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LM Studio vs Sidenote

Bottom line

LM Studio is free, while Sidenote is paid. You can run LM Studio on your own machine or server; Sidenote is hosted by the vendor.

Which one should you try?

LM Studio

Free

Best for People who want a desktop app for downloading and chatting with local models

Visit LM Studio See full review

Sidenote

Paid

Best for Fortune 500 enterprises

Visit Sidenote See full review

Pricing, capabilities and platforms side by side. Prices are as of the "Pricing checked" date in the table.

LM Studio

LM Studio

LM Studio is a free desktop app for local models with a headless server (llmster), local APIs and SDKs. We ran llmster on a CPU-only server and measured install, load time and offline behavior.

Sidenote

Sidenote

SideNote deploys an OS-level agent across company devices, monitoring drafts across email, chat, and documents without browser extensions or per-app plugins. When language crosses a threshold — discriminatory screening language, a pasted API key, an antitrust-adjacent phrase — a coaching prompt appears immediately, explaining the problem and suggesting a compliant rewrite. Leadership gets anonymized, aggregated heat maps and trend data; no individual message content surfaces to the dashboard. The four baseline models cover employment law, culture safety, ethics, and data handling, with specialized regulatory add-ons for industries like healthcare, securities, and government contracting. The vendor states these specialized models were developed with Big Law domain experts.

AttributeLM StudioSidenote
PricingFreePaid
PriceFree to run models locally; optional cloud plans: Bionic+ $20/mo, Pro $100/mo—
Pricing checkedOct 16, 2026Not checked yet
Free trialNot statedNot stated
Open sourceNoNo
Has APIYesNo
Self-hosted optionYesNo
PlatformsmacOS (Intel and Apple Silicon), Windows, Linux (x64 and ARM64)—
Released2023-05—
Pros
  • A desktop app and a headless server (llmster), so you can chat with models or serve them to your apps.
  • Local APIs plus Python and TypeScript SDKs.
  • Works offline: with its update and extension hosts blocked, it still loaded and served the model.
  • Used 2 GB of memory with our 3B model, a little less than Ollama's 2.2 GB.
  • OS-level deployment covers every communication channel — email, chat, documents — without per-app plugins, so a credential accidentally pasted into a chat thread gets flagged the same way a drafted email does.
  • Real-time coaching at the drafting stage, not post-send monitoring, so the employee learns why a phrase is problematic before it enters the corporate record — reducing the exposure that shows up months later in discovery.
  • Anonymized, aggregated leadership dashboards surface organizational health trends and training gaps without exposing individual message content, so the platform gives legal and HR teams actionable intelligence without creating a surveillance optics problem.
  • Industry-specific regulatory models — HIPAA, FCPA, ITAR, securities, antitrust — layer on top of the baseline suite, so a financial services firm and a defense contractor can deploy the same platform with different compliance profiles without custom development.
  • Aggregated trend data — heat maps, training ROI metrics — gives leadership a way to identify which teams or managers need intervention before a complaint is filed, not after.
Cons
  • Slow cold load: lms load took 44.6 s, about 34 s of it before the engine started, with nothing in the logs to explain the wait.
  • Closed source and free under LM Studio's terms; only the lms CLI is open source (MIT).
  • Ollama generated text up to 1.38x faster on the same model and cores.
  • The anonymized dashboard architecture that protects employee privacy also means leadership cannot pull the specific flagged message when an incident requires it. When a compliance or legal team needs to reconstruct a conversation for a regulatory inquiry, SideNote's aggregated-only data model forces them to go to the source communication platform — at which point they are running two separate investigations.
  • OS-level agent deployment across a large enterprise requires IT coordination that browser-extension tools skip entirely. For organizations that cannot push agent installs to all endpoints — contractors, BYOD fleets, remote workers on unmanaged devices — coverage has structural gaps the product cannot close without device management infrastructure the vendor does not provide.
  • There is no self-hosted option and no free tier, which means organizations in highly restricted data environments — certain government agencies, defense contractors operating under data residency mandates — face a structural blocker before the compliance models are even relevant. Teams in those environments typically evaluate on-premise solutions where SideNote does not compete.

Made up your mind?

LM Studio

Free

Best for People who want a desktop app for downloading and chatting with local models

Visit LM Studio See full review

Sidenote

Paid

Best for Fortune 500 enterprises

Visit Sidenote See full review

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Specs come from each tool's own site and docs (how we test). AIDiveForge is editorially independent.

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