Footer navigation

Unlocking state-of-the-art artificial intelligence and building with the world's talent

LinkedIn
Twitter/X
Instagram
Discord
YouTube
Twitch

Other group brands:

Links

AI Tech
AI Hackathons
AI Tutorials
AI Applications
NativelyAI
AI Articles
Leaderboard
Writers

lablab

About
Brand
Hackathon Guidelines
Terms of Use
Code of Conduct
Privacy Policy

Get in touch

Discord
Sponsor
Cooperation
Contribute
[email protected]

© 2026 NativelyAI Inc. All rights reserved.

3.33.0

Help CenterBrowse FAQs and ask our AI.

Discord CommunityChat with mentors and the team.

AI Hackathons AI Apps AI Tech AI Tutorials AI Articles NativelyAI Sponsor

AI app: Sapphire's Captioning Service for AMD Developer Hackathon: ACT II

Home
App Discovery
Sapphire's Captioning Service

Sapphire's Captioning Service

Created by team SapphireVIP on July 08, 2026

Gemini 3 Flash Cloudflare Workers AI

Video Captioning

Sapphire Video Captioning Agent is a Track 2 video captioning submission for the AMD Developer Hackathon ACT II. The container reads tasks from /input/tasks.json, downloads each video, prepares it with ffmpeg, and sends it through a Cloudflare Worker proxy to a vision-language model via OpenRouter. For every requested clip, it returns valid JSON to /output/results.json with captions for the required styles: formal, sarcastic, humorous_tech, and humorous_non_tech. The project focuses on faithful visual descriptions, concise language, style matching, retries, fallback captions, and the exact input/output contract required by the challenge.

Category tags:

Agent Builder track - The INTERNET OF AGENTS, Video

Github Presentation Demo

Explore more applications

SmartRoute AI

SmartRoute AI is an intelligent AI routing system that uses GenAI and Supabase to route user queries to the best model (OpenAI, Gemini, Ollama) based on context and cost

kk

ZeroTicket: AI Support-as-Code

An autonomous AI Tier-3 support engineer that automates technical SaaS operations by securely reasoning over codebases, database records, server logs, and recent Git history using a secure SQL Security Guard and AMD-optimized local LLMs.

RyzenShield

AI/ML APIAMD Developer CloudAntigravityGemmaOpenAILLaMA

OpenRisk AI

OpenRisk AI is an AI-powered smart contract security copilot that analyzes Solidity repositories from GitHub, performs automated static analysis, calculates security risk scores, and generates actionable audit reports using large language models.

WhiteRabbit

TokenRouter the prove-or-escalate agent

An agent that spends Fireworks tokens only when it has to: free plain-code solvers first, then a bundled local Gemma, then Fireworks only after a verified miss. Two-thirds of tasks cost zero tokens, and a wrong free answer is structurally impossible.

SprintSprint

67 4t

e h t ;ht het het jte te tje jte th e tej jt tj

Absolut Void Development

Mrinaal AA
Chaitanya Singh

Upcoming AI Hackathons
For Innovators & Creators

Explore more applications

SmartRoute AI

SmartRoute AI is an intelligent AI routing system that uses GenAI and Supabase to route user queries to the best model (OpenAI, Gemini, Ollama) based on context and cost

kk

ZeroTicket: AI Support-as-Code

An autonomous AI Tier-3 support engineer that automates technical SaaS operations by securely reasoning over codebases, database records, server logs, and recent Git history using a secure SQL Security Guard and AMD-optimized local LLMs.

RyzenShield

AI/ML APIAMD Developer CloudAntigravityGemmaOpenAILLaMA

OpenRisk AI

OpenRisk AI is an AI-powered smart contract security copilot that analyzes Solidity repositories from GitHub, performs automated static analysis, calculates security risk scores, and generates actionable audit reports using large language models.

WhiteRabbit

TokenRouter the prove-or-escalate agent

An agent that spends Fireworks tokens only when it has to: free plain-code solvers first, then a bundled local Gemma, then Fireworks only after a verified miss. Two-thirds of tasks cost zero tokens, and a wrong free answer is structurally impossible.

SprintSprint

67 4t

e h t ;ht het het jte te tje jte th e tej jt tj

Absolut Void Development