diff --git a/docs/advanced-usage.md b/docs/advanced-usage.md
index 8db3cd0..a86c7c9 100644
--- a/docs/advanced-usage.md
+++ b/docs/advanced-usage.md
@@ -4,16 +4,33 @@ This guide covers advanced features, configuration options, and workflows for po
 
 ## Table of Contents
 
-- [Model Configuration](#model-configuration)
-- [Model Usage Restrictions](#model-usage-restrictions)
-- [Thinking Modes](#thinking-modes)
-- [Tool Parameters](#tool-parameters)
-- [Context Revival: AI Memory Beyond Context Limits](#context-revival-ai-memory-beyond-context-limits)
-- [Collaborative Workflows](#collaborative-workflows)
-- [Working with Large Prompts](#working-with-large-prompts)
-- [Vision Support](#vision-support)
-- [Web Search Integration](#web-search-integration)
-- [System Prompts](#system-prompts)
+- [Advanced Usage Guide](#advanced-usage-guide)
+  - [Table of Contents](#table-of-contents)
+  - [Model Configuration](#model-configuration)
+  - [Model Usage Restrictions](#model-usage-restrictions)
+  - [Thinking Modes](#thinking-modes)
+    - [Thinking Modes \& Token Budgets](#thinking-modes--token-budgets)
+    - [How to Use Thinking Modes](#how-to-use-thinking-modes)
+      - [Optimizing Token Usage \& Costs](#optimizing-token-usage--costs)
+  - [Tool Parameters](#tool-parameters)
+    - [File-Processing Tools](#file-processing-tools)
+  - [Context Revival: AI Memory Beyond Context Limits](#context-revival-ai-memory-beyond-context-limits)
+    - [**The Breakthrough**](#the-breakthrough)
+    - [Key Benefits](#key-benefits)
+    - [Quick Example](#quick-example)
+  - [Collaborative Workflows](#collaborative-workflows)
+    - [Design → Review → Implement](#design--review--implement)
+    - [Code → Review → Fix](#code--review--fix)
+    - [Debug → Analyze → Solution → Precommit Check → Publish](#debug--analyze--solution--precommit-check--publish)
+    - [Refactor → Review → Implement → Test](#refactor--review--implement--test)
+    - [Tool Selection Guidance](#tool-selection-guidance)
+  - [Vision Support](#vision-support)
+  - [Working with Large Prompts](#working-with-large-prompts)
+  - [Web Search Integration](#web-search-integration)
+  - [System Prompts](#system-prompts)
+    - [Prompt Architecture](#prompt-architecture)
+    - [Specialized Expertise](#specialized-expertise)
+    - [Customization](#customization)
 
 ## Model Configuration
 
@@ -41,6 +58,9 @@ Regardless of your default configuration, you can specify models per request:
 | **`o3-mini`** | OpenAI | 200K tokens | Balanced speed/quality | Moderate complexity tasks |
 | **`o4-mini`** | OpenAI | 200K tokens | Latest reasoning model | Optimized for shorter contexts |
 | **`gpt4.1`** | OpenAI | 1M tokens | Latest GPT-4 with extended context | Large codebase analysis, comprehensive reviews |
+| **`gpt5.1`** (GPT-5.1) | OpenAI | 400K tokens | Flagship reasoning model with configurable thinking effort | Complex problems, balanced agent/coding flows |
+| **`gpt5.1-codex`** (GPT-5.1 Codex) | OpenAI | 400K tokens | Agentic coding specialization (Responses API) | Advanced coding tasks, structured code generation |
+| **`gpt5.1-codex-mini`** (GPT-5.1 Codex mini) | OpenAI | 400K tokens | Cost-efficient Codex variant with streaming | Balanced coding tasks, cost-conscious development |
 | **`gpt5`** (GPT-5) | OpenAI | 400K tokens | Advanced model with reasoning support | Complex problems requiring advanced reasoning |
 | **`gpt5-mini`** (GPT-5 Mini) | OpenAI | 400K tokens | Efficient variant with reasoning | Balanced performance and capability |
 | **`gpt5-nano`** (GPT-5 Nano) | OpenAI | 400K tokens | Fastest, cheapest GPT-5 variant | Summarization and classification tasks |
@@ -61,6 +81,10 @@ cloud models (expensive/powerful) AND local models (free/private) in the same co
   - **Flash Lite 2.0**: Text-only lightweight model (no thinking support)
 - **O3/O4 Models**: Excellent reasoning, systematic analysis, 200K context
 - **GPT-4.1**: Extended context window (1M tokens), general capabilities
+- **GPT-5.1 Series**: Latest flagship reasoning models, 400K context
+  - **GPT-5.1**: Flagship model with configurable thinking effort and vision
+  - **GPT-5.1 Codex**: Agentic coding specialization (Responses API, non-streaming)
+  - **GPT-5.1 Codex mini**: Cost-efficient Codex variant with streaming support
 - **GPT-5 Series**: Advanced reasoning models, 400K context
   - **GPT-5**: Full-featured with reasoning support and vision
   - **GPT-5 Mini**: Balanced efficiency and capability
@@ -161,7 +185,7 @@ All tools that work with files support **both individual files and entire direct
 **`analyze`** - Analyze files or directories
 - `files`: List of file paths or directories (required)
 - `question`: What to analyze (required)  
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `analysis_type`: architecture|performance|security|quality|general
 - `output_format`: summary|detailed|actionable
 - `thinking_mode`: minimal|low|medium|high|max (default: medium, Gemini only)
@@ -176,7 +200,7 @@ All tools that work with files support **both individual files and entire direct
 
