diff --git a/.env.example b/.env.example
index fd00877..c36aced 100644
--- a/.env.example
+++ b/.env.example
@@ -22,29 +22,12 @@ ANTHROPIC_API_KEY=your-api-key-here
 # OPENAI_API_KEY=sk-your-openai-key
 # ROUTER_DEFAULT=openai,gpt-5.2
 
-# --- Google Gemini ---
-# GEMINI_API_KEY=your-gemini-key
-# ROUTER_DEFAULT=gemini,gemini-2.5-pro
-
-# --- DeepSeek (cheapest option) ---
-# DEEPSEEK_API_KEY=your-together-or-deepseek-key
-# DEEPSEEK_API_BASE=https://api.together.xyz/v1/chat/completions  # Default: Together.ai
-# ROUTER_DEFAULT=deepseek,deepseek-ai/DeepSeek-V3
-#
-# To use DeepSeek's official API instead:
-# DEEPSEEK_API_BASE=https://api.deepseek.com/chat/completions
-# ROUTER_DEFAULT=deepseek,deepseek-chat
-
-# --- OpenRouter (access 100+ models via single API) ---
+# --- OpenRouter (access Gemini 3 models via single API) ---
 # OPENROUTER_API_KEY=sk-or-your-openrouter-key
-# ROUTER_DEFAULT=openrouter,anthropic/claude-sonnet-4
+# ROUTER_DEFAULT=openrouter,google/gemini-3-pro-preview
 
 # =============================================================================
 # Available Models
 # =============================================================================
 # OpenAI:     gpt-5.2, gpt-5-mini
-# Gemini:     gemini-2.5-pro
-# DeepSeek:   (Together.ai) deepseek-ai/DeepSeek-V3
-#             (Official)    deepseek-chat
-# OpenRouter: anthropic/claude-sonnet-4, google/gemini-3-pro-preview,
-#             openai/gpt-5.2 (100+ more)
+# OpenRouter: google/gemini-3-pro-preview, google/gemini-3-flash-preview
diff --git a/CLAUDE.md b/CLAUDE.md
index 8d2d55c..be22c68 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -282,9 +282,7 @@ Shannon supports routing Claude Agent SDK requests through alternative LLM provi
 | Provider | Models | Use Case |
 |----------|--------|----------|
 | OpenAI | `gpt-5.2`, `gpt-5-mini` | Good tool use, balanced cost/performance |
-| Gemini | `gemini-2.5-pro` | Long context (1M+ tokens), strong reasoning |
-| DeepSeek | `deepseek-ai/DeepSeek-V3`, `deepseek-chat` | Cheapest option for dev/testing |
-| OpenRouter | `anthropic/claude-sonnet-4`, `google/gemini-3-pro-preview`, `openai/gpt-5.2` | Multi-provider access via single API |
+| OpenRouter | `google/gemini-3-pro-preview`, `google/gemini-3-flash-preview` | Access to Gemini 3 models via single API |
 
 **Configuration (in .env):**
 ```bash
@@ -292,17 +290,9 @@ Shannon supports routing Claude Agent SDK requests through alternative LLM provi
 OPENAI_API_KEY=sk-your-key
 ROUTER_DEFAULT=openai,gpt-5.2
 
-# Gemini
-GEMINI_API_KEY=your-gemini-key
-ROUTER_DEFAULT=gemini,gemini-2.5-pro
-
-# DeepSeek (via Together.ai)
-DEEPSEEK_API_KEY=your-together-key
-ROUTER_DEFAULT=deepseek,deepseek-ai/DeepSeek-V3
-
 # OpenRouter
 OPENROUTER_API_KEY=sk-or-your-key
-ROUTER_DEFAULT=openrouter,anthropic/claude-sonnet-4
+ROUTER_DEFAULT=openrouter,google/gemini-3-pro-preview
 ```
 
 **Note:** Shannon is optimized for Anthropic's Claude models. Alternative providers are useful for cost savings during development but may produce varying results.
diff --git a/README.md b/README.md
index a0cf107..5bb0049 100644
--- a/README.md
+++ b/README.md
@@ -269,10 +269,6 @@ Shannon can route requests through alternative AI providers instead of Anthropic
    # Choose one provider:
    OPENAI_API_KEY=sk-...
    # OR
-   GEMINI_API_KEY=...
-   # OR
-   DEEPSEEK_API_KEY=...
-   # OR
    OPENROUTER_API_KEY=sk-or-...
 
