm5-midtrain for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (minicpm5-midtrain below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/chat/completions \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"minicpm5-midtrain","messages":[{"role":"user","content":"Hello"}]}'
Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.