 **`codereview`** - Review code files or directories
 - `files`: List of file paths or directories (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `review_type`: full|security|performance|quick
 - `focus_on`: Specific aspects to focus on
 - `standards`: Coding standards to enforce
@@ -192,7 +216,7 @@ All tools that work with files support **both individual files and entire direct
 
 **`debug`** - Debug with file context
 - `error_description`: Description of the issue (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `error_context`: Stack trace or logs
 - `files`: Files or directories related to the issue
 - `runtime_info`: Environment details
@@ -208,7 +232,7 @@ All tools that work with files support **both individual files and entire direct
 
 **`thinkdeep`** - Extended analysis with file context
 - `current_analysis`: Your current thinking (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `problem_context`: Additional context
 - `focus_areas`: Specific aspects to focus on
 - `files`: Files or directories for context
@@ -224,7 +248,7 @@ All tools that work with files support **both individual files and entire direct
 **`testgen`** - Comprehensive test generation with edge case coverage
 - `files`: Code files or directories to generate tests for (required)
 - `prompt`: Description of what to test, testing objectives, and scope (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `test_examples`: Optional existing test files as style/pattern reference
 - `thinking_mode`: minimal|low|medium|high|max (default: medium, Gemini only)
 
@@ -239,7 +263,7 @@ All tools that work with files support **both individual files and entire direct
 - `files`: Code files or directories to analyze for refactoring opportunities (required)
 - `prompt`: Description of refactoring goals, context, and specific areas of focus (required)
 - `refactor_type`: codesmells|decompose|modernize|organization (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `focus_areas`: Specific areas to focus on (e.g., 'performance', 'readability', 'maintainability', 'security')
 - `style_guide_examples`: Optional existing code files to use as style/pattern reference
 - `thinking_mode`: minimal|low|medium|high|max (default: medium, Gemini only)
diff --git a/docs/configuration.md b/docs/configuration.md
index 95d54b0..0127f52 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -63,7 +63,7 @@ CUSTOM_MODEL_NAME=llama3.2                          # Default model
 
 **Default Model Selection:**
 ```env
-# Options: 'auto', 'pro', 'flash', 'o3', 'o3-mini', 'o4-mini', etc.
+# Options: 'auto', 'pro', 'flash', 'gpt5.1', 'gpt5.1-codex', 'gpt5.1-codex-mini', 'o3', 'o3-mini', 'o4-mini', etc.
 DEFAULT_MODEL=auto  # Claude picks best model for each task (recommended)
 ```
 
