Mycel vs Relay: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Mycel and Relay — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Mycel
Mycel
Mycel learns a service firm's work from one past deliverable, then drafts every future one for owner approval before it ships.
Key features
- One-Deliverable Onboarding: Upload a single past piece of client work and Mycel infers your firm's format, tone, and structure, so it can draft the next one without a lengthy template build.
- Approval-Gated Output: Every draft waits for your sign-off before it ships, keeping the human as the last pair of eyes while removing the blank-page work.
- Correction Memory: A correction you make once is carried into later drafts, so repeated edits stop recurring month after month.
- White-Labelled Client Portal: Clients get their own sign-in on your brand, with credentials kept separate per business rather than shared under Mycel's name.
- Recurring Desks: Prebuilt loops for accounts receivable chasing, monthly close packs, pipeline outreach, recruiting longlists, and contract redlines run on a schedule.
- Rendered Deliverables: Output is inspected as the real artifact — an actual spreadsheet or document with the exact figures the client receives — not a filename in a queue.
- Job-Based Metering: Volume is counted in jobs (one message answered, sync run, or document produced) with model costs included and no overage charge.
- Apache-2.0 Self-Hosting: The same code can be run on your own servers with your own model key, free and unmetered, for teams that cannot use a hosted service.
Best for
- Agency Deliverable Drafting: A consultancy or SEO agency uploads a past client report so Mycel drafts the monthly version for every account, leaving only review.
- Bookkeeping Month-End Close: Finance-service firms run the close loop and receive a client-ready pack without an owner rebuilding it each cycle.
- Accounts Receivable Chasing: Late invoices are followed up automatically so the principal stops asking clients for money twice.
- Recruiting Longlists: Per-search candidate longlists are screened in writing and returned ready for a recruiter to shortlist.
- Contract Redlining: Incoming contracts come back marked up and ready for signature rather than waiting for a free afternoon.
- Owner Capacity Relief: A founder who is the bottleneck on every draft keeps final judgment but stops being the person who writes the first version.
- Private-Cloud Deployment: Teams with security or procurement constraints self-host the Apache-2.0 runtime inside their own infrastructure.
R
Relay
Relay
AI phone receptionist that builds itself from a business's website to answer every call and book, reschedule, or cancel appointments 24/7.
Key features
- One-Click Build: Paste a website and Relay drafts the agent profile, knowledge base, prompt, and call wiring in about 38 seconds.
- 24/7 Call Answering: Picks up every call day or night in the caller's local time, with no voicemail or hold music.
- Real Calendar Booking: Checks live availability and writes appointments, reschedules, and cancellations directly to the business's existing booking system.
- Booking Integrations: Connects to 7+ systems including Google Calendar, Square, Calendly, Outlook, Housecall Pro, Workiz, and Vagaro with one sign-in.
- Grounded Answers: Answers caller questions from the business's own facts and knowledge base rather than guessing.
- No-Config Setup: Requires no dashboards, prompt engineering, or manual call-flow building.
Best for
- Missed-Call Recovery: Capture bookings from calls that would otherwise ring out when staff are busy or closed.
- Appointment-Based Businesses: Let salons, clinics, and home-service providers automate booking, rescheduling, and cancellations by phone.
- After-Hours Coverage: Answer and book calls 24/7 without hiring overnight reception staff.
- Fast Agent Deployment: Stand up a working phone agent from a website link without engineering time.
- FAQ Handling: Answer common caller questions about hours, services, and pricing from the business's own information.
