The Startup Ideas Podcast: Genspark's Super AI Agent is INSANE

Host: Greg Isenberg
Episode Airdate: October 15, 2025

Episode Overview

In this episode, Greg Isenberg provides a deep dive and hands-on review of Genspark—an all-in-one AI productivity platform. Greg takes listeners through live demos of Genspark's innovative "multi-agent" workflows across chat, image, video, slide creation, spreadsheet analysis, and even its AI voice-calling and photo-editing features. The central question: Is Genspark worth your time, and can it truly enhance your creative and entrepreneurial workflow?

Key Discussion Points & Insights

1. Why Genspark? Context & Objectives

• Greg polled 500,000 followers about underrated AI apps—Genspark topped the list.
• Aim: “Is Genspark worth your time? Should you use this?”
• Structure: Greg demos six core features—multi-agent chat, image and video generation, presentation slides, sheets, photo editing (PhotoGenius), and voice-calling AI agent.

2. Multi-Agent Workflow: Chat, Image & Video

Chat Multi-Agent

• Genspark allows a single prompt to run through multiple top-tier LLMs (like GPT-5, Claude Sonnet 4, Gemini 2.5 Flash), then reflects and evaluates which output is best.
• Greg:

  “Instead of doing what I call LLM Ping Pong…you just prompt it once…Hopefully you get the best response.” (03:45)

• Example: Created a YouTube intro prompt, instantly compared outputs, and received a finished, channel-appropriate script plus a built-in reflection on why it fit the channel.
  • Personalization: Genspark can use your X (formerly Twitter) profile to adapt to your style.
  • Greg:

    “It’s gone and scraped who I am. So that’s really cool.” (06:40)

Image Multi-Agent

• Uploads a reference image, then lets multiple AI image models generate variants (Nano Banana, GPT Image, ByteDance Seed Dream, Flux).
• Key insight: Having a reference image greatly improves output quality.
• Features “auto prompt” to optimize your simple prompts for better results.
• Greg:

  “Auto prompt…is literally giving better prompts…optimized prompts…to hopefully give you a better output.” (12:30)

Video Multi-Agent

• Start by creating base images, then use “mixture of agents” to generate short AI videos from them.
• Options to tweak aspect ratio and video length.
• “Auto prompt” writes detailed shot descriptions for enhanced video output.
• Verdict: Some models (VO3) produced impressive, cinematic clips with audio.
• Greg:

  “We were able to create thousands of dollars worth of videos and photos in a very short amount of time.” (17:03)

3. AI Slides: Rapid, Fundraising-Ready Pitch Decks

• Greg’s workflow: Source a startup idea blurb, include supporting data/screenshots, and tell Genspark to make a “highly convincing deck” to raise $2M in Silicon Valley.

• Able to specify design templates and goal (emulating “greatest founders” decks).

• Output is a rough but usable first draft—exportable to Google Slides or PDF.

• Features AI edit (area selection + prompts for instant changes) and fact check options.

• Greg:

  “Think of it as like a wireframe to a mockup…the content is there…just putting the first draft in there.” (20:02) “You can also do this cool thing where you can press fact check…if you’re doing something serious…make sure your data is right.” (21:12)

• Lead magnet tip: Export decks as PDFs, use them gated behind email forms to grow an email list.

4. AI Sheets: Data Sourcing & Analysis

• Demo: Prompted Genspark to create a sheet of top AI YouTubers with subs and available email contacts.
• Output: In a few minutes, a spreadsheet with names, sub counts, and up to 7 emails out of 35.
• Includes built-in visualization and data analysis tools—plus a “Create HTML report” feature.
• Greg compares with more expensive tools like TryShortCut and notes Genspark’s lightweight, cost-effective approach.
• Greg:

  “It has everything: design, development, images…Most people are still using Google Sheets…but I think it’s an unfair advantage for people who understand how to do this.” (25:18)

5. PhotoGenius: Mobile AI Photo Editing

• Neural photo editing within Genspark’s mobile app.
• Greg’s voice command:

