OpenAI 2026 hackathon

Rizz Invites

I no longer wanted to pay $36.99 for a kids birthday party invite, multiplied by 3 children per year. So, I built Rizz Invites: free up to 10 guests and $14.99 after that. No Ads, No Subscriptions.

Team of 2 · 0 likes · 0 comments

Archive position — measured, not model output

0 likes on Devpost

2,264 of the 7,856 archived projects have more likes, and 5,592 share exactly 0 — so this project's #6,433 place in the like-ranked listing is a tie-break inside that group, not a ranking.

Projects (log scale)

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Likes on Devpost. ▲ marks this project's group.

Show the figures
LikesProjectsShare of archive
05,59271.2%
11,75822.4%
22853.6%
3–41321.7%
5–9751.0%
10+140.2%
Devpost like counts for all 7,856 archived projects, captured when this archive was built.

Executive Summary

Rizz Invites is a self-reported digital invitation platform for parents planning children's birthday parties. The author states it allows sending invitations via text or email, collecting RSVPs, and managing event details in one place. It is positioned as a free alternative to traditional paid platforms, charging only after 10 guests. The product was built by two team members using AI tools (Codex, Figma Make) over a short development period.

Key commercial signals are absent: no revenue, pricing tiers beyond the $14.99 threshold, customer base or adoption metrics beyond self-reported user counts. The description states no subscriptions but does not clarify how the platform intends to monetize beyond the optional fee after 10 guests.

The most important open question is whether Rizz Invites can scale beyond its initial user base and achieve sustainable traction without a clear path to monetization beyond one-time fees, or if it will remain a niche tool for early adopters.

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What The Product Actually Is

The description states that Rizz Invites sends invitations via text or email, allows RSVP collection, and keeps event details in one place. It also supports sharing a single link with teachers to invite entire classes (common in daycares and schools), and enables parents to confirm attendance.

It is described as mobile-friendly and built without clunky design tools. The author notes that it does not use traditional design tools but instead relies on AI-based coding (Codex) and visual design (Figma Make).

Inference: Based on the description, the product appears to be a lightweight digital event planning tool focused on simple invitation and RSVP functionality for children's parties.

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Positioning & Claim Evolution

The author claims that Rizz Invites was built in response to high costs of traditional platforms ($36.99 per child per party) and the presence of ads in existing services. It is positioned as a free alternative up to 10 guests, with optional payment after that.

The platform is described as having no subscriptions, which the author says is a key differentiator from other services they've experienced.

Inference: The positioning has evolved from a personal solution for one parent (to avoid paying excessive fees) into a broader product aimed at parents who are tired of recurring charges and ads in existing platforms.

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Target Customer & ICP

The description states that Rizz Invites is intended for parents planning children's birthday parties, particularly those with multiple children. The author mentions being a parent of three as the motivation behind building it.

It also notes that it supports sharing invitations with teachers to invite entire classes, indicating use in daycare and school settings.

Inference: The primary customer segment appears to be parents planning children’s parties, especially those with more than one child, and potentially educators or caregivers involved in group events.

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Business Model & Pricing Evidence

The description states that Rizz Invites is free up to 10 guests, and charges $14.99 after that. It also claims there are no subscriptions.

There is no evidence of revenue streams beyond this optional fee structure, nor any indication of how the platform intends to scale or monetize beyond this model.

Inference: The business model appears to be a freemium-style approach with a single-tiered pricing model for larger events. However, the lack of clarity on how the platform will sustain itself beyond one-time fees remains unclear.

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Technical & Delivery Signals

The project was built using Codex, Figma Make, and GitHub. The author notes that they used "vibecoding" and had to spend significant time working with Figma Make before explaining it to Codex.

It is described as mobile-friendly, and the team consisted of two people: one engineer and one non-technical product manager.

Inference: The technical stack suggests a rapid development process using AI-assisted tools. The delivery approach indicates a lean, bootstrapped build with limited design resources.

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Traction & Maturity Signals

The author reports 1,400 new users, 6,000 emails sent, 5,100 SMS sent, 200 parties planned, and 876 confirmed RSVPs. These numbers are self-reported and not independently verified.

There is no evidence of revenue, customer retention, or long-term engagement metrics beyond these counts.

Inference: The platform shows early signs of adoption but lacks data on user behavior, monetization, or growth trends that would indicate maturity or scalability.

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Competitive Context

The author states that traditional invitation platforms charge $36.99 per child, and that existing services include ads shown to guests who RSVP. They also note that “telephony” companies are ripe for disruption due to poor UI and unclear industry standards.

There is no mention of direct competitors or market analysis beyond this general critique.

Inference: The competitive landscape includes traditional online invitation platforms with recurring fees and advertising, but the author does not identify specific players or provide a detailed competitive comparison.

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Key Risks & Red Flags

  • No verified revenue or monetization strategy beyond optional fees after 10 guests
  • Lack of clarity on how the platform will scale without subscriptions or recurring revenue models
  • Self-reported metrics without independent verification
  • Limited team size (2 people) may constrain execution and growth
  • No evidence of customer feedback loops, retention, or long-term engagement

Inference: The lack of a clear monetization model beyond one-time fees raises concerns about sustainability. The absence of verified traction data and limited team capacity suggest potential challenges in scaling.

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Diligence Questions To Ask The Founders

  1. What is the actual conversion rate from free users to paying customers after 10 guests?
  2. How do you plan to acquire and retain users beyond initial adoption?
  3. Are there any plans for additional monetization features or tiers beyond the $14.99 fee?
  4. Can you provide more details on how the platform handles user data privacy and compliance with SMS laws?
  5. What are your long-term goals for growth, and how do you plan to scale beyond the current team size?

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Investment/Partnership Verdict

The description states that Rizz Invites was submitted to the OpenAI 2026 hackathon, indicating it is likely an early-stage prototype or MVP. There is no evidence of funding, revenue, or significant traction beyond self-reported numbers.

Inference: Given the lack of verified financials, customer data, and a clear path to monetization, this appears to be a pre-revenue product with uncertain commercial viability. It may have potential as a proof-of-concept but lacks the signals typically required for investment or partnership consideration at this stage.

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Source

Submitted to the OpenAI 2026 hackathon on Devpost. Project home on DevPost.

The analysis above was generated by a language model from the project's own one-line description. It is not independent research and contains no verified traction, revenue or customer data.