From f52d1f8f44655aa221dbc4ca16c04b2f624993c8 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 14 Mar 2026 09:12:14 +0000
Subject: [PATCH 1/2] Initial plan


From 67b43e1040a53f13e77fd8b6d8672e7c1f5d29dd Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 14 Mar 2026 09:17:53 +0000
Subject: [PATCH 2/2] docs: clarify Intel XPU feature and model support gaps

Co-authored-by: zhenwei-intel <109187816+zhenwei-intel@users.noreply.github.com>
---
 docs/models/hardware_supported_models/xpu.md | 35 ++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/docs/models/hardware_supported_models/xpu.md b/docs/models/hardware_supported_models/xpu.md
index 2857d80a7698..40c56c874e18 100644
--- a/docs/models/hardware_supported_models/xpu.md
+++ b/docs/models/hardware_supported_models/xpu.md
@@ -6,6 +6,41 @@
 | -------- |
 | [Intel® Arc™ Pro B-Series Graphics](https://www.intel.com/content/www/us/en/products/docs/discrete-gpus/arc/workstations/b-series/overview.html) |
 
+## Current Gaps on Intel XPU
+
+The following items are currently limited or unsupported on Intel XPU:
+
+### Feature Gaps
+
+- **CUDA graph mode** is not supported on Intel XPU yet ([tracking issue](https://github.com/vllm-project/vllm/issues/26970)).
+- **Flash Attention with `float32`** falls back to Triton Attention on XPU.
+- **`bfloat16` on Intel Arc A770** is blocked due to known accuracy issues (use `float16` instead).
+- **XPU graph capture** has additional limits in multi-GPU communication scenarios.
+
+### Quantization Gaps on Intel GPU
+
+From the quantization hardware matrix in
+[`docs/features/quantization/README.md`](../../features/quantization/README.md),
+the following are not supported on Intel GPU:
+
+- Marlin (GPTQ/AWQ/FP8/FP4)
+- INT8 (W8A8)
+- FP8 (W8A8)
+- bitsandbytes
+- DeepSpeedFP
+- GGUF
+
+## Model Support Scope
+
+vLLM currently publishes a **validated model list** for Intel XPU (below), but
+does not maintain an exhaustive "unsupported model" deny list.
+
+For Intel XPU, treat a model as **not supported / not yet validated** when any of the following is true:
+
+- The model architecture or checkpoint is **not listed** in the validated tables below.
+- The model depends on a quantization method listed above as unsupported on Intel GPU.
+- The model only works with unsupported XPU feature combinations.
+
 ## Recommended Models
 
 ### Text-only Language Models