  “Hi, I'd like myself to be smiling a bit, but don't show any teeth and also change my eyes to be looking at the camera, please.” (22:35)

• Instant, subtle edits completed; highly realistic.
• Greg:

  “I mean, that's crazy. Like, look at that. It's perfect. And it took like two seconds.” (23:08)
  “I think there needs to be more apps that are just AI as the magic, but voice to AI…I think this is a new paradigm shift.” (23:21)

6. MCP / Tools Hub: AI Workflow Automation

• Genspark’s “tool” plugins (MCPs): Connect Gmail, Google Calendar, Notion, Outlook, X (Twitter), Reddit, and 600+ others.
• Security caution: “Be careful what data you’re sharing…especially to independent MCP tools.” (24:25)
• Live demo: Queried Gmail for most important unanswered emails; calendar for key meetings.
• Seamless, query-based SaaS operational model is the “future”; recommend reviewing MCP/plugin options for your workflow.

7. AI Voice Agent: Automated Phone Calls

• Task-based calling agent: Can call businesses or contacts, deliver a message, record the conversation, transcribe, and email a summary.
• Personalized greeting: Agent identifies as “Greg's AI assistant”—Greg applauds this for transparency.
• Live demo: Connected to his YouTube editor—request for key metrics, transcript and summary.
• Some issues: Audio delays, abrupt pauses upon interruption, synthetic-sounding voices, but “insane” potential.
• Greg:

  “The fact that I’m even…picking fun on it is ridiculous…for like $20 a month I have someone who can call anyone and transcribe it and send me an email when it's done.” (32:03)

Memorable Quotes

• “Instead of doing what I call LLM Ping Pong…you just prompt it once…Hopefully you get the best response.” (03:45)
• “This is going to save me time and tokens, so I'm happy to use this.” (06:31)
• “We were able to create thousands of dollars worth of videos and photos in a very short amount of time.” (17:03)
• “Think of it as like a wireframe to a mockup…the content is there…just putting the first draft in there.” (20:02)
• “I mean, that's crazy. Like, look at that. It's perfect. And it took like two seconds.” (23:08)
• “...for like $20 a month I have someone who can call anyone and transcribe it and send me an email when it's done.” (32:03)

Feature Timestamps

• 00:00 – 02:00: Episode introduction & overview of tasks
• 03:00 – 09:00: Multi-agent chat workflow demo
• 10:00 – 14:00: Multi-agent image generation + auto prompt
• 16:00 – 19:30: Multi-agent video generation
• 19:30 – 23:00: AI Slides walkthrough, deck design philosophy and export
• 23:00 – 25:00: AI Sheets/Spreadsheet creation
• 25:00 – 28:00: PhotoGenius mobile photo editing (live use)
• 28:00 – 30:00: MCP tools/plugin integrations (Gmail, Calendar, Notion)
• 30:00 – 33:00: AI Voice agent (call & transcribe demo)
• 33:00 – End: Episode wrap-up, verdict, and recommendations

Overall Verdict & Takeaways

• Multi-agent workflow: Standout feature, offering competitive, diverse outputs with one prompt—major time/tokens saver.
• All-in-one platform: Anything from slide decks to business calls can be initiated in-app, making Genspark a frictionless creator workspace.
• Pricing: $20/month deemed affordable, with agent and multi-modality features on par with (or better than) pricier competitors.
• Improvements Wanted: More natural AI agent voice and conversational flow; slightly more polish on design templates; security transparency with third-party plugins.

“If you're looking for a cheaper subscription, don't want to subscribe to so many different tools, and are looking for multi-agent...Genspark is already part of my workflow now.” (34:00)

Next Steps & Listener Engagement

• Greg invites listeners to request breakdowns for other AI tools.
• End note:

  “I hope this has been helpful and yeah, happy building.” (End)

For more startup ideas and access to Greg’s curated database, visit gregisenberg.com/30startupideas.