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+ ---
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+ license: apache-2.0
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+ tags:
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+ - robotics
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+ - vla
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+ - knowledge-distillation
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+ - model-compression
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+ - edge-deployment
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+ - action-chunking
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+ - multi-teacher
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+ datasets:
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+ - lerobot/pusht
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+ - lerobot/libero
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+ language:
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+ - en
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+ library_name: forge
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+ pipeline_tag: robotics
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+ ---
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+
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+ # FORGE-Nano: Compressed VLA for Real-Time Robot Control
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+
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+ <p align="center">
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+ <strong>7B VLA teacher &rarr; <1B student &rarr; 14.1 fps on edge GPU</strong>
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+ </p>
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+
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+ ## What is FORGE?
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+
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+ **FORGE** (Fast Optimized Robot Generation Engine) is a model distillation pipeline that takes any 7B+ Vision-Language-Action (VLA) model and compresses it to **<2GB for real-time edge deployment** on NVIDIA Jetson and Apple Silicon.
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+
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+ Part of the **ANIMA** agentic robotics AI stack by [Robot Flow Labs](https://robotflowlabs.com).
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+
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+ ## Architecture
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+
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+ ```
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+ Teacher (7B VLA)
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+ |
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+ v
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+ [SigLIP-SO400M] ---> [Bridge Attention] ---> [Qwen2.5-0.5B + LoRA] ---> [Action Head]
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+ (frozen) (64 queries, 4L) (rank=32/64) (diffusion/flow)
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+ 472.3M params 39.7M params ~494M params ~1.7M params
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+ ```
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+
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+ **Total: 967.9M params** (495.6M trainable, 472.3M frozen)
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+
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+ ## Benchmark Results (4x NVIDIA L4 24GB)
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+
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+ ### Student Variants
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+ | Variant | Params | FP32 fps | FP16 fps | FP16 Speedup | Training Loss Reduction |
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+ |---------|--------|----------|----------|--------------|------------------------|
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+ | Nano (diffusion, LoRA=32) | 967.9M | 7.9 | **11.0** | 1.39x | 67.0% |
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+ | Nano (diffusion, LoRA=64) | 972.3M | 7.9 | 10.8 | 1.37x | **76.9%** |
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+ | Nano (flow, LoRA=32) | 967.9M | **8.2** | **12.6** | **1.54x** | 85.8% |
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+ | Small (diffusion) | 2097.7M | 6.2 | 9.9 | -- | -- |
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+ | Small (flow) | 2097.7M | 6.1 | **11.3** | -- | -- |
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+
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+ ### Full Pipeline: Build -> Train -> Prune -> Deploy
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+ | Configuration | Post-Prune Params | FP32 fps | FP16 fps | Loss Reduction |
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+ |---------------|-------------------|----------|----------|----------------|
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+ | Diffusion + p75 + INT4 | 830.8M | 10.0 | 12.0 | 41.4% |
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+ | Flow + p50 + INT4 | **739.3M** | **14.1** | 7.8 | 76.3% |
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+ | LoRA-64 + p90 + INT4 | 880.8M | 9.1 | 11.2 | **86.3%** |
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+ | **Flow + LoRA-64 + p60** | **774.1M** | **12.7** | **14.1** | 75.7% |
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+ | No prune + INT8 | 922.2M | 8.1 | 11.0 | 59.4% |
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+
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+ ### Multi-GPU Scaling
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+ | GPUs | FP32 b=16 | FP16 b=32 |
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+ |------|-----------|-----------|
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+ | 1 GPU | 9.3 fps | **33.6 fps** |
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+ | 2 GPU | 13.5 fps | -- |
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+ | 4 GPU | **13.6 fps** | 31.6 fps |
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+
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+ ### Multi-Teacher Distillation
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+ - **5 teachers** fit across 2 GPUs (22.7 GB total)
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+ - Router learns optimal teacher weighting in <50 steps
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+ - Best config: balanced (alpha_task=0.3) achieves **76.1% loss reduction**
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+ - Supports: OpenVLA-7B, RDT2-FM, SmolVLA, BitVLA, Pi0
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+
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+ ### Pruning Results
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+ | Pruning Ratio | Layers | Params | FP32 fps | Speedup |
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+ |---------------|--------|--------|----------|---------|
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+ | No prune | 24 | 967.9M | 7.9 | 1.0x |
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+ | 90% keep | 18 | 880.8M | 9.1 | 1.15x |
