JustCopy.ai vs v0, Bolt, Rocket, Emergent & Base44 - We Tested Them All Building the Same App

We tested them all—building the same "Todo" app from scratch using identical prompts, requirements, and a stopwatch.

The goal: Which AI tool actually delivers production-ready output, not just pretty demos?

📹 Watch the full head-to-heads:

• JustCopy.ai vs Base44: https://youtu.be/c79HJaWz6Y8

• JustCopy.ai vs Bolt: https://youtu.be/g58D5AZqZGg

• JustCopy.ai vs Emergent: https://youtu.be/smRZenQ8JfA

• JustCopy.ai vs Rocket: https://youtu.be/xQBIhp0xe_k

• JustCopy.ai vs V0: https://youtu.be/rxseYQCjims

• JustCopy.ai vs Lovable: https://youtu.be/cy8qtZDqQh4

⚡ Why Run This Experiment?

After 8 weeks evolving JustCopy.ai and obsessing about AI agents, I had to see how we stacked up- could our focus on reliability and shippable code win in the wild?

📊 What We Measured

• Speed: Time to the first working version

• Code quality: Prototype vs production

• Reliability: Did agents deliver or get lost?

• Real output: Ship-ready, or just for show?

💥 What Shocked Us

Most AI builders optimize for cool demos. We went for production—real sites you can deploy right away.

Result: The gap is WAY bigger than we expected.

🎓 What We Learned

1. Simple agents beat complicated multi-agent hype.

The fanciest setups failed the most. A focused single agent outperformed every stack.

2. Constant reinforcement = higher success rate.

Success jumped from 80% to 95%+ just by keeping agents oriented and on-task.

3. Smart context handling—higher quality, lower cost.

Streamlined context made the model better AND 10x cheaper.

🔥 What's JustCopy.ai?

An AI agent that instantly clones any website, lets you edit via conversation, and ships production-ready marketing sites—in minutes.

Current focus: Marketing sites that convert.

Next: AI chatbots, image generators, and much more.

• Live traction: 1,000+ daily users, 10%+ daily growth!

Curious how an optimized agent can beat the incumbents? Dive into the comparisons.

Happy to answer questions about the wildest lessons we learned from building justcopy.ai, and why you don't need "AI spaghetti" to deliver real results.