@@ -81,12 +81,14 @@ DEFAULT_MODEL=auto  # Claude picks best model for each task (recommended)
 
   | Provider | Canonical Models | Notable Aliases |
   |----------|-----------------|-----------------|
-  | OpenAI | `gpt-5`, `gpt-5-pro`, `gpt-5-mini`, `gpt-5-nano`, `gpt-5-codex`, `gpt-4.1`, `o3`, `o3-mini`, `o3-pro`, `o4-mini` | `gpt5`, `gpt5pro`, `mini`, `nano`, `codex`, `o3mini`, `o3pro`, `o4mini` |
+  | OpenAI | `gpt-5.1`, `gpt-5.1-codex`, `gpt-5.1-codex-mini`, `gpt-5`, `gpt-5-pro`, `gpt-5-mini`, `gpt-5-nano`, `gpt-5-codex`, `gpt-4.1`, `o3`, `o3-mini`, `o3-pro`, `o4-mini` | `gpt5.1`, `gpt-5.1`, `5.1`, `gpt5.1-codex`, `codex-5.1`, `codex-mini`, `gpt5`, `gpt5pro`, `mini`, `nano`, `codex`, `o3mini`, `o3pro`, `o4mini` |
   | Gemini | `gemini-2.5-pro`, `gemini-2.5-flash`, `gemini-2.0-flash`, `gemini-2.0-flash-lite` | `pro`, `gemini-pro`, `flash`, `flash-2.0`, `flashlite` |
   | X.AI | `grok-4`, `grok-3`, `grok-3-fast` | `grok`, `grok4`, `grok3`, `grok3fast`, `grokfast` |
   | OpenRouter | See `conf/openrouter_models.json` for the continually evolving catalogue | e.g., `opus`, `sonnet`, `flash`, `pro`, `mistral` |
   | Custom | User-managed entries such as `llama3.2` | Define your own aliases per entry |
 
+  Latest OpenAI entries (`gpt-5.1`, `gpt-5.1-codex`, `gpt-5.1-codex-mini`) mirror the official model cards released on November 13, 2025: all three expose 400K-token contexts with 128K-token outputs, reasoning-token support, and multimodal inputs. `gpt-5.1-codex` is Responses-only with streaming disabled, while the base `gpt-5.1` and Codex mini support streaming along with full code-generation flags. Update your manifests if you run custom deployments so these capability bits stay accurate.
+
   > **Tip:** Copy the JSON file you need, customise it, and point the corresponding `*_MODELS_CONFIG_PATH` environment variable to your version. This lets you enable or disable capabilities (JSON mode, function calling, temperature support, code generation) without editing Python.
 
 ### Code Generation Capability
@@ -105,7 +107,7 @@ The `allow_code_generation` capability enables models to generate complete, prod
 
 **When to Enable:**
 
-- **Enable for**: Models MORE capable than your primary CLI's model (e.g., GPT-5, GPT-5 Pro when using Claude Code with Sonnet 4.5)
+- **Enable for**: Models MORE capable than your primary CLI's model (e.g., GPT-5.1 Codex, GPT-5 Pro, GPT-5.1 when using Claude Code with Sonnet 4.5)
 - **Purpose**: Get complete implementations from a more powerful reasoning model that your primary CLI can then review and apply
 - **Use case**: Large-scale implementations, major refactoring, complete module creation
 
@@ -169,7 +171,7 @@ Control which models can be used from each provider for cost control, compliance
 # Empty or unset = all models allowed (default)
 
 # OpenAI model restrictions
-OPENAI_ALLOWED_MODELS=o3-mini,o4-mini,mini
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex-mini,gpt-5-mini,o3-mini,o4-mini,mini
 
 # Gemini model restrictions  
 GOOGLE_ALLOWED_MODELS=flash,pro
@@ -193,12 +195,17 @@ OPENROUTER_ALLOWED_MODELS=opus,sonnet,mistral
 OPENAI_ALLOWED_MODELS=o4-mini
 GOOGLE_ALLOWED_MODELS=flash
 
+# High-performance setup
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex,gpt-5.1
+GOOGLE_ALLOWED_MODELS=pro
+
 # Single model standardization
 OPENAI_ALLOWED_MODELS=o4-mini
 GOOGLE_ALLOWED_MODELS=pro
 
