MiniCPM 4.7 Ultra — CIRU HALO AGENT

A local vision and coding agent built to make the most of AMD Strix Halo.

MiniCPM 4.7 Ultra brings OpenBMB’s 35B-parameter, 3B-active MoE vision-language model to a tuned Q8 serving stack for the Ryzen AI Max+ 395. Read screenshots and documents, write code, call tools, and run several agents together on one machine. The release combines compact expert weights, native vision, a 262,144-token context limit, and adaptive DSpark speculative decoding.

This is a model plus a custom Ciru vLLM runtime. Use the included runtime: these packed Q8 weights are not GGUF and do not load through stock vLLM, llama.cpp, Ollama, or a generic Transformers pipeline.

Download weights and runtime · GitHub · Installation · Benchmark details

Why this build

• Fast with long prompts: about 40.5 generated tokens/s at 64K context, with 1,969 prompt tokens/s on the measured single-request workload.
• Room for parallel agents: 122.8 aggregate generated tokens/s across eight concurrent vision/tool requests in the packaged-runtime check.
• A completed real task: eight agents built and repaired a 3D AMD scene in 2 minutes 22 seconds, producing 12,992 tokens and completing all eight roles without manual design coaching.
• One adaptive profile: DSpark uses three draft tokens for a single active request and two for concurrent batches. No separate “fast single-user” and “fast multi-user” model copies.
• Vision and tool use together: image input, native tool calls, optional thinking, prefix reuse, and vision-feature caching are integrated into the same server.
• Targeted precision: routed expert weights use Ciru’s packed 8-bit format. The other target-model tensors, including the vision components, retain their original weights.

Measured on one Strix Halo

AMD Ryzen AI Max+ 395 / Radeon 8060S (gfx1151), 128 GB unified memory, Linux. PP means prompt processing; TG means token generation. All times below start after the server is ready.

¹ Cached PP counts only newly computed tokens: 622 in this long-context test. It does not count reused prompt tokens as newly processed work.

² Aggregate TG is output tokens divided by the union of active decode intervals across requests. It is not single-user generation speed. Pooled per-request TG was 21.49 for the eight-request check and 19.82 for the complete task. Across the entire 3D task, including prompt processing, tools, and orchestration, throughput was 91.61 output tokens/s.

The long-context speed test used thinking off and temperature 0.6. The vision/tool checks and 3D task used thinking on and temperature 1.0. These are different workloads, not an apples-to-apples speedup claim. Full settings, token counts, acceptance, fidelity, and limitations are in Benchmark details.

Install and run

The download includes the Q8 weights, BF16 DSpark drafter, native kernels, engine overlay, and pinned Python/ROCm foundation. No GLM model download is required; a historical directory name in the shared foundation is only a runtime compatibility path.

Start with a Linux Strix Halo machine with 128 GB unified memory, working AMD GPU access, and approximately 75 GB free disk space for the download and installed runtime. The measured configuration reserves 24 GiB for KV cache and admits up to eight requests. The 262,144-token limit is per sequence; eight simultaneous full-length contexts are not promised by that memory budget.

git clone https://github.com/ciru-ai/minicpm-ciru-halo-agent.git
cd minicpm-ciru-halo-agent
python3 -m venv .download-env
. .download-env/bin/activate
python -m pip install 'huggingface_hub>=1.0,<2'
python scripts/download.py --destination "$HOME/models/minicpm-ultra"
bash scripts/install.sh "$HOME/models/minicpm-ultra" "$HOME/.local/opt/minicpm-ultra"
bash "$HOME/.local/opt/minicpm-ultra/serve.sh" --host 127.0.0.1 --port 8095

Install the OS packages listed in the installation guide first. The installer checks release checksums, installs the shared foundation only if it is absent, and refuses to overwrite an existing model-runtime directory. Foundation installation under /opt/ciru needs administrator access; inference runs as your normal user.

Validation scope: inference, vision, tools, concurrency, and numerical checks were completed on NixOS. The Ubuntu 24.04 instructions document the required userspace dependencies; see the installation guide for the exact portability checks performed. A successful CPU import is not a GPU benchmark on another distribution.

Connect your agent

Use the OpenAI-compatible API at http://127.0.0.1:8095/v1, with model ID minicpm-q8. Your agent supplies its tools and executes the returned tool calls. The model download does not include a desktop automation application.

curl http://127.0.0.1:8095/v1/chat/completions \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "minicpm-q8",
    "messages": [{"role": "user", "content": "Write a Python function that merges overlapping intervals, and explain its complexity."}],
    "temperature": 0.6,
    "top_p": 0.95,
    "top_k": 20,
    "chat_template_kwargs": {"enable_thinking": false},
    "stream": true
  }'

Set enable_thinking to true for reasoning. Allow sufficient remaining context for long agent work; a small client-side completion limit can cut reasoning or tool calls short. API examples cover image inputs and tool calls.

Precision and verification

Fresh matched-prefix comparisons against the original BF16 model measured 99.23% top-token agreement on live single-request continuations and 99.21% on live eight-request continuations. A separate, broader frozen-prefill panel measured 96.67%. These panels contain different histories and positions: the figures measure numerical agreement, not task accuracy, and Q8 is not lossless. Ties are excluded consistently from those strict rates. Counts and methodology.

The installed runtime also reproduced 4,929/4,929 frozen top-token sets from the validated Q8 build, and completed ten serving checks with exact tokenizer counts and valid tool-call structure. That exact result establishes packaging parity with Q8, not BF16 equivalence.

What is included

Credits and license

Built on OpenBMB MiniCPM-V-4.7-35B-A3B and its DSpark drafter. Runtime work builds on vLLM, AMD ROCm, AITER, and Triton. The BF16 prefill work also credits asf0 and halo-box/strix-llama.cpp PR #172, with upstream attribution preserved in the source.

The model and Ciru-authored release code are Apache-2.0. Bundled third-party components retain their own licenses; see license notices and the included license files. This is an independent Ciru optimization release, not an official AMD or OpenBMB product.

Patch notes

v1.0.1 — October 18, 2026: Fixed ROCr idle CPU spin on gfx1151 by enabling HIP blocking waits before GPU initialization. In a local full-context text-serving check, idle CPU fell from ~102% to 2.8–3.8%. Weights and serving defaults are unchanged. Refresh the runtime download and install into a new directory using your existing weights.

Thanks Cinderblade for reporting the issue.