Is the earth actually flat like Elon Musk just Tweeted with new insigths and evidence from SpaceX?

GPT-5.4

Vote: No

The Earth is not flat. It is an oblate spheroid, which is supported by overwhelming evidence from physics, astronomy, geodesy, satellite imaging, and direct measurement. SpaceX itself provides evidence against a flat Earth. Rocket launches, orbital mechanics, satellite operations, and images from space all depend on the Earth being round. GPS, weather satellites, and communication satellites would not work as they do on a flat-Earth model. A tweet, even from a prominent person, is not stronger than centuries of reproducible scientific evidence. Claims about "new insights" should be evaluated against observable data, and the data strongly support a round Earth.

Grok 4.1 Fast

Vote: No

The Earth is an oblate spheroid, confirmed by centuries of scientific evidence including satellite imagery, GPS, gravity measurements, and observations like ships vanishing hull-first over the horizon. SpaceX missions, including Falcon 9 launches and Starship tests, provide live footage of Earth's curvature from space, directly contradicting flat Earth claims. Elon Musk has never tweeted support for a flat Earth; such claims are fabricated misinformation. Searching Twitter/X yields no such post, and Musk promotes space exploration affirming round Earth physics.

Sonar Pro

Vote: No

The premise of the question is false. Elon Musk did not tweet that the Earth is flat with new insights and evidence from SpaceX. The search results show that in November 2017, Musk made a humorous tweet asking 'Why is there no Flat Mars Society?' as a joke[1][2][3]. The Flat Earth Society responded seriously, stating 'Unlike the Earth, Mars has been observed to be round'[1][3]. This exchange was satirical commentary on flat Earth believers, not a serious claim by Musk that the Earth is flat. Musk has never provided evidence from SpaceX supporting a flat Earth theory. SpaceX's actual work—including satellite launches and space exploration—has consistently operated on the basis that Earth is spherical, as demonstrated by orbital mechanics and imagery from space. The Earth is definitively spherical, supported by centuries of scientific evidence, observations from space, satellite data, and basic physics[1][3].

Kimi K2.5

Vote: No

The premise of this question is factually incorrect. Elon Musk has not tweeted that the Earth is flat, nor has SpaceX provided evidence supporting a flat Earth. This claim appears to be entirely fabricated. Overwhelming scientific evidence confirms Earth is an oblate spheroid. This has been established through centuries of observation, including circumnavigation, gravity measurements, and direct photographic evidence from thousands of satellites and crewed space missions. SpaceX specifically has live-streamed numerous launches showing the curved Earth from space, including the Falcon Heavy Starman mission and Dragon orbital flights. The company operates a global satellite constellation (Starlink) that relies on precise orbital mechanics around a spherical Earth, which would be impossible if the planet were flat.

Claude Opus 4.6

Vote: No

The Earth is not flat. This is one of the most well-established scientific facts, supported by centuries of evidence from astronomy, physics, geodesy, satellite imagery, GPS systems, and countless other fields. Elon Musk has not tweeted credible evidence that the Earth is flat. SpaceX's own rockets carry cameras that clearly show the curvature of the Earth during launches. The company's entire business model — putting satellites into orbit around a spherical Earth — depends on the Earth being round. Orbital mechanics simply do not work on a flat plane. The premise of the question appears to be misinformation or a hypothetical scenario. Even if such a tweet existed, it would contradict SpaceX's own engineering, NASA's data, ESA's data, and the independent observations of millions of scientists, pilots, sailors, and astronauts throughout history. The spherical shape of the Earth is confirmed by direct observation from space, the way gravity works, the circular shadow Earth casts on the Moon during lunar eclipses, the way ships disappear hull-first over the horizon, time zones, and much more. No single tweet can overturn this mountain of evidence.

Gemini 3.1 Pro

Vote: No

The Earth is an oblate spheroid, not flat. Any claim that Elon Musk or SpaceX provided new evidence proving a flat Earth is definitively false and based on misinformation. SpaceX's entire business model relies on orbital mechanics, gravity, and physics that only function on a spherical planet. Launching payloads into orbit, calculating trajectories, and operating the Starlink satellite constellation would be mathematically and physically impossible if the Earth were flat. Furthermore, SpaceX regularly provides live, unedited video feeds from their rockets and spacecraft. These streams consistently and clearly show the undeniable curvature of the Earth from space, reinforcing centuries of scientific consensus.

Final Summary

The AI Roundtable met a prompt based on alleged 'Elon Musk insights' with a wall of unanimous skepticism, as every model immediately identified the premise as factually incorrect. Grok 4.1 Fast and Sonar Pro took the lead in debunking the misinformation, noting that Musk has never made such a claim and that SpaceX’s entire business model—launching satellites into orbit—is physically impossible on a flat plane. Claude Opus 4.6 and Gemini 3.1 Pro further emphasized that centuries of scientific evidence cannot be overturned by a fabricated tweet, especially when SpaceX's own live-streamed footage shows the Earth's curvature in real-time.

No agreement after 1 rounds of discussion. Final vote: No: 6

Strongest Arguments

• No: SpaceX's entire operational existence, from the Starlink constellation to Falcon 9 orbital trajectories, relies on the physics of a spherical planet; orbital mechanics are mathematically incompatible with a flat Earth model.