 # Balanced selection
 GOOGLE_ALLOWED_MODELS=flash,pro
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex-mini,gpt-5-mini,o4-mini
 XAI_ALLOWED_MODELS=grok,grok-3-fast
 ```
 
@@ -240,6 +247,8 @@ LOG_LEVEL=DEBUG  # Default: shows detailed operational messages
 DEFAULT_MODEL=auto
 GEMINI_API_KEY=your-gemini-key
 OPENAI_API_KEY=your-openai-key
+GOOGLE_ALLOWED_MODELS=flash,pro
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex-mini,gpt-5-mini,o4-mini
 XAI_API_KEY=your-xai-key
 LOG_LEVEL=DEBUG
 CONVERSATION_TIMEOUT_HOURS=1
@@ -252,7 +261,7 @@ DEFAULT_MODEL=auto
 GEMINI_API_KEY=your-gemini-key
 OPENAI_API_KEY=your-openai-key
 GOOGLE_ALLOWED_MODELS=flash
-OPENAI_ALLOWED_MODELS=o4-mini
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex-mini,o4-mini
 LOG_LEVEL=INFO
 CONVERSATION_TIMEOUT_HOURS=3
 ```
diff --git a/docs/custom_models.md b/docs/custom_models.md
index 28c1a85..a5402b0 100644
--- a/docs/custom_models.md
+++ b/docs/custom_models.md
@@ -61,6 +61,9 @@ The curated defaults in `conf/openrouter_models.json` include popular entries su
 | `llama3` | `meta-llama/llama-3-70b` | Large open-weight text model |
 | `deepseek-r1` | `deepseek/deepseek-r1-0528` | DeepSeek reasoning model |
 | `perplexity` | `perplexity/llama-3-sonar-large-32k-online` | Search-augmented model |
+| `gpt5.1`, `gpt-5.1`, `5.1` | `openai/gpt-5.1` | Flagship GPT-5.1 with reasoning and vision |
+| `gpt5.1-codex`, `codex-5.1` | `openai/gpt-5.1-codex` | Agentic coding specialization (Responses API) |
+| `codex-mini`, `gpt5.1-codex-mini` | `openai/gpt-5.1-codex-mini` | Cost-efficient Codex variant with streaming |
 
 Consult the JSON file for the full list, aliases, and capability flags. Add new entries as OpenRouter releases additional models.
 
@@ -78,6 +81,18 @@ Native catalogues (`conf/openai_models.json`, `conf/gemini_models.json`, `conf/x
 - Advertise support for JSON mode or vision if the upstream provider adds it
 - Adjust token limits when providers increase context windows
 
+### Latest OpenAI releases
+
+OpenAI's November 13, 2025 drop introduced `gpt-5.1`, `gpt-5.1-codex`, and `gpt-5.1-codex-mini`, all of which now ship in `conf/openai_models.json`:
+
+| Model | Highlights | Notes |
+|-------|------------|-------|
+| `gpt-5.1` | 400K context, 128K output, multimodal IO, configurable reasoning effort | Streaming enabled; use for balanced agent/coding flows |
+| `gpt-5.1-codex` | Responses-only agentic coding version of GPT-5.1 | Streaming disabled; `use_openai_response_api=true`; `allow_code_generation=true` |
+| `gpt-5.1-codex-mini` | Cost-efficient Codex variant | Streaming enabled, retains 400K context and code-generation flag |
+
+These entries include pricing-friendly aliases (`gpt5.1`, `codex-5.1`, `codex-mini`) plus updated capability flags (`supports_extended_thinking`, `allow_code_generation`). Copy the manifest if you operate custom deployment names so downstream providers inherit the same metadata.
+
 Because providers load the manifests on import, you can tweak capabilities without touching Python. Restart the server after editing the JSON files so changes are picked up.
 
 To control ordering in auto mode or the `listmodels` summary, adjust the
diff --git a/docs/getting-started.md b/docs/getting-started.md
index fa0af0b..9a487b2 100644
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -29,7 +29,7 @@ You need at least one API key. Choose based on your needs:
 
 **OpenAI:**
 - Visit [OpenAI Platform](https://platform.openai.com/api-keys)
-- Generate an API key for O3, GPT-5 access
+- Generate an API key for GPT-5.1, GPT-5.1-Codex, GPT-5, O3 access
 
