diff --git a/README.md b/README.md
index 627bb37..0c49608 100644
--- a/README.md
+++ b/README.md
@@ -662,9 +662,9 @@ Config file: `~/.nanobot/config.json`
 > [!TIP]
 > - **Groq** provides free voice transcription via Whisper. If configured, Telegram voice messages will be automatically transcribed.
 > - **Zhipu Coding Plan**: If you're on Zhipu's coding plan, set `"apiBase": "https://open.bigmodel.cn/api/coding/paas/v4"` in your zhipu provider config.
-> - **Alibaba Cloud Coding Plan**: If you're on the Alibaba Cloud Coding Plan (BaiLian coding assistance), add configuration for `dashscope_coding_plan` provider with an API key starting with `sk-sp-` in your config. This provider uses OpenAI-compatible endpoint `https://coding.dashscope.aliyuncs.com/v1`.
 > - **MiniMax (Mainland China)**: If your API key is from MiniMax's mainland China platform (minimaxi.com), set `"apiBase": "https://api.minimaxi.com/v1"` in your minimax provider config.
 > - **VolcEngine Coding Plan**: If you're on VolcEngine's coding plan, set `"apiBase": "https://ark.cn-beijing.volces.com/api/coding/v3"` in your volcengine provider config.
+> - **Alibaba Cloud Coding Plan**: If you're on the Alibaba Cloud Coding Plan (BaiLian), set `"apiBase": "https://coding.dashscope.aliyuncs.com/v1"` in your dashscope provider config.
 
 | Provider | Purpose | Get API Key |
 |----------|---------|-------------|
diff --git a/nanobot/config/schema.py b/nanobot/config/schema.py
index e80c8d0..2073eeb 100644
--- a/nanobot/config/schema.py
+++ b/nanobot/config/schema.py
@@ -5,7 +5,7 @@ from typing import Literal
 
 from pydantic import BaseModel, ConfigDict, Field
 from pydantic.alias_generators import to_camel
-from pydantic_settings import BaseSettings, SettingsConfigDict
+from pydantic_settings import BaseSettings
 
 
 class Base(BaseModel):
@@ -258,20 +258,13 @@ class ProvidersConfig(Base):
     groq: ProviderConfig = Field(default_factory=ProviderConfig)
     zhipu: ProviderConfig = Field(default_factory=ProviderConfig)
     dashscope: ProviderConfig = Field(default_factory=ProviderConfig)  # 阿里云通义千问
-    dashscope_coding_plan: ProviderConfig = Field(
-        default_factory=ProviderConfig
-    )  # 阿里云百炼Coding Plan
     vllm: ProviderConfig = Field(default_factory=ProviderConfig)
     gemini: ProviderConfig = Field(default_factory=ProviderConfig)
     moonshot: ProviderConfig = Field(default_factory=ProviderConfig)
     minimax: ProviderConfig = Field(default_factory=ProviderConfig)
     aihubmix: ProviderConfig = Field(default_factory=ProviderConfig)  # AiHubMix API gateway
-    siliconflow: ProviderConfig = Field(
-        default_factory=ProviderConfig
-    )  # SiliconFlow (硅基流动) API gateway
-    volcengine: ProviderConfig = Field(
-        default_factory=ProviderConfig
-    )  # VolcEngine (火山引擎) API gateway
+    siliconflow: ProviderConfig = Field(default_factory=ProviderConfig)  # SiliconFlow (硅基流动)
+    volcengine: ProviderConfig = Field(default_factory=ProviderConfig)  # VolcEngine (火山引擎)
     openai_codex: ProviderConfig = Field(default_factory=ProviderConfig)  # OpenAI Codex (OAuth)
     github_copilot: ProviderConfig = Field(default_factory=ProviderConfig)  # Github Copilot (OAuth)
 
@@ -326,20 +319,6 @@ class MCPServerConfig(Base):
     tool_timeout: int = 30  # seconds before a tool call is cancelled
 
 
-class TTSConfig(Base):
-    """Text-to-Speech configuration."""
-
-    provider: str = "edge_tts"  # Default TTS provider
-    voice: str = "en-US-ChristopherNeural"  # Default voice
-    speed: float = 1.0  # Voice speed multiplier
-
-
-class AudioConfig(Base):
-    """Audio configuration."""
-
-    tts: TTSConfig = Field(default_factory=TTSConfig)
-
-
 class ToolsConfig(Base):
     """Tools configuration."""
 
@@ -357,7 +336,6 @@ class Config(BaseSettings):
     providers: ProvidersConfig = Field(default_factory=ProvidersConfig)
     gateway: GatewayConfig = Field(default_factory=GatewayConfig)
     tools: ToolsConfig = Field(default_factory=ToolsConfig)
-    audio: AudioConfig = Field(default_factory=AudioConfig)
 
     @property
     def workspace_path(self) -> Path:
diff --git a/nanobot/providers/registry.py b/nanobot/providers/registry.py
index 3b6659e..59ba31a 100644
--- a/nanobot/providers/registry.py
+++ b/nanobot/providers/registry.py
@@ -350,26 +350,6 @@ PROVIDERS: tuple[ProviderSpec, ...] = (
         strip_model_prefix=False,
         model_overrides=(),
     ),
-    # === Coding Plan Gateway Providers =====================================
-    # Alibaba Cloud Coding Plan: OpenAI-compatible gateway for coding assistance.
-    # Uses special API key format starting with "sk-sp-" to distinguish it
-    # from regular dashscope keys. Uses the OpenAI-compatible endpoint.
-    ProviderSpec(
-        name="dashscope_coding_plan",
-        keywords=("dashscope-coding-plan", "coding-plan", "aliyun-coding", "bailian-coding"),
-        env_key="DASHSCOPE_CODING_PLAN_API_KEY",
-        display_name="Alibaba Cloud Coding Plan",
-        litellm_prefix="openai",  # → openai/{model} (uses OpenAI-compatible endpoint)
-        skip_prefixes=("openai/", "dashscope/", "openrouter/"),
-        env_extras=(),
-        is_gateway=True,
-        is_local=False,
-        detect_by_key_prefix="sk-sp-",  # coding plan API keys start with "sk-sp-"
-        detect_by_base_keyword="coding.dashscope",
-        default_api_base="https://coding.dashscope.aliyuncs.com/v1",
-        strip_model_prefix=True,  # Strip "dashscope_coding_plan/" prefix
-        model_overrides=(),
-    ),
     # === Auxiliary (not a primary LLM provider) ============================
     # Groq: mainly used for Whisper voice transcription, also usable for LLM.
     # Needs "groq/" prefix for LiteLLM routing. Placed last — it rarely wins fallback.