    # Set default model:
@@ -286,13 +282,11 @@ Shannon can route requests through alternative AI providers instead of Anthropic
 
 #### Supported Providers
 
-| Provider | Models | Approx. Cost | Notes |
-|----------|--------|--------------|-------|
-| **Anthropic** (default) | Claude Sonnet 4 | $3/$15 per M tokens | Best quality, recommended |
-| **OpenAI** | gpt-5.2, gpt-5-mini | $2.50/$10 per M tokens | Good alternative |
-| **Google Gemini** | gemini-2.5-pro | ~$1.25/$5 per M tokens | Long context (1M+), strong reasoning |
-| **DeepSeek** | DeepSeek-V3 | ~$0.14/$0.28 per M tokens | Cheapest option |
-| **OpenRouter** | 100+ models | Varies | Single API for many models |
+| Provider | Models | Notes |
+|----------|--------|-------|
+| **Anthropic** | Claude Sonnet 4 | Best quality, recommended |
+| **OpenAI** | gpt-5.2, gpt-5-mini | Good alternative |
+| **OpenRouter** | google/gemini-3-pro-preview, google/gemini-3-flash-preview | Access to Gemini 3 models |
 
 #### Disclaimer
 
diff --git a/configs/router-config.json b/configs/router-config.json
index d1a430f..f12973c 100644
--- a/configs/router-config.json
+++ b/configs/router-config.json
@@ -15,32 +15,13 @@
         "use": [["maxcompletiontokens", { "max_completion_tokens": 16384 }]]
       }
     },
-    {
-      "name": "gemini",
-      "api_base_url": "https://generativelanguage.googleapis.com/v1beta/models/",
-      "api_key": "$GEMINI_API_KEY",
-      "models": ["gemini-2.5-pro"],
-      "transformer": {
-        "use": ["gemini"]
-      }
-    },
-    {
-      "name": "deepseek",
-      "api_base_url": "$DEEPSEEK_API_BASE",
-      "api_key": "$DEEPSEEK_API_KEY",
-      "models": ["deepseek-ai/DeepSeek-V3", "deepseek-chat"],
-      "transformer": {
-        "use": ["deepseek", "enhancetool"]
-      }
-    },
     {
       "name": "openrouter",
       "api_base_url": "https://openrouter.ai/api/v1/chat/completions",
       "api_key": "$OPENROUTER_API_KEY",
       "models": [
-        "anthropic/claude-sonnet-4",
         "google/gemini-3-pro-preview",
-        "openai/gpt-5.2"
+        "google/gemini-3-flash-preview"
       ],
       "transformer": {
         "use": ["openrouter"]
diff --git a/docker-compose.yml b/docker-compose.yml
index f551b58..26cbdfa 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -58,9 +58,6 @@ services:
       - HOST=0.0.0.0
       - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY:-}
       - OPENAI_API_KEY=${OPENAI_API_KEY:-}
-      - GEMINI_API_KEY=${GEMINI_API_KEY:-}
-      - DEEPSEEK_API_KEY=${DEEPSEEK_API_KEY:-}
-      - DEEPSEEK_API_BASE=${DEEPSEEK_API_BASE:-https://api.together.xyz/v1/chat/completions}
       - OPENROUTER_API_KEY=${OPENROUTER_API_KEY:-}
       - ROUTER_DEFAULT=${ROUTER_DEFAULT:-openai,gpt-4o}
     healthcheck:
diff --git a/shannon b/shannon
index 760b0b1..e971a2a 100755
--- a/shannon
+++ b/shannon
@@ -125,12 +125,12 @@ cmd_start() {
 
   # Check for API key (router mode can use alternative provider API keys)
   if [ -z "$ANTHROPIC_API_KEY" ] && [ -z "$CLAUDE_CODE_OAUTH_TOKEN" ]; then
-    if [ "$ROUTER" = "true" ] && { [ -n "$OPENAI_API_KEY" ] || [ -n "$GEMINI_API_KEY" ] || [ -n "$DEEPSEEK_API_KEY" ] || [ -n "$OPENROUTER_API_KEY" ]; }; then
+    if [ "$ROUTER" = "true" ] && { [ -n "$OPENAI_API_KEY" ] || [ -n "$OPENROUTER_API_KEY" ]; }; then
       # Router mode with alternative provider - set a placeholder for SDK init
       export ANTHROPIC_API_KEY="router-mode"
     else
       echo "ERROR: Set ANTHROPIC_API_KEY or CLAUDE_CODE_OAUTH_TOKEN in .env"
-      echo "       (or use ROUTER=true with OPENAI_API_KEY, GEMINI_API_KEY, DEEPSEEK_API_KEY, or OPENROUTER_API_KEY)"
+      echo "       (or use ROUTER=true with OPENAI_API_KEY or OPENROUTER_API_KEY)"
       exit 1
     fi
   fi
@@ -166,8 +166,8 @@ cmd_start() {
       echo "Starting claude-code-router..."
 
       # Check for provider API keys
-      if [ -z "$OPENAI_API_KEY" ] && [ -z "$GEMINI_API_KEY" ] && [ -z "$DEEPSEEK_API_KEY" ] && [ -z "$OPENROUTER_API_KEY" ]; then
-        echo "WARNING: No provider API key set (OPENAI_API_KEY, GEMINI_API_KEY, DEEPSEEK_API_KEY, or OPENROUTER_API_KEY). Router may not work."
+      if [ -z "$OPENAI_API_KEY" ] && [ -z "$OPENROUTER_API_KEY" ]; then
+        echo "WARNING: No provider API key set (OPENAI_API_KEY or OPENROUTER_API_KEY). Router may not work."
       fi
 
       # Start router with profile