 **X.AI (Grok):**
 - Visit [X.AI Console](https://console.x.ai/)
@@ -287,7 +287,7 @@ Add your API keys (at least one required):
 ```env
 # Choose your providers (at least one required)
 GEMINI_API_KEY=your-gemini-api-key-here      # For Gemini models  
-OPENAI_API_KEY=your-openai-api-key-here      # For O3, GPT-5
+OPENAI_API_KEY=your-openai-api-key-here      # For GPT-5.1, GPT-5.1-Codex, O3
 XAI_API_KEY=your-xai-api-key-here            # For Grok models
 OPENROUTER_API_KEY=your-openrouter-key       # For multiple models
 
@@ -498,7 +498,7 @@ DEFAULT_MODEL=auto
 GEMINI_API_KEY=your-key
 OPENAI_API_KEY=your-key
 GOOGLE_ALLOWED_MODELS=flash,pro
-OPENAI_ALLOWED_MODELS=o4-mini,o3-mini
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex-mini,gpt-5-mini,o4-mini
 ```
 
 ### Cost-Optimized Setup
@@ -514,7 +514,7 @@ DEFAULT_MODEL=auto
 GEMINI_API_KEY=your-key
 OPENAI_API_KEY=your-key
 GOOGLE_ALLOWED_MODELS=pro
-OPENAI_ALLOWED_MODELS=o3
+OPENAI_ALLOWED_MODELS=gpt-5.1-codex,gpt-5.1
 ```
 
 ### Local-First Setup
diff --git a/docs/model_ranking.md b/docs/model_ranking.md
index 64f32af..d843996 100644
--- a/docs/model_ranking.md
+++ b/docs/model_ranking.md
@@ -39,7 +39,7 @@ A straightforward rubric that mirrors typical provider tiers:
 
 | Intelligence | Guidance |
 |--------------|----------|
-| 18–19 | Frontier reasoning models (Gemini 2.5 Pro, GPT‑5) |
+| 18–19 | Frontier reasoning models (Gemini 2.5 Pro, GPT‑5.1 Codex, GPT‑5.1, GPT‑5) |
 | 15–17 | Strong general models with large context (O3 Pro, DeepSeek R1) |
 | 12–14 | Balanced assistants (Claude Opus/Sonnet, Mistral Large) |
 | 9–11  | Fast distillations (Gemini Flash, GPT-5 Mini, Mistral medium) |
diff --git a/docs/tools/analyze.md b/docs/tools/analyze.md
index 021df23..92e872d 100644
--- a/docs/tools/analyze.md
+++ b/docs/tools/analyze.md
@@ -64,7 +64,7 @@ This workflow ensures methodical analysis before expert insights, resulting in d
 
 **Initial Configuration (used in step 1):**
 - `prompt`: What to analyze or look for (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `analysis_type`: architecture|performance|security|quality|general (default: general)
 - `output_format`: summary|detailed|actionable (default: detailed)
 - `temperature`: Temperature for analysis (0-1, default 0.2)
diff --git a/docs/tools/chat.md b/docs/tools/chat.md
index b5da441..ed19e17 100644
--- a/docs/tools/chat.md
+++ b/docs/tools/chat.md
@@ -52,7 +52,7 @@ word verdict in the end.
 ## Tool Parameters
 
 - `prompt`: Your question or discussion topic (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `absolute_file_paths`: Optional absolute file or directory paths for additional context
 - `images`: Optional images for visual context (absolute paths)
 - `working_directory_absolute_path`: **Required** - Absolute path to an existing directory where generated code artifacts will be saved
diff --git a/docs/tools/codereview.md b/docs/tools/codereview.md
index fd2ccc2..b373a69 100644
--- a/docs/tools/codereview.md
+++ b/docs/tools/codereview.md
@@ -79,7 +79,7 @@ The above prompt will simultaneously run two separate `codereview` tools with tw
 
 **Initial Review Configuration (used in step 1):**
 - `prompt`: User's summary of what the code does, expected behavior, constraints, and review objectives (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `review_type`: full|security|performance|quick (default: full)
 - `focus_on`: Specific aspects to focus on (e.g., "security vulnerabilities", "performance bottlenecks")
 - `standards`: Coding standards to enforce (e.g., "PEP8", "ESLint", "Google Style Guide")
diff --git a/docs/tools/debug.md b/docs/tools/debug.md
index f8f035a..6e8a95a 100644
--- a/docs/tools/debug.md
+++ b/docs/tools/debug.md
@@ -72,7 +72,7 @@ This structured approach ensures Claude performs methodical groundwork before ex
 - `images`: Visual debugging materials (error screenshots, logs, etc.)
 
 **Model Selection:**
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `thinking_mode`: minimal|low|medium|high|max (default: medium, Gemini only)
