llms.py v4 is here! | llmspy.org

We're thrilled to announce llms.py v4 - our biggest release yet! This milestone version brings together everything we've been building: publish and share your chat threads, projects, images and audio to the new ai.llmspy.org showcase, configurable Agent Profiles for specialized workflows, provider-hosted Server Tools, and a huge wave of new Audio, Speech, and Image generation models. Upgrade now to unlock it all.

Easiest way to install llms.py is using pip:

Get the latest features by updating to the latest version:

After upgrading, it's recommended to also upgrade any external extensions:

To reset your configuration to the latest llms.json and providers-extra.json run:

PDF Studio

The new PDF Studio extension brings code-first document design to llms.py. Design PDFs the way you write code: a plain-text Typst template on the left, the rendered page on the right, updating in real-time as you type or edit data.

The PDF Studio is a built-in extension that is automatically enabled whenever the Typst CLI compiler is available on your system PATH:

# Cargo (Rust)
cargo install --locked typst-cli

# macOS (Homebrew)
brew install typst

Real-Time Live Preview & Schema-Driven Form UI

Documents like invoices, certificates, and statements separate layout (.typ template) from content (.json data). Edit document data using raw JSON in Code View or an interactive, auto-generated Form View-re-rendering the compiled PDF instantly on every keystroke.

AI-Powered Editing & Vision Input

Describe document layout and styling changes in plain English using the Edit with AI panel. Attach a screenshot or sample PDF to let vision models automatically decouple design from data-building a reusable Typst template and JSON data model for you, complete with auto-healing compiler error passes.

Visual Formatting Toolbar & Design Systems

Rich visual pickers make styling intuitive without memorizing markup:

• Typography & Font Picker: System & custom font previewing, sizing, line-height, and weight adjustments.
• Page Setup: Interactive paper sizing (A3–A6, Letter, Legal, Slides), margins, and orientation.
• Shared Library (lib.typ): Maintain a central house style with lib.preview.typ live design system verification.

Typed Application Code Generation

Turn your document's JSON schema into strongly typed C#, Python, TypeScript, or JavaScript classes with a single click-ensuring your backend application produces JSON matching your template's expected structure.

Check out the full PDF Studio Documentation for the complete walkthrough.

The new Publishing extension lets you share your AI creations with the world - straight from your workspace. Generate public, read-only links for chat threads, static projects, and individual media files, all hosted on ai.llmspy.org/m and available instantly.

Click the Share icon in the toolbar to open the publishing panel. Connecting a publisher account is completely free and anonymous - no email or personal details required - and you can disconnect at any time.

Everything you publish is hosted on the new ai.llmspy.org website - a public showcase where you can browse and discover the best AI-generated content shared by the community. Switch between the Images, Audio, and Projects galleries to explore what's been created:

Publish an entire conversation - including code blocks, tables, and rich markdown formatting - as a permanent, styled web page. Choose from 8 beautiful themes to give your shared threads a distinctive look, from the cool arctic tones of Nord to the neon-green glow of Matrix.

Deploy a static project - a game, web app, or any folder of HTML/JS/CSS - to a live public URL with a single click. The extension auto-detects your project's build folder, packages it, and returns a shareable link.

Share AI-generated images directly from the media gallery lightbox and generated audio clips from the audio player - both uploaded with their metadata and served on their own public page.

See the Publishing docs for the full walkthrough.

Streaming is now implemented across all providers, so responses render token-by-token in real time in the Chat UI instead of waiting for the full completion to arrive - giving immediate feedback for every model, including providers that previously only supported non-streamed responses.

Streaming works the same way across every provider - Anthropic, OpenAI, Google, OpenRouter, Groq, Mistral, Cerebras, xAI, Fireworks, Ollama, LM Studio and all other OpenAI-compatible providers - so you get consistent real-time output no matter which model or provider you choose.

Profile Manager

The new Profile Manager provides a full UI for viewing, overriding, and creating Agent Profiles - no manual file editing required. Access it from the Manage Profiles option at the bottom of the Agent Profile Selector dropdown.

Built-in profiles (Chat, Coder, Planner) are displayed as Read-only with their server-defined defaults visible. You can override the default model and theme for any built-in profile through the Settings tab - overrides are stored as user preferences and take effect immediately without modifying the original profile files.

Create entirely new custom profiles with the + button - each with its own name, avatar, default model, theme, tool/skill restrictions, and system prompt files. Custom profiles support inline editing of SYSTEM.md, SYSTEM.template, and all template variable files, plus the ability to add and delete prompt files directly from the UI.

See the Profile Manager docs for the full walkthrough.

Audio & Speech Models via OpenRouter

llms.py now supports Audio and Speech generation models available through OpenRouter, bringing music generation, audio synthesis, and text-to-speech capabilities to the model selector alongside chat and image models.

Use the Audio (🔊) and Speech (👤) output filters in the model selector to browse all available models.

Audio Models

Google's Lyria 3 is DeepMind's latest music generation model - both the Clip and Pro previews are available currently free on OpenRouter.

Speech (Text-to-Speech) Models

To pick up the latest Audio and Speech models, reset your providers configuration:

Image Generation Improvements

• Refactor OpenRouter provider to use Image Generation API for OpenRouter image models instead of the Chat Completion API, which is future proof and improves image generation performance and reliability.

• Add support for latest Chutes Image Models:

• Z Image Turbo

• Qwen-Image & Qwen-Image Edit

• Flux, Dreamshaper, Juggernaut & Ilustmix

Server Tools

The new Server Tools feature adds built-in support for provider-hosted tools, including both OpenRouter Server Tools and Anthropic's Server Tools. This lets you enable provider-hosted capabilities like web search, web fetch, and code execution directly from the chat UI without any client-side setup.

Each tool is defined in standard JSON Schema which the frontend uses to dynamically generate the configuration UI and the tool definition presented to the model.

Open the Tools panel from the toolbar, switch to the SERVER TOOLS tab to see the tools available for the selected model's provider:

See the Server Tools docs for more details.

Agent Profiles

The new Agent Profiles feature lets you configure specialized AI agents, each with its own system prompt, default model, UI theme, restricted tool/skill set, custom avatar, and footer action buttons.

Switch between agents from the Agent Profile Selector dropdown in the chat header. Built-in profiles include Chat (general-purpose), Planner (multi-step reasoning and task decomposition), and Coder (reads and writes code to disk).

Planner → Coder Workflow

A powerful two-phase workflow: use the Planner to break a goal into a structured architecture plan, then hand off to the Coder via footer action buttons (Save to PLAN.md, Execute Plan, Execute PLAN.md) to implement it step by step.

Here's the workflow in action - the Planner was given the prompt "Build a Sci-Fi GALAGA game", produced a full architecture plan saved to PLAN.md, and the Coder implemented the complete game:

Custom Personal Assistant

The assistant example profile shows how to build a fully personalized AI companion using a SYSTEM.template that composes separate markdown files for identity, user context, values, and tools - with a custom avatar:

See the Agent Profiles docs for the full configuration reference including custom avatars, onlyTools/onlySkills restrictions, conditional footer actions, and composite system prompt templates.

Projects

The new Projects feature provides a secure workspace sandboxing system. Each project defines one or more allowed directories - all AI agent filesystem tools (read, write, edit, search, list) are restricted exclusively to those paths.

Projects support path aliases ($WORKSPACE for the server's working directory, $TEMP for the system temp dir) alongside any custom absolute paths. Non-existent directories are automatically created on save.

Switch between projects from the Workspaces & Projects dropdown in the top-left header, or reset to Default Workspace to remove sandbox restrictions. Projects are persisted per-user at ~/.llms/user/{username}/projects/projects.json.

See the Projects docs for more details.

Checkout the latest models inc. Grok 4.3, GPT-5.5, GPT Image 2, Opus 4.7, Sonnet 4.6, Gemini 3.1, Gemma 4, DeepSeek v4, Kimi K2.6, GLM 5.1, MiMo V2.5 and more...

Recraft Image Generation Models

New Recraft image generation models from are now available from Open Router:

You can now make use of your existing Claude Code Subscription by changing the Anthropic provider npm configuration in your llms.json to use @ai-sdk/anthropic-cli instead of @ai-sdk/anthropic, e.g:

{
    "anthropic": {
        "enabled": true,
        "npm": "@ai-sdk/anthropic-cli",
        ...
    }
}

This provider routes all requests to the claude binary so it's functionality and integration is limited, e.g. it doesn't support tool calling or skills. Otherwise it supports other features you'd expect like System Prompts, Chat History, Image and Document attachments, etc.

At the same time it's able to benefit from some smarts in the claude binary it's built-in system prompts and optimizations for handling long conversations, so it can be a good option for some use cases.

Support for Fireworks Large Language Models

Added support for Fireworks AI as a new provider, a fast inference platform hosting the leading open-source models including GLM 5, Kimi K2.5, MiniMax M2.5 and DeepSeek V3.2 at a market-leading 200 tok/s.

All text models support reasoning and tool use, making Fireworks an excellent choice for agentic workflows where speed matters. Here's Kimi K2.5 via Fireworks creating a retro Tetris game with full tool calling support:

Fireworks Image Generation Models

Fireworks also hosts Black Forest Labs' FLUX.1 image generation models with fast inference and competitive per-image pricing:

This can be found in the model selector by selecting the Image output filter:

Here are examples to demonstrate the quality of each of the FLUX.1 models:

To get started, set your Fireworks API key:

export FIREWORKS_API_KEY=your_api_key_here

Then reset your providers configuration to pick up the new Fireworks models in providers-extra.json:

Credentials Auth Provider

The built-in credentials extension enables Username/Password authentication for your Application, including a Sign In page, user registration, role assignment, and account locking. It provides full user management through both the CLI and a web-based Admin UI, along with account self-service for all authenticated users.

Credentials is the default Auth Provider that's automatically enabled when at least one user has been created:

llms --adduser admin

After logging in as admin, you can create additional users from the Manage Users page which can be accessed from the user menu.

See the Credentials Auth docs for more details.

Nano Banana 2

Added Google's latest Gemini Nano Banana 2 model, available from both the Google and OpenRouter providers. The Google/Gemini provider supports multiple chat history in conversations, while OpenRouter sends a fresh chat request for each message.

You can find it in the model selector by selecting Image output filter and searching for "Nano Banana 2".

To get the latest model info with Nano Banana 2, reset your providers configuration:

Optimized Gallery Thumbnails

Gallery pages now use optimized thumbnails instead of full-size images. Detail images that increasingly approach over 2MB are now served as thumbnails under 10KB, delivering a noticeable performance improvement when scrolling through the infinite scrolling gallery pages.

Reset to latest configuration

New versions sometimes include changes to llms.json config which isn't automatically updated.

Use the --reset option to reset the default configuration files back to its factory defaults. Available reset options (config, providers, all):

config - Reset ~/.llms/llms.json to default

llms --reset config

providers - Reset ~/.llms/providers.json and ~/.llms/providers-extra.json

llms --reset providers

New Theme Support

llms.py now ships with 8 built-in themes - 🎨 4 dark and 🎨 4 light - so you can personalize the Web UI to match your style. Switch themes instantly from the home page or Settings or create your own custom themes with full control over colors, typography, and background assets.

See the Themes docs for details on the available themes and how to create your own.

Agent Browser Editor

The browser extension provides an integrated environment for creating, editing, and running automated browser scripts powered by Vercel's agent-browser.

• 🖥️ Live Browser Preview - Clickable real-time screenshot with full mouse, keyboard, and scroll interaction
• 📋 Element Inspector - Auto-refreshing snapshot giving scripts and AI a precise map of interactive elements
• ✍️ AI Script Generation - Describe what you want in English and the AI generates the full automation script
• 🤖 AI-Assisted Editing - Select lines in the editor and describe changes to iterate on scripts incrementally
• ▶️ Run Selected Text - Run highlighted portions of a script to test individual steps in isolation
• 💾 Saved Scripts Library - Build a library of reusable browser automations accessible from the sidebar

See browser docs for more details.

Standard Input

llms now accepts OpenAI-compatible Chat Completion requests via standard input, making it easy to integrate into shell pipelines and scripts.

When JSON is piped in, llms detects it automatically - no extra flags needed:

cat request.json | llms

Build requests inline with a heredoc:

llms <<EOF
{
  "model": "Minimax M2.5",
  "messages": [
    { "role": "user", "content": "Capital of France?" }
  ]
}
EOF

Combine with other CLI tools to generate requests dynamically:

echo '{"messages":[{"role":"user","content":"Summarize:'"$(cat notes.txt)"'"}]}' | llms

This pairs well with structured outputs support and jq to build end-to-end JSON pipelines:

(llms <<EOF
{
    "model": "moonshotai/kimi-k2-instruct",
    "messages": [{"role":"user", "content":"Return capital cities for: France, Italy, Spain, Japan." }],
    "response_format": {
        "type": "json_schema",
        "json_schema": {
            "name": "country_capitals",
            "schema": {
                "type": "object",
                "properties": {
                    "capitals": {
                        "type": "array",
                        "items": {
                            "type": "object",
                            "properties": {
                                "country": { "type": "string" },
                                "capital": { "type": "string" }
                            },
                            "required": ["country","capital"]
                        }
                    }
                },
                "required": ["capitals"]
            }
        }
    }
}
EOF
) | jq -r '.capitals[] | "\(.country): \(.capital)"'

Output:

France: Paris
Italy: Rome
Spain: Madrid
Japan: Tokyo

Persistence Options

By default, all chat completions are saved to the database, including both the chat thread (conversation history) and the individual API request logs. Use these options to control what gets saved to the database:

--nohistory

Skip saving the chat thread (conversation history) to the database. The individual API request log is still recorded.

llms "What is the capital of France?" --nohistory

--nostore

Do not save anything to the database - no request log and no chat thread history. Implies --nohistory.

llms "What is the capital of France?" --nostore

Custom User and Agent Avatars

Personalize your chat experience with custom avatars for both yourself and AI agents. Upload images via the Settings page or manually add them to ~/.llms/users/ - supports .png, .svg, and auto-converts from other formats.

Compact Tool Calls with Smart Summarization

The new Compact Tool Calls feature automatically summarizes long tool arguments and outputs in the Chat UI to keep conversations concise while still providing access to important information as needed.

Previously, even with long Tool Call Arguments minimized, you could still only see a few on a page. Now that they're collapsed by default, you can see more at a glance and expand only the ones you need.

Support for Voice Input

Added Voice Input extension with speech-to-text transcription via a microphone button or ALT+D shortcut, supporting three modes: local transcription with voxtype, custom transcribe executable, and cloud-based voxtral-mini-latest via Mistral.

• Added tok/s metrics in Chat UI on a per-message and per-thread basis

Voxtral Audio Models

Added support for Mistral's Voxtral audio transcription models - use the audio input filter in the model selector to find them.

Both the Chat Completion and dedicated Audio Transcription APIs deliver impressive speed, with the dedicated transcription endpoint returning results near-instantly.

Compact Threads

Added Compact Threads feature for managing long conversations - it summarizes the current thread into a new, condensed thread targeting 30% of the original context size. The compact button appears when a conversation exceeds 10 messages or uses more than 40% of the model's context limit.

The compaction model and prompts are fully customizable in ~/.llms/llms.json.

• Fix OpenRouter provider after models.dev switched to use @openrouter/ai-sdk-provider. Remove llms.json to reset to default configuration:

• Removed duplicate filesystem tools from Core Tools, they're now only included in File System Tools

• Add sort_by and max_result options in search_files and made path and optional parameter to improve utility and reduce tool use error rates. path now defaults to the first allowed directory (project dir).

• Add support for overridable ClientTimeout limits in ~/.llms/llms.json:

{
    "limits": {
        "client_timeout": 120
    }
}

• Show proceed button for assistant messages without content but with reasoning

Multi User Skills

When Auth is enabled, each user manages their own skill collection at ~/.llms/user/<user>/skills and can enable or disable skills independently. Shared global & project-level skills remain accessible but read-only.

• Refactor GitHub Auth out into a builtin github_auth extension

• Support for tool calling for models returned by local Ollama instances

• New openai-local provider for custom OpenAI-compatible endpoints

• Fix computer tool issues in Docker by only loading computer tool if run in environment with a display

Skills Management

Added a full Skills Management UI for creating, editing, and deleting skills directly from the browser.

Skills package domain-specific instructions, scripts, references & assets that enhance your AI agent.

Browse & Install Skills

Added a Skill Browser with access to the top 5,000 community skills from skills.sh. Search, browse, and install pre-built skills directly into your personal collection.

• Use a barebones fallback markdown render when markdown renders like KaTex fail

• Use sanitizeHtml to avoid breaking layout when displaying rendered html

• Add copy button to TextViewer popover menu

• Add proceed and retry buttons at the bottom of Threads to continue agent loop

• Add filesystem tools in computer extension

• Add a simple sendUserMessage API in UI to simulate a new user message on the thread

• Implement TextViewer component for displaying Tool Args, Tool Output + SystemPrompt

• Auto collapse long tool args content and add ability to min/maximize text content

• Add built-in computer_use extension

See v3 release notes for details on the major new features and improvements in v3.