MIRA-SFT-35B-A3B (MIRA-SFT)

MIRA is a multimodal deep research agent from the paper MIRA: A Multimodal Illustrated Deep Research Agent for Controllable Reports. This checkpoint is the agent model: it searches the web, opens pages and images, runs Python, and writes either a short answer or an illustrated report whose length, image count and source count follow the request. It is meant to run inside the MIRA agent runtime and harness (https://github.com/MIRA-MMDeepResearch/MIRA), which provide the tools, the report contract and the submission gate.

Base model Qwen/Qwen3.6-35B-A3B
Architecture Qwen3_5MoeForConditionalGeneration: 35B total / 3B active parameters, 256 experts (8 active), 40 layers, vision encoder
Context 262,144 tokens
Training Full-parameter SFT in three stages on MIRA-Data (harness reports, multimodal search trajectories, failure-case repair), learning rate 5e-6, global batch 64
Precision bfloat16, 70.2 GB in 2 safetensors shards

Use

Requires transformers>=5.2. Serve with vLLM and call it through the MIRA runtime:

vllm serve MIRA-MMDeepResearch/MIRA-SFT-35B-A3B --served-model-name MIRA \
  --max-model-len 262144 --enable-auto-tool-choice --tool-call-parser qwen3_coder \
  --allowed-local-media-path / --port 8000
python -m mira.harness.run --endpoint http://localhost:8000 --prompt-profile student \
  --mode detail --question "..." --output runs/example

Sampling. temperature 1.0, top-p 0.95, top-k 20, presence penalty 1.5 (the values in generation_config.json, except presence penalty, which the runtime sets).

Chat template. The bundled chat_template.jinja is the base model's template. Tools are described in the system turn and called with the XML format <tool_call><function=NAME><parameter=KEY>VALUE</parameter></function></tool_call>. Reasoning is on: keep enable_thinking true and pass preserve_thinking: true through chat_template_kwargs so earlier reasoning stays in context across tool calls. The system prompt the model was trained with is SYS_QWEN36_SFT_S2_MM in mira/agent/prompts/prompt.py; other system prompts reduce accuracy.

Evaluation

Accuracy (%) under the MIRA harness with the same judge for all agents. MMDeepResearch is the official report score.

Model Params MMSearch MMSearch+ BrowseComp-VL SimpleVQA LiveVQA FVQA VDR-Bench MMDeepResearch
OpenSearch-VL 30B (3B) 68.70 28.94 41.10 74.90 67.40 73.20 33.50 23.21
Vision-DeepResearch 30B (3B) 69.60 28.50 53.70 66.33 77.60 74.20 37.80 12.78
WeAgent-MMSearch 30B (3B) 77.78 37.82 – 77.73 81.05 79.33 35.68 –
Qwen3.6-35B-A3B + MIRA-Harness 35B (3B) 73.10 33.44 56.64 74.33 78.33 70.00 19.00 41.90
MIRA-SFT-35B-A3B 35B (3B) 80.70 38.91 58.40 79.00 82.00 79.33 29.80 42.61

"–" means not reported. Scores for other agents are from the MIRA paper.

Limitations

The report gate checks structure (length, images, sources, citations that resolve), not whether each claim is true. Web content changes over time, so scores drift. The model was distilled from teacher trajectories and inherits their errors.

Citation

@article{mira2027,
  title   = {MIRA: A Multimodal Illustrated Deep Research Agent for Controllable Reports},
  author  = {Wu, Hongrui and Tuo, Kaiwen and Wang, Congcong and Li, Gen and Dong, Shuai and
             Yu, Xinlei and Hou, Haowen and Peng, Zelin and Wang, Jiaqi},
  year    = {2027}
}
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