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api-docs/benchmarks/wifi-pose-efficiency-frontier.md
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@@ -5,10 +5,15 @@ PCK@20 (MultiFormer Table VII metric: `‖pred−gt‖ ≤ 0.2·‖R-shoulder
The flagship [`ruvnet/wifi-densepose-mmfi-pose`](https://huggingface.co/ruvnet/wifi-densepose-mmfi-pose)
reaches **83.59%** torso-PCK@20 (vs MultiFormer 72.25%, CSI2Pose 68.41%). But the headline number
isn't the whole story for **edge deployment** — on a Raspberry Pi / ESP32-class target, *params and
isn't the whole story for **edge deployment** — on a Raspberry Pi-class edge host, *params and
latency* matter as much as accuracy. So we swept model size to map the **accuracy-per-parameter
frontier**: how small can a WiFi-CSI pose model be and still beat the prior published SOTA?
> **Hardware compatibility boundary.** These models consume MM-Fi tensors shaped
> `[3,114,10]`. Parameter size alone does not make that input, model architecture, or runtime
> compatible with an ESP32-S3/C6 capture node. The measurements below are dataset and x86/GPU
> measurements; no ESP32 inference latency or live ESP32-to-MM-Fi adapter is claimed.
## The frontier
| Model | Params | Latency (batch=1) | torso-PCK@20 | vs SOTA (72.25%) |
@@ -38,8 +43,10 @@ Size alone isn't the claim — what matters is **accuracy at the deployed precis
**The honest edge result:** `micro` is **lossless at int8 (73.5 KB, 74.70%)**, and at **int4 (36.7 KB)
naïve post-training quantization falls below SOTA (70.21%) — but quantization-aware training fully
recovers it to 74.46%**, still beating MultiFormer. So a **SOTA-beating WiFi-pose model genuinely runs
in ~37 KB int4** (with QAT) or **~73 KB int8** (no retraining) — deployable on the sensing node itself.
recovers it to 74.46%**, still beating MultiFormer. So a **SOTA-beating WiFi-pose model fits in
~37 KB int4** (with QAT) or **~73 KB int8** (no retraining). That is a model-footprint result, not
evidence that it runs on an ESP32 sensing node; a compatible capture adapter and embedded runtime
still need to be implemented and measured.
`nano` (40K params) sits at the SOTA line in fp32 and is best treated as int8.
(We also tested flagship→tiny **knowledge distillation**: it did *not* help — the tiny students reach