Franster

Building tools for builders.

[Franster @franster_lee]

It's finally here.

[OpenAI @OpenAI]

Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work.

https://t.co/OoM83SyISN

[OpenAI @OpenAI]

Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work.

https://t.co/OoM83SyISN

[ClaudeDevs @ClaudeDevs]

Thanks for building with us at Claude Build Day!
300 builders spent their Saturday with us in SF, and we're blown away by what you made in a single day.

Here are all the winning demos: 🧵

[Franster @franster_lee]

Thanks for the detailed feedback! 🙏

Yes, you're right — the map loading, 3D tiles, and city areas still have some issues (especially minimap flickering and Z-fighting/stitching when switching views).

I’ve tried fixing them, but the changes often create new problems elsewhere. This is exactly why I realized: when building with AI, it’s crucial to define the underlying architecture, framework choices, and proper structure upfront. Otherwise the AI tends to take the fastest shortcuts, and it becomes much harder to extend or maintain later.

Appreciate you testing it!

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

Wow, these winning demos look amazing! 👏

If I had submitted my Aero Radar (a real-time global flight simulator built in the browser with Fable/Claude), do you think it would have had a chance? 😊

Still a bit glitchy but the core experience is pretty fun. Would love to hear your thoughts!

https://t.co/d2IcjdrMI3 ✈️

https://t.co/d46QvNIeXJ

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

@zachdive @adamdotnew Can you export a 3D file? I want it to fly.
https://t.co/tUYsjPUW3O

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

@anumulasachin Thanks! Glad you like it Fable picked the entire stack by itself — I didn’t specify any tech. I only polished details afterwards.

I’ve noticed that without guiding the AI to a more stable stack, it can cause issues with long-term maintenance, extensibility, and stability.

[Franster @franster_lee]

@Plebian_2 Thanks! Yeah, it's still an early MVP. Working on fixing the glitches - any specific issues you noticed?

[Franster @franster_lee]

@Vishakuthota Thank you

[Franster @franster_lee]

@ardent__dev A flight simulator that allows you to view real-time flights in 3D.
https://t.co/tUYsjPUW3O

https://t.co/QLfAr5rxHu

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

@dangreenheck This is fantastic! Could you integrate it into other projects? Take a look at my flight simulator.
https://t.co/tUYsjPUW3O

https://t.co/QLfAr5rxHu

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

@nostrinsurer It currently looks more like a display piece, but with a more stable data source and Google 3D Maps, it might look more realistic.

[Franster @franster_lee]

@probiex007 This also runs on a webpage, based on Three.js and WebGL rendering. It uses Live ADS-B data to obtain a real-time flight simulator.
https://t.co/tUYsjPUW3O

https://t.co/QLfAr5rxHu

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

@0xPajke That's awesome! I made one too. Feel free to try it out.
https://t.co/tUYsjPUW3O

https://t.co/QLfAr5rxHu

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇

[Franster @franster_lee]

That's so cool!

[probiex007 @probiex007]

🤯 This is a website, a simple web-based game built with WebGL and Three.js.
Website: https://t.co/G0cDgaWzKe
It's honestly surprising how far web development has come.

[Franster @franster_lee]

@artik_yorulduk I really like you. Can you follow me back? I'm very willing to interact in the comments section.

[Franster @franster_lee]

@artik_yorulduk .

[Franster @franster_lee]

@Crypto77qi 来 兄弟们

[Franster @franster_lee]

@Joi2James A flight simulator that allows you to view real-time flights in 3D.
https://t.co/tUYsjPUW3O

https://t.co/QLfAr5rxHu

[Franster @franster_lee]

In the two days Claude Fable 5 existed, I built a real-time global flight simulator, I finished the rest with Opus 4.8.

Live ADS-B data — watch a real flight fly its full approach, flare, touchdown and taxi. Or take the controls and fly one yourself. ✈️

Runs in your browser 👇