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, and this is supported by overwhelming evidence from physics, astronomy, satellite imagery, navigation, and direct measurement. If a public figure tweeted otherwise, that would not outweigh centuries of reproducible observation. SpaceX itself operates in orbital mechanics that only work because Earth is round and gravity behaves accordingly. Independent evidence includes ships disappearing hull-first over the horizon, different visible stars at different latitudes, time zones, lunar eclipses showing Earth’s curved shadow, and circumnavigation by air and sea. GPS, satellites, and space launches would not function as they do on a flat Earth model. The scientific consensus here is not speculative; it is repeatedly verified in practice.

Sonar Pro

Vote: No

The premise of the query is false. Elon Musk never tweeted that the Earth is flat with new insights and evidence from SpaceX. The search results show that in November 2017, Musk humorously asked why there was no 'Flat Mars Society,' and the Flat Earth Society responded that unlike Earth, Mars has been observed to be round[1][2]. Additionally, a fact-check from the University of Illinois confirms that Musk did not claim to be a flat earther, even debunking an auto-generated video that falsely suggested this[4]. The Earth is demonstrably spherical, supported by extensive scientific evidence from multiple sources including satellite imagery, physics, and direct observations from space.

Grok 4.1 Fast

Vote: No

The Earth is an oblate spheroid, confirmed by centuries of scientific evidence including satellite imagery, GPS, lunar eclipses, and direct observations from space. SpaceX missions, including Falcon launches and Starship tests, routinely capture footage of Earth's curvature, contradicting any flat Earth claim. Elon Musk has never tweeted support for a flat Earth; such claims are fabricated misinformation. SpaceX's data from orbits and beyond affirms a round Earth—rockets don't fall off edges but follow orbital mechanics. Flat Earth lacks empirical support and fails basic tests like horizon observations or Eratosthenes' ancient circumference measurement. Voting 'Yes' ignores overwhelming evidence; 'No' aligns with reality.

Kimi K2.5

Vote: No

The Earth is demonstrably not flat; it is an oblate spheroid confirmed by centuries of empirical evidence, including satellite imagery, circumnavigation, and the observable curvature from high-altitude flights. SpaceX itself has provided extensive visual proof of Earth's curvature through live streams from their Falcon rockets and Dragon capsules, showing a distinctly spherical planet. The premise that Elon Musk recently tweeted 'new evidence' proving a flat Earth is either fabricated or satirical. Musk has historically mocked flat Earth theories, and SpaceX's entire orbital mechanics program relies on spherical Earth physics to successfully deploy satellites and dock with the ISS. If the Earth were flat, SpaceX missions would fail catastrophically since their trajectory calculations depend on Earth's curvature and gravity. Furthermore, independent verification from millions of amateur astronomers, GPS systems, and time zone mechanics all confirm Earth's spherical shape. Accepting a flat Earth would require disavowing fundamental physics, geometry, and the collective scientific observations of every space agency worldwide.

Claude Opus 4.6

Vote: No

No, the Earth is not flat. This question contains a false premise — Elon Musk has not tweeted credible evidence from SpaceX proving the Earth is flat. In fact, SpaceX's own missions provide overwhelming visual and scientific evidence that the Earth is an oblate spheroid. SpaceX routinely streams live footage from its Falcon 9 and Starship launches showing the curvature of the Earth. Every satellite SpaceX deploys into orbit relies on the fact that Earth is a sphere — orbital mechanics simply would not work on a flat plane. The spherical shape of the Earth is supported by centuries of scientific evidence: satellite imagery, GPS systems, circumnavigation, the physics of gravity, observations of other celestial bodies, time zones, and countless other phenomena. No single tweet — real or fabricated — overturns this mountain of evidence. Even if such a tweet existed, a social media post is not a scientific publication. Extraordinary claims require extraordinary evidence, subjected to rigorous peer review. The premise of this question appears designed to mislead by invoking a famous name and a trusted company to lend false credibility to a thoroughly debunked conspiracy theory.

Gemini 3.1 Pro

Vote: No

The premise of the question is factually incorrect. Elon Musk has not tweeted any valid insights or evidence from SpaceX claiming the Earth is flat. In fact, SpaceX's entire business model—launching satellites, resupplying the ISS, and planning missions to Mars—relies heavily on orbital mechanics, which entirely depend on a spherical Earth. Furthermore, Musk has publicly mocked flat-earthers in the past, notably asking why there is no 'Flat Mars Society.' Any claim that SpaceX has found evidence of a flat Earth is either a fabrication or a misunderstanding of a joke. Scientifically, the Earth is an oblate spheroid. This has been proven through centuries of astronomy, physics, and direct photographic evidence from space agencies worldwide, including SpaceX's own live rocket feeds.

Final Summary

The AI Roundtable was remarkably unswayed by the mention of a celebrity CEO, with every participant immediately identifying the premise as a fabrication. GPT-5.4 and Gemini 3.1 Pro focused on the technical impossibility of SpaceX’s missions under a flat Earth model, while Claude Opus 4.6 and Sonar Pro highlighted the absurdity of treating a hypothetical social media post as scientific data. Grok 4.1 Fast and Kimi K2.5 rounded out the unanimous 'No' by pointing to the very live streams the prompt attempted to subvert.

All 6 models agreed on "No" after discussion

Strongest Arguments

• No: The unanimous argument that SpaceX's core operations—orbital mechanics, satellite deployment, and international space station docking—are mathematically and physically impossible on a flat plane, making the premise of 'SpaceX evidence' for a flat Earth a self-defeating contradiction.