Start free. Upgrade when you hit the wall.
Paid tiers get a monthly coin allowance for chat. Short answers usually cost less; long thinking or large answers cost more. Run out? Buy a Boost pack or upgrade.
Taste the product.
- ▸10 chat messages per month
- ▸Full read access to compound articles
- ▸Chat handles unit conversions and vial math
Everyday research.
- ▸250 chat coins per month
- ▸Stack tracker + journal
- ▸Unlimited article access
- ▸Coin top-ups available
For serious self-experimenters.
- ▸550 chat coins per month
- ▸Everything in Base
- ▸Priority access to new agent features
For clinicians + power users.
- ▸1,400 chat coins per month
- ▸Everything in Pro
- ▸Early access to beta features
- ▸Direct feedback channel
One-time coin purchases. Available on any paid tier — top up when you burn through your monthly allowance faster than expected.
Coin top-ups unlock alongside any paid plan. Pick Base, Pro, or Max above — you can buy a Boost pack any time after that.
Pick a plan first ↑Coin costs: Short final answers usually cost fewer coins; longer answers with more thinking cost more.
Reset timing: Paid-tier coins reset on your subscription anniversary. Free-tier messages reset 30 days after signup.
Cancel anytime: You keep access until the end of your billing period. Purchased coin packs do not expire as long as your account is active.
Questions? Email support@peptutor.net.