Frontier AI models, infrastructure and tooling
Try emerging text, image, video and voice models in projects you care about.
Growth Champions
Get early access to frontier technology
Be first to test, review, and create content around products launching in developer tools, AI, cloud infrastructure, and open source.
Apply for early access 
For people who love getting
hands-on with new tech.
Your experience matters
Already sharing your
take?
Find your next product to try. If you already post about the tools you use, you’re who we’re looking for.
Get your hands on new tech
AI coding tools
Put new coding agents and editors to work in your own projects.
Developer products
Build with APIs, SDKs, databases and infrastructure. See how they fit your stack.
These are examples of product categories. Available programs and access vary.
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01
Create your profile and preferences
Share your interests and the channels you create for so we can match you with relevant early access opportunities.
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02
Get early access
Once approved, we’ll invite you to products that fit your interests. Review the brief and any attached benefits or compensation, then choose what you want to try.
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03
Share your take and get paid
Try the product, share your honest experience, and get paid. If the brief includes a public post, clearly disclose the partnership.
“A champion is truthful and says what it is, even if the product isn’t all that.”
William Imoh
Founder & CEO, Hackmamba
Questions about Growth Champions?
People who enjoy trying new tech and sharing what they learn. We look at your interests, original content and the audience you reach to find relevant early access opportunities.
Programs may include new AI models, coding tools and developer products. Access depends on the programs available and how your interests, experience and audience fit.
No. A small, relevant audience can be a good fit. We look at the tech you use, the content you share and the people it reaches.
No. Share what worked and what didn’t. Your opinion stays yours. You must clearly disclose the paid partnership.
Yes. Tell us where you’re based and which languages you create in so we can match you with relevant opportunities.
Every opportunity is paid. You’ll know the fee, deliverables and payment terms before accepting. Complete the agreed work and get paid in US dollars through Stripe. Payout availability varies by country.
We review your River profile and contact you when a program matches your interests and audience. You see the brief and fee before accepting an invitation. Invitations depend on product fit and program availability.