AI Chat Assistant Intelligent Developer Companion

Advanced AI assistant designed specifically for developers. Beautiful Markdown rendering with syntax-highlighted code blocks and one-click copy. Supports the OpenAI Responses API for the latest GPT models, DeepSeek reasoning with transparent chain-of-thought, and any custom OpenAI-compatible endpoint.

📋 Copy Code Snippets

🧠 Reasoning Models

⚡ Responses API

Download DevUtilities 👀 See Features

DevUtilities AI Chat Screenshot showing intelligent conversation interface with reasoning process

Advanced AI Assistant Features

Everything you need for intelligent development assistance and technical guidance.

✍️

Enhanced Markdown Rendering

Migrated to the Textual rendering engine for richer, more accurate Markdown output. Code blocks have syntax highlighting across all languages. Tables, nested lists, and inline formatting render correctly. Streaming updates are smooth with no layout flicker.

📋

One-Click Copy Code Snippets

Every code block in AI Chat responses shows a Copy button. Grab any snippet instantly — no text selection needed. Perfect for commands, configuration files, and code examples the AI generates for you.

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OpenAI Responses API

Full support for the OpenAI Responses API with SSE streaming. Compatible with GPT-5.2-pro and future models that require the new API. Reasoning/thinking output streams in real-time. Enable per-model via "Use Responses API" in model settings.

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DeepSeek Reasoning Models

Access deepseek-chat and deepseek-reasoner models with transparent "deepthink" Chain of Thought reasoning. The AI's internal problem-solving process streams in a collapsible section before the final answer.

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Collapsible Thinking Process

View AI reasoning in expandable/collapsible sections with a brain icon. Works for both DeepSeek reasoning models and OpenAI Responses API models that support thinking output.

🤖

Custom Model Support

Configure any OpenAI-compatible model with custom API endpoints, headers, and authentication. Add GPT-5, Claude, DeepSeek, or your own self-hosted model. Built-in model list auto-syncs on startup.

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Persistent Conversations

Multiple chat sessions with independent model selection and conversation history. Context carries across sessions for ongoing development projects.

🎨

Image Generation

Generate images and diagrams via the OpenAI Responses API. Multi-turn image refinement using conversation context for iterative visual content creation.

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Web Search

Real-time web search lets the AI access the latest documentation, current best practices, and up-to-date technical resources for accurate answers.

How to Use AI Chat Assistant

Get intelligent development assistance in just a few simple steps.

Choose Your Model

Select from built-in models or configure custom AI models with your preferred API settings, endpoints, and authentication methods.

Ask Your Question

Type your development question, paste code for review, or describe the technical problem you're trying to solve.

Copy Code Instantly

Click the Copy button on any code block to grab the snippet directly — no text selection needed. Use it in your editor immediately.

Apply Solutions

Use the AI's recommendations, code suggestions, and technical guidance. Expand the reasoning section to see how the AI arrived at its answer.

Perfect for These Development Tasks

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Code Review & Analysis

Get AI-powered code reviews, identify potential bugs, suggest improvements, and ensure best practices in your codebase.

🐛

Debugging Assistance

Describe error messages and unexpected behavior to get targeted debugging suggestions and step-by-step troubleshooting guidance.

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Architecture Decisions

Discuss technical architecture, design patterns, technology choices, and system design decisions with expert AI guidance.

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Learning & Explanations

Get detailed explanations of complex concepts, understand new technologies, and accelerate learning with AI-powered technical education.

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Performance Optimization

Analyze code performance, identify bottlenecks, and get specific suggestions for optimizing application speed and resource usage.

🔐

Security Best Practices

Review code for security vulnerabilities, get guidance on secure coding practices, and implement robust security measures.

🌐

Research & Documentation

Access latest documentation, search for current best practices, and generate visual diagrams for technical documentation with web search and image generation.

🛠️

Tool-Enhanced Development

Leverage integrated tools for code analysis, file processing, and workflow automation to streamline development tasks with AI assistance.

Frequently Asked Questions

What's new in v2.12.0?

Three major AI Chat improvements: (1) Markdown rendering migrated to Textual with better code highlighting and no streaming flicker; (2) one-click Copy button on every code block; (3) OpenAI Responses API support for GPT-5.2-pro and compatible models with reasoning output.

How does copy code work?

Every code block in chat responses displays a Copy button in the top-right corner. Click it to copy the entire code snippet to your clipboard instantly — no need to select text manually.

What is the OpenAI Responses API?

The Responses API is OpenAI's newer API that supports models like GPT-5.2-pro and enables features like reasoning output. Enable it per-model via the "Use Responses API" toggle when adding or editing a model in Settings → AI.

What AI models are supported?

Built-in models include GPT-5, DeepSeek chat and reasoner, and GPT-5.2-pro (via Responses API). You can also add any OpenAI-compatible model with a custom endpoint and API key.

How does the DeepSeek reasoning process work?

DeepSeek reasoner models stream their internal "deepthink" chain-of-thought in a collapsible section before the final answer — so you can see exactly how the AI approaches your problem.

Is conversation history saved?

Yes. DevUtilities maintains multiple persistent chat sessions, each with its own model selection and conversation history. Continue any discussion across app launches.

How do I stop a streaming response?

Click the stop button to cancel immediately. The partial response is preserved — not discarded — so you keep whatever the AI had already generated.

Can I add my own AI model?

Yes. Go to Settings → AI → Models → Add Model. Enter your API endpoint, key, and model name. Any OpenAI-compatible API works, including self-hosted models.