 - `use_assistant_model`: Whether to use expert analysis phase (default: true, set to false to use Claude only)
 
diff --git a/docs/tools/precommit.md b/docs/tools/precommit.md
index cc403f5..ca9d7d2 100644
--- a/docs/tools/precommit.md
+++ b/docs/tools/precommit.md
@@ -140,7 +140,7 @@ Use zen and perform a thorough precommit ensuring there aren't any new regressio
 **Initial Configuration (used in step 1):**
 - `path`: Starting directory to search for repos (REQUIRED for step 1, must be absolute path)
 - `prompt`: The original user request description for the changes (required for context)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `compare_to`: Compare against a branch/tag instead of local changes (optional)
 - `severity_filter`: critical|high|medium|low|all (default: all)
 - `include_staged`: Include staged changes in the review (default: true)
diff --git a/docs/tools/refactor.md b/docs/tools/refactor.md
index cac8129..9e0e378 100644
--- a/docs/tools/refactor.md
+++ b/docs/tools/refactor.md
@@ -102,7 +102,7 @@ This results in Claude first performing its own expert analysis, encouraging it
 **Initial Configuration (used in step 1):**
 - `prompt`: Description of refactoring goals, context, and specific areas of focus (required)
 - `refactor_type`: codesmells|decompose|modernize|organization (default: codesmells)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `focus_areas`: Specific areas to focus on (e.g., 'performance', 'readability', 'maintainability', 'security')
 - `style_guide_examples`: Optional existing code files to use as style/pattern reference (absolute paths)
 - `thinking_mode`: minimal|low|medium|high|max (default: medium, Gemini only)
diff --git a/docs/tools/secaudit.md b/docs/tools/secaudit.md
index 8bace1f..7f4c3cb 100644
--- a/docs/tools/secaudit.md
+++ b/docs/tools/secaudit.md
@@ -85,7 +85,7 @@ security remediation plan using planner
 - `images`: Architecture diagrams, security documentation, or visual references
 
 **Initial Security Configuration (used in step 1):**
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `security_scope`: Application context, technology stack, and security boundary definition (required)
 - `threat_level`: low|medium|high|critical (default: medium) - determines assessment depth and urgency
 - `compliance_requirements`: List of compliance frameworks to assess against (e.g., ["PCI DSS", "SOC2"])
diff --git a/docs/tools/testgen.md b/docs/tools/testgen.md
index 83389a0..9df50cb 100644
--- a/docs/tools/testgen.md
+++ b/docs/tools/testgen.md
@@ -69,7 +69,7 @@ Test generation excels with extended reasoning models like Gemini Pro or O3, whi
 
 **Initial Configuration (used in step 1):**
 - `prompt`: Description of what to test, testing objectives, and specific scope/focus areas (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `test_examples`: Optional existing test files or directories to use as style/pattern reference (absolute paths)
 - `thinking_mode`: minimal|low|medium|high|max (default: medium, Gemini only)
 - `use_assistant_model`: Whether to use expert test generation phase (default: true, set to false to use Claude only)
diff --git a/docs/tools/thinkdeep.md b/docs/tools/thinkdeep.md
index 43c3c9a..9a5f2c4 100644
--- a/docs/tools/thinkdeep.md
+++ b/docs/tools/thinkdeep.md
@@ -30,7 +30,7 @@ with the best architecture for my project
 ## Tool Parameters
 
 - `prompt`: Your current thinking/analysis to extend and validate (required)
-- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5|gpt5-mini|gpt5-nano (default: server default)
+- `model`: auto|pro|flash|flash-2.0|flashlite|o3|o3-mini|o4-mini|gpt4.1|gpt5.1|gpt5.1-codex|gpt5.1-codex-mini|gpt5|gpt5-mini|gpt5-nano (default: server default)
 - `problem_context`: Additional context about the problem or goal
 - `focus_areas`: Specific aspects to focus on (architecture, performance, security, etc.)
 - `files`: Optional file paths or directories for additional context (absolute paths)