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We are often asked
Who can benefit from this service?
Available payment options
Where can I stay updated on Riser?
Can I use my own API keys to access AI models?
What are AI personas?
How to choose a persona?
How much does one request cost and what are "Sparks"?
Who is "Athena, Analyst" and why is she more expensive?
How does "Spark Wallet" differ from "Professional"?
What models and providers does Riser use?
How do teams and unified billing work?
Parameter management: tokens, temperature, context
Can I switch between models or personas in one chat?
Spark refunds and disputed answers
Confidentiality and security
Supported languages and answer quality