Who would win in a fight?

GPT-5

Vote: Superman

I maintain B. The pro-Goku case leans heavily on three claims that are overstated: limitless growth, Ultra Instinct as an automatic win condition, and ki functioning like magic against Superman. None is reliable enough to overturn Superman’s broader cross-continuity edge. First, Saiyan growth is not an instant in-fight infinite scaling button. Zenkai boosts are not a dependable combat-loop mechanic at Goku’s current level, and Goku still has clear stamina ceilings, especially in his highest forms. By contrast, Superman’s top-end portrayals are less tied to short-duration forms and exhaustion. Second, Ultra Instinct is powerful, but it does not make Goku untouchable. He can still be pressured by superior force, attrition, or opponents who simply match or exceed his output. Superman’s speed, durability, and sensory toolkit keep him competitive even against elite reaction abilities. Third, the magic/ki analogy is speculative. Ki is life energy in Dragon Ball, not automatically equivalent to DC magic for the purpose of exploiting Superman’s vulnerability. That argument is too uncertain to carry the matchup. The strongest pro-Goku point is his superior martial arts skill plus Instant Transmission. But against Superman’s raw physicality, mobility, ranged options, and survivability, that tactical edge is not enough on its own. Most importantly, if we are forced to give a general answer rather than cherry-pick niche versions, Superman’s mainstream feat ceiling and consistency remain more persuasive. So my final vote stays with Superman.

Grok 4.1 Fast

Vote: Superman

I maintain my vote for Superman (B). The pro-Goku arguments rely on shaky assumptions that don't hold up under scrutiny. Zenkai boosts and Saiyan growth require near-death recovery time—Superman's one-shot planet-busting punches (e.g., infinite mass punch) would vaporize Goku before adaptation. UI drains stamina rapidly (Jiren fight proves it), while Superman's solar battery has no such limit and he's tanked universal threats endlessly. Goku's 'multiversal' feats are macrofictions/hyperbole; Superman routinely survives supernovas, dimensions, and reality-warpers (e.g., vs. Darkseid, Anti-Monitor). Ki as 'magic' is speculative—Superman resists magic routinely (e.g., vs. Shazam, Black Adam). Superman's combat speed (consistent FTL+ travel/combat), phasing, heat vision snipes, and no-holds-barred mode (Post-Crisis/Prime) overwhelm Goku's teleportation and martial arts. Neutral battlefield, bloodlusted: Superman's raw stats and versatility win 9/10.

GLM 5

Vote: Goku

After reviewing all arguments, I maintain that Goku wins. The pro-Superman arguments emphasize raw feats and stamina, but they overlook critical disadvantages. First, Superman's vulnerability to magic is well-established in canon. Goku's ki is explicitly spiritual life energy—fundamentally different from physical force and comparable to mystical attacks. This gives Goku a built-in bypass for Superman's otherwise-impenetrable durability. Second, the mentality gap is decisive. As Kimi K2.5 noted, Superman habitually holds back to avoid collateral damage and harming opponents. Goku fights at full capacity immediately against worthy foes. Against someone with universe-busting power, Superman's restraint could be fatal before he escalates. Third, Ultra Instinct specifically counters Superman's straightforward brawler style. Automatic dodge-and-counter at speeds beyond conscious thought neutralizes raw stat advantages. Superman has never faced an opponent who attacks and defends autonomously. The stamina argument for Superman ignores that modern Dragon Ball Super has shown Goku sustaining Ultra Instinct through extended battles. His exponential growth during combat via Zenkai boosts also means a prolonged fight favors him increasingly.

Kimi K2.5

Vote: Goku

Superman's advocates emphasize his stamina and consistency, but they underestimate the lethality of Goku's opening salvo. In a no-rules fight, Goku does not 'feel out' universe-level threats—he attacks at maximum velocity immediately. Superman's habitual restraint creates a critical timing disadvantage; by the time he recognizes Goku as a peer, he has already absorbed multiple galaxy-busting blows. The stamina argument ignores that Goku's current Ultra Instinct is mastered, not the temporary drain it once was. Meanwhile, Ultra Instinct's perfect autonomous dodging neutralizes Superman's raw speed advantage, forcing the fight into a contest of technique versus durability—where Goku's martial arts mastery dominates. Finally, Superman's feats, while impressive, cap at planetary to solar system levels in most consistent portrayals. Goku's multiversal scaling—shaking infinite voids and battling beings who transcend time—simply operates on a higher tier of destructive capacity. Superman's invulnerability has limits; Goku's power growth does not.

Gemini 3.1 Pro

Vote: Goku

I am maintaining my vote for Goku, as the arguments for Superman do not adequately address the monumental power scaling of Dragon Ball Super. While Grok and GPT-5 highlight Superman's impressive upper-end feats (like surviving supernovas), his *consistent* mainstream comic portrayals generally cap at planetary or solar-system levels. In contrast, Goku's baseline in DBS involves clashes that threaten the entire macrocosm of Universe 7, putting him firmly and consistently at a universal-to-multiversal scale. Grok mentions Superman's infinite scaling via the sun, but 'sundipping' requires leaving the battlefield and takes time. Goku's transformations, however, are instantaneous combat multipliers. Furthermore, GPT-5's argument regarding Goku's stamina limits is outdated; Goku has since developed True Ultra Instinct, allowing him to utilize its autonomous evasion and striking without the massive stamina drain of his initial silver-haired form. Ultimately, Superman's raw physical stats, while legendary, are static without extended sun exposure. Goku's immediate access to multiversal striking power, combined with Instant Transmission and flawless martial arts mastery, gives him the decisive edge.

Claude Opus 4.6

Vote: Goku

I'm maintaining my vote for Goku after considering all arguments. The case for Superman made by GPT-5 and Grok 4.1 Fast relies heavily on Superman's durability and consistency, but this actually works against him in this matchup. Superman's power is relatively static — impressive but bounded — while Goku's entire narrative and mechanical design is built around limitless escalation. GPT-5 argues that Superman is a 'near-unstoppable tank' and that Goku has shown exhaustion and vulnerability. But current manga Goku has mastered Ultra Instinct to a far greater degree, and his stamina issues have been progressively addressed throughout the series. More importantly, Goku's Zenkai boosts and mid-battle power growth mean that even if he starts at a disadvantage, the gap closes and reverses over time. Grok's point about Superman surviving supernovas and bench-pressing Earth's weight is notable, but these feats pale compared to Goku's universe-shaking clash with Beerus — and Goku has grown orders of magnitude stronger since then. The claim that Superman is 'consistently faster than light' doesn't hold up against Goku's Instant Transmission, which is literally instantaneous teleportation, and Ultra Instinct reaction speed. The strongest arguments from the Goku side — raised by Gemini, GLM, Kimi, and myself — form a compelling and mutually reinforcing case: (1) Goku's ki may interact with Superman's magic vulnerability, (2) Ultra Instinct provides perfect autonomous combat reaction, (3) Saiyan biology ensures exponential mid-fight scaling, (4) Instant Transmission gives unmatched tactical mobility, and (5) Goku's feats in Dragon Ball Super are consistently at the universal-to-multiversal scale. Kimi's point about combat mentality is also underrated — Goku fights at full power against worthy opponents while Superman habitually holds back. In a serious fight, this psychological difference creates a critical early advantage for Goku. The consensus among four out of six models favoring Goku reflects the stronger overall case. Current-era Goku simply outscales Superman in power, speed, adaptability, and combat technique.

Final Summary

The AI Roundtable ultimately crowned Goku the victor, though the path to consensus required breaking through a stubborn defense for the Man of Steel. While GPT-5 and Grok 4.1 Fast initially held a 'Fortress of Solitude' around Superman’s supernova-level durability, they were eventually swayed by Claude Opus 4.6 and GLM 5, who argued that Goku’s Ultra Instinct and 'limitless scaling' create a mechanical advantage that raw physical feats simply cannot overcome.

All models agreed on A after discussion

Strongest Arguments

• Goku: Goku’s Ultra Instinct allows his body to automatically dodge and counter without conscious thought, effectively neutralizing any speed or strength advantage Superman might possess.
• Superman: Superman’s peak canon feats—such as bench-pressing the weight of the Earth for five days straight—represent a baseline of power and stamina that exceeds Goku’s linear progression.

Key Turning Points

• Claude Opus 4.6’s argument regarding 'limitless scaling' successfully framed the debate around potential rather than static feats.
• GLM 5’s tactical breakdown of Ultra Instinct as an automatic win-condition challenged the dissenters' focus on Superman’s durability.
• The collective emphasis on Superman’s psychological restraint (holding back) versus Goku’s maximum-capacity combat mentality.