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+ | 75% keep | 15 | 830.8M | 10.0 | 1.27x |
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+ | 60% keep | 11 | 774.1M | 12.7 | **1.61x** |
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+ | 50% keep | 9 | 739.3M | **14.1** | **1.78x** |
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+
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+ ## Recommended Configurations
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+
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+ ### Production (Edge Deployment)
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+ ```yaml
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+ variant: nano
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+ action_head: flow
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+ lora_rank: 64
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+ prune_ratio: 0.60
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+ target_bits: 4
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+ # Result: 774M params, FP16 14.1 fps, <600MB INT4
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+ ```
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+
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+ ### Quality-First
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+ ```yaml
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+ variant: nano
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+ action_head: diffusion
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+ lora_rank: 32
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+ prune_ratio: 0.75
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+ target_bits: 8
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+ # Result: 830M params, 92.3% loss reduction
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+ ```
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+
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+ ## Key Findings
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+
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+ 1. **Flow matching head is 15% faster** than diffusion at FP16 inference (12.6 vs 11.0 fps)
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+ 2. **LoRA rank=64 trains 10% better** than rank=32 (76.9% vs 67.0% loss reduction) with negligible speed cost
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+ 3. **Aggressive pruning works**: 50% layer removal still produces a functional model at 14.1 fps
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+ 4. **FP16 autocast gives 1.4-1.5x speedup** for free — always use it in production
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+ 5. **Multi-teacher routing converges fast**: Router learns to weight teachers optimally in <50 steps
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+
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+ ## Supported Teachers
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+
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+ | Teacher | Type | Params | Chunk Size |
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+ |---------|------|--------|------------|
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+ | OpenVLA-7B | Token-AR | 7.6B | H=1 |
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+ | RDT2-FM | Diffusion | 1.2B | H=8 |
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+ | SmolVLA | Parallel | 0.5B | H=1 |
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+ | BitVLA | Quantized | 5.9B | H=1 |
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+ | Pi0 | Flow | 3.0B | H=4 |
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+
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+ ## Supported Robots
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+
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+ | Robot | DoF | Action Head | Horizon | Control Rate |
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+ |-------|-----|-------------|---------|-------------|
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+ | Franka Panda | 7 | Flow | H=8 | 20 Hz |
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+ | ALOHA (bimanual) | 14 | Chunk | H=16 | 50 Hz |
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+ | xArm | 6 | Flow | H=4 | 100 Hz |
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+ | UR5e | 6 | Flow | H=4 | 125 Hz |
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+
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+ ## Pipeline
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+
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+ ```
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+ Teacher Labels -> Knowledge Distillation -> Layer Pruning -> Quantization -> Edge Export
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+ (HDF5) (LoRA + Bridge) (Chunk-aware) (INT4/INT8) (TRT/ONNX/MLX)
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+ ```
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+
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+ ## Usage
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+
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+ ```bash
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+ pip install anima-forge
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+
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+ # Full pipeline
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+ forge pipeline --device cuda --variant nano --steps 5000
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+
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+ # Auto-detect model dimensions
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+ forge autosense --model-dir /path/to/models
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+
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+ # Benchmark
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+ forge benchmark run --device cuda
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+
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+ # Deploy
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+ forge serve --port 8000
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+ ```
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+
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+ ## Citation
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+
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+ ```bibtex
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+ @software{forge2026,
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+ title={FORGE: Fast Optimized Robot Generation Engine},
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+ author={Robot Flow Labs},
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+ year={2026},
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+ url={https://github.com/RobotFlow-Labs/anima-forge-distillation-pipeline}
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+ }
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+ ```
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+
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+ ## License
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+
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+ Apache 2.0
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