Feat: Support Phi-3.5-MoE in SGLang

docs/supported_models/generative_models.md

@@ -30,7 +30,7 @@ in the GitHub search bar.
 | **Llama** (2, 3.x, 4 series)        | `meta-llama/Llama-4-Scout-17B-16E-Instruct`       | Meta’s open LLM series, spanning 7B to 400B parameters (Llama 2, 3, and new Llama 4) with well-recognized performance. [SGLang provides Llama-4 model-specific optimizations](https://docs.sglang.ai/references/llama4)  |
 | **Mistral** (Mixtral, NeMo, Small3) | `mistralai/Mistral-7B-Instruct-v0.2`             | Open 7B LLM by Mistral AI with strong performance; extended into MoE (“Mixtral”) and NeMo Megatron variants for larger scale. |
 | **Gemma** (v1, v2, v3)              | `google/gemma-3-1b-it`                            | Google’s family of efficient multilingual models (1B–27B); Gemma 3 offers a 128K context window, and its larger (4B+) variants support vision input. |
-| **Phi** (Phi-3, Phi-4 series)      | `microsoft/Phi-4-multimodal-instruct`            | Microsoft’s Phi family of small models (1.3B–5.6B); Phi-4-mini is a high-accuracy text model and Phi-4-multimodal (5.6B) processes text, images, and speech in one compact model. |
+| **Phi** (Phi-3, Phi-4, Phi-MoE series)      | `microsoft/Phi-4-multimodal-instruct`, `microsoft/Phi-3.5-MoE-instruct`            | Microsoft’s Phi family of small models (1.3B–5.6B); Phi-4-mini is a high-accuracy text model, Phi-3.5-MoE is a mixture-of-experts model, and Phi-4-multimodal (5.6B) processes text, images, and speech. |
 | **MiniCPM** (v3, 4B)               | `openbmb/MiniCPM3-4B`                            | OpenBMB’s series of compact LLMs for edge devices; MiniCPM 3 (4B) achieves GPT-3.5-level results in text tasks. |
 | **OLMoE** (Open MoE)               | `allenai/OLMoE-1B-7B-0924`                       | Allen AI’s open Mixture-of-Experts model (7B total, 1B active parameters) delivering state-of-the-art results with sparse expert activation. |
 | **StableLM** (3B, 7B)               | `stabilityai/stablelm-tuned-alpha-7b`            | StabilityAI’s early open-source LLM (3B & 7B) for general text generation; a demonstration model with basic instruction-following ability. |