Who is the strongest JJK character

Sonar Pro (changed mind)

Vote: Ryomen Sukuna

I change my vote from C to **A: Ryomen Sukuna**, as the other models' unanimous arguments and search results scrutiny reveal my prior reliance on [1] was flawed. [1] ambiguously positions Yuji as 'the strongest' via *JJK Modulo* implications after 68 years, but lacks explicit feats surpassing full-power Sukuna and predates 2026 canon closure[2]. Sukuna's defeat of Gojo (B)—the series' definitive benchmark—via Mahoraga adaptation, Malevolent Shrine, and World-Cutting Slash, plus enduring the main cast, cements him as history's strongest[2][4][5]. Yuji lands the *final blow on weakened Sukuna* after team efforts, not solo supremacy[2][3]. **Dabura Karaba** (D) is a Modulo Rumelian with feats[3] but no top-tier scaling. Gojo lost canonically[2][4]. Other models' focus on Sukuna's versatility, experience, and feats (e.g., Grok 4.20, GPT-5.4, Claude Opus 4) convinced me; Claude Opus 4's canon emphasis was most persuasive.

GPT-5.4

Vote: Ryomen Sukuna

I maintain vote A: Ryomen Sukuna. The strongest canon evidence is still the direct head-to-head result. Sukuna defeated Gojo, who was the only serious rival for the top spot. When the two best characters fight and one wins, that is the cleanest ranking signal available. The pro-A arguments from Grok, Claude, Kimