Blab Tech
MIDI Agent Plugin Updates to Version 1.2.4, Adding Claude Fable 5 Support and New Workflow Features
On June 15, 2026, MIDI Agent— the AI‑powered MIDI generation tool that plugs into popular digital audio workstations— rolled out its latest release, version 1.2.4. The update brings Anthropic’s Claude Fable 5 model into the mix, a polished user interface, and a suite of workflow tweaks that make working with custom providers and local models smoother than ever.
MIDI Agent is available on Windows and macOS as VST3, Audio Units (AU), and AAX plugins. Its core promise is simple: let musicians generate melodies, chords, drums, and basslines from plain‑English prompts, convert audio tracks into editable MIDI, and finish unfinished sequences with a single click. Behind the scenes the plugin can tap into a roster of generative models—including ChatGPT, Claude, Gemini, DeepSeek, and Grok—giving creators a broad palette of styles and capabilities.
Pricing remains unchanged. A one‑time license costs $99 USD, but a limited‑time promotion has lowered the price to $49 USD for new buyers. For those who rely on frequent generation, the optional MIDI Agent Pro subscription offers managed API access to the supported models and a monthly quota of 500 AI generations for $20 USD. Users who prefer to keep their own keys can still point the plugin at any provider, such as OpenAI or Anthropic, without buying the Pro tier.
The heart of 1.2.4 lies in the user experience for local‑model and custom‑provider workflows. The new graphical user interface streamlines prompt entry, highlights model‑specific settings, and reduces the clutter that often plagues AI‑heavy plugins. Custom provider and model workflow tweaks let users choose which model to invoke for each request directly inside the DAW, eliminating the need to leave the session to switch settings. Additionally, chat persistence has been introduced for custom providers and local models, allowing the plugin to maintain context across multiple prompts within a single session.
Claude Fable 5, Anthropic’s latest Mythos‑class model, is a key addition. Known for its expansive context window and sophisticated reasoning, Fable 5 can handle up to one million tokens. This capacity opens the door to longer, more intricate musical ideas that were previously beyond reach. MIDI Agent’s documentation notes that the model’s large context is especially useful for generating extended compositions or complex arrangements.
The update fits into a broader movement of embedding generative AI into music production. Ableton Live, Logic Pro, Pro Tools, and other DAWs already support a wide array of VST and AU plugins, but MIDI Agent’s ability to generate and edit MIDI directly within the host streamlines the creative process for composers and producers alike.
At the moment, the plugin’s website lists the new features and provides download links for the installer. No further releases or feature roadmaps have been announced beyond version 1.2.4. Users eager to experiment with Claude Fable 5 will need to secure an Anthropic API key or subscribe to MIDI Agent Pro. All other pricing and subscription terms remain unchanged.
In short, MIDI Agent’s 1.2.4 release delivers a refreshed interface, expanded model support, and tighter workflow integration for custom providers, all while preserving its core AI‑driven MIDI generation and transcription capabilities within popular DAWs.
MIDI Agent is available on Windows and macOS as VST3, Audio Units (AU), and AAX plugins. Its core promise is simple: let musicians generate melodies, chords, drums, and basslines from plain‑English prompts, convert audio tracks into editable MIDI, and finish unfinished sequences with a single click. Behind the scenes the plugin can tap into a roster of generative models—including ChatGPT, Claude, Gemini, DeepSeek, and Grok—giving creators a broad palette of styles and capabilities.
Pricing remains unchanged. A one‑time license costs $99 USD, but a limited‑time promotion has lowered the price to $49 USD for new buyers. For those who rely on frequent generation, the optional MIDI Agent Pro subscription offers managed API access to the supported models and a monthly quota of 500 AI generations for $20 USD. Users who prefer to keep their own keys can still point the plugin at any provider, such as OpenAI or Anthropic, without buying the Pro tier.
The heart of 1.2.4 lies in the user experience for local‑model and custom‑provider workflows. The new graphical user interface streamlines prompt entry, highlights model‑specific settings, and reduces the clutter that often plagues AI‑heavy plugins. Custom provider and model workflow tweaks let users choose which model to invoke for each request directly inside the DAW, eliminating the need to leave the session to switch settings. Additionally, chat persistence has been introduced for custom providers and local models, allowing the plugin to maintain context across multiple prompts within a single session.
Claude Fable 5, Anthropic’s latest Mythos‑class model, is a key addition. Known for its expansive context window and sophisticated reasoning, Fable 5 can handle up to one million tokens. This capacity opens the door to longer, more intricate musical ideas that were previously beyond reach. MIDI Agent’s documentation notes that the model’s large context is especially useful for generating extended compositions or complex arrangements.
The update fits into a broader movement of embedding generative AI into music production. Ableton Live, Logic Pro, Pro Tools, and other DAWs already support a wide array of VST and AU plugins, but MIDI Agent’s ability to generate and edit MIDI directly within the host streamlines the creative process for composers and producers alike.
At the moment, the plugin’s website lists the new features and provides download links for the installer. No further releases or feature roadmaps have been announced beyond version 1.2.4. Users eager to experiment with Claude Fable 5 will need to secure an Anthropic API key or subscribe to MIDI Agent Pro. All other pricing and subscription terms remain unchanged.
In short, MIDI Agent’s 1.2.4 release delivers a refreshed interface, expanded model support, and tighter workflow integration for custom providers, all while preserving its core AI‑driven MIDI generation and transcription capabilities within popular DAWs.
