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
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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.
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Able to specify design templates and goal (emulating “greatest founders” decks).
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Output is a rough but usable first draft—exportable to Google Slides or PDF.
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Features AI edit (area selection + prompts for instant changes) and fact check options.
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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)
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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.
