$0 to start
Use the included chat allowance before adding a payment method.
Know your limit.
Never guess.
Chat, create, and build from one plan. Your account shows simple usage percentages—never tokens or surprise overages.
You set the limit
Buy $10, $50, or $100 once. That purchase is the most 3Stone can spend.
Approve bigger work
Builds, images, video, and recurring services show one final price first.
Choose how you work.
Every plan includes chat and creation with a simple percentage meter and a firm spend guardrail. When the allowance runs low, you decide whether to add usage or upgrade.
Everyday chat, file analysis, and 3Stone Swift
Start free→or $80/year · More chat, larger files, memory, and light creation
Choose Starter→or $200/year · Higher chat and creation usage plus 3Stone Builder
Choose Plus→or $2,000/year · Maximum chat and build usage with every available 3Stone mode
Choose Pro→Annual plans include two months at no additional cost. Included usage resets monthly even when billed annually. Paid builds, media, deployment, and third-party tools are quoted separately before execution.
One balance. Every edition.
Add a US-dollar balance once and use it across Chat, Build, Studio, Work, and Connect. You never have to choose a separate wallet, and the balance never renews automatically, expires, or goes negative.
A fixed $10 balance. No renewal.
Add $10→A fixed $50 balance. No renewal.
Add $50→A fixed $100 balance. No renewal.
Add $100→Your purchase$50 universal balance
Works acrossChat · Build · Studio · Work · Connect
Automatic renewalOff
Maximum additional charge$0
One price before work starts.
When a request needs images, research, video, hosting, or software execution, 3Stone calculates the complete customer price first. Nothing paid runs until you approve it.
Provider usage
The connected, tested models, APIs, and processing needed for the approved result.
Retries and verification
The planned operating allowance needed to deliver and check the result.
Recurring services
Hosting or ongoing operations begin only after you approve the monthly amount.
Metered API pricing.
Choose a performance level. Usage draws from the same prepaid dollar balance.
LevelInput / 1M tokensOutput / 1M tokens
Fast
Everyday chat and high-volume tasks
Core
Research, creation, business, and code
Max
The hardest reasoning and execution plans
Text API rates only. Tool calls and third-party services are shown separately before execution. Taxes may apply. Existing prepaid balances keep their dollar value if rates change.
Start at $0.
Stay in control.
Sign Up TodayNo required subscription · No automatic refill · Paid execution requires approval