# LocalAI v4.5.1 — Release & Upgrade Intelligence
- **Product:** LocalAI (https://localai.io)
- **Version:** v4.5.1
- **Released:** Jun 26, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/localai/updates/v4.5.1/

## Executive Summary (TL;DR)
LocalAI v4.5.1. Source highlight: chore(model gallery): :robot: add 1 new models via gallery agent

## New Features
- chore(model gallery): :robot: add 1 new models via gallery agent
- feat(backends): add darwin/metal build for liquid-audio
- feat(ui): usage & UX enhancements (last-used model, polling, starter models, usage cost, a11y)
- feat(ui): data-driven hardware model recommendations + gallery surfacing
- feat(backends): add darwin/metal (MPS) build for trl
- feat(llama-cpp): cpu_moe/n_cpu_moe options + generic upstream-flag passthrough

## Bug Fixes
- fix(agents): URL-decode collection/agent name path params (#10443)
- fix(distributed): track in-flight for SoundDetection requests
- fix(pii): load default detectors at startup + add LOCALAI_PII_DEFAULT_DETECTORS
- fix(realtime): resolve model aliases for pipeline sub-models
- fix(backends): darwin/metal support for supertonic
- fix(config): per-device VRAM headroom for Blackwell defaults (#10485)