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Mentor126 vs Second Nature

Second Nature is an enterprise AI roleplay platform: avatars, many call formats and every integration a large company asks for. Mentor126 builds the whole sales course from your material, with graded voice roleplay inside it, at prices you can see.

Both tools turn your own material into AI roleplays, grade them against your methodology and track who is certified. Second Nature goes further on the roleplay itself and on enterprise requirements. Mentor126 goes further on the training around the roleplay: it writes the lessons and quizzes too, and it is priced and sized for teams of 10 to a few hundred reps.

Checked against Second Nature's own site and public reviews on October 26, 2026. Sources are listed at the end.

	Second Nature	Mentor126
What it is	“AI Role Plays and Coaching that Turn Training into Go-To-Market Execution.” Enterprise-first, for sales, enablement, L&D, customer support and call centers.	AI sales training and onboarding for sales teams: courses from your material, graded voice roleplay, and a view of who's ready.
Training content	Upload PDFs, decks, Word files or recordings and the AI generates the roleplay: persona, scenario and criteria. Courses combine your videos, decks and quizzes with practice, and a multi-course creator sequences roleplay programs.	The AI writes the whole course from your material in 13 formats: readings, podcasts, flashcards, quizzes, confidence quizzes, branching scenarios, case studies, slides and voice roleplay. It flags conflicts between your sources and facts it couldn't find in them.
Roleplay	Voice with static or video avatars, multi-persona meetings, chat, webcam pitch recording, slide presentations with AI questions and screen-share demos. Templates for MEDDPICC, BANT and SPIN, plus a no-score practice mode.	One-on-one voice calls with a buyer built from your material, on desktop or phone. The buyer gets tougher as the rep improves; the grading doesn't get easier.
Scoring	70% knowledge and 30% style by default (pace, clarity, energy, filler words), weighted topics, an editable pass mark, manager scorecards and rep score reviews.	A rubric written from your material, scored criterion by criterion with the rep's own words quoted. Must-pass points fail the call if missed. Pass mark 70%.
Manager view	Team dashboards, completion rates, proficiency heatmaps, rep and team comparisons, a reporting API.	Completion by job role, who needs help and why, per-course results with the weakest questions and criteria. On Team and Enterprise, ask questions about your team in plain English.
Pricing and setup	Contact sales. Its own note on G2: “Minimum average deal starts at 20K USD.” G2 lists implementation at about 2 months. Free trial, no free plan.	Published: Starter $35 and Team $55 per seat per month, 15-day free trial for up to 25 users, no card. Enterprise by quote. A first course typically builds in about 15 minutes, and teams with 10+ reps get it free.

Second Nature

Mentor126

What it is

“AI Role Plays and Coaching that Turn Training into Go-To-Market Execution.” Enterprise-first, for sales, enablement, L&D, customer support and call centers.

AI sales training and onboarding for sales teams: courses from your material, graded voice roleplay, and a view of who's ready.

Training content

Upload PDFs, decks, Word files or recordings and the AI generates the roleplay: persona, scenario and criteria. Courses combine your videos, decks and quizzes with practice, and a multi-course creator sequences roleplay programs.

The AI writes the whole course from your material in 13 formats: readings, podcasts, flashcards, quizzes, confidence quizzes, branching scenarios, case studies, slides and voice roleplay. It flags conflicts between your sources and facts it couldn't find in them.

Roleplay

Voice with static or video avatars, multi-persona meetings, chat, webcam pitch recording, slide presentations with AI questions and screen-share demos. Templates for MEDDPICC, BANT and SPIN, plus a no-score practice mode.

One-on-one voice calls with a buyer built from your material, on desktop or phone. The buyer gets tougher as the rep improves; the grading doesn't get easier.

Scoring

70% knowledge and 30% style by default (pace, clarity, energy, filler words), weighted topics, an editable pass mark, manager scorecards and rep score reviews.

A rubric written from your material, scored criterion by criterion with the rep's own words quoted. Must-pass points fail the call if missed. Pass mark 70%.

Manager view

Team dashboards, completion rates, proficiency heatmaps, rep and team comparisons, a reporting API.

Completion by job role, who needs help and why, per-course results with the weakest questions and criteria. On Team and Enterprise, ask questions about your team in plain English.

Pricing and setup

Contact sales. Its own note on G2: “Minimum average deal starts at 20K USD.” G2 lists implementation at about 2 months. Free trial, no free plan.

Published: Starter $35 and Team $55 per seat per month, 15-day free trial for up to 25 users, no card. Enterprise by quote. A first course typically builds in about 15 minutes, and teams with 10+ reps get it free.

Where Mentor126 is different

It writes the course, not only the roleplay.
Mentor126 turns your decks, docs and call recordings into readings, podcasts, quizzes and scenarios as well as practice calls, so reps learn the product before they're asked to sell it. You don't need a library of existing training to start.
Sized for teams of 10 to a few hundred.
Published per-seat prices, a 15-day trial for up to 25 users, and a first course in about 15 minutes. No minimum contract to find out if it fits.
Graded on your material.
Every criterion is written from your sources and comes back with the rep's own words as evidence. Lessons a rep has already proven are skipped, and reopen if a later assessment shows a gap.

A scored practice call at 77: technical accuracy at 100 percent and MEDDIC objection handling at 68 percent, each with the reason and a quote of what the rep said.

Which one to choose

Second Nature fits large enterprises with a dedicated enablement team, existing training content and a long procurement process, including support and call-center teams beyond sales.

Choose Mentor126 if you run a sales team without a big enablement function and need the training built for you: a course from your own material, voice practice graded against it, and pricing a sales leader can sign off without procurement.

Frequently asked questions

What is the main difference between Mentor126 and Second Nature?

Second Nature is an enterprise AI roleplay platform with avatars, many call formats and deep integrations. Mentor126 writes the whole sales course from your material, including lessons and quizzes, with graded voice roleplay inside it, at published per-seat prices.

Is Mentor126 a Second Nature alternative?

Yes, for sales teams that want AI roleplay graded against their own material, with the course built for them and pricing they can see up front.

How does pricing compare?

Second Nature is contact-sales only, and its note on G2 says the minimum average deal starts at $20,000. Mentor126 publishes its prices: Starter $35 and Team $55 per seat per month, with a 15-day free trial for up to 25 users.

How long does setup take?

A first course typically builds in about 15 minutes from your material. Teams with 10 or more reps can have us build it free before a 30-minute walkthrough.

Sources, checked October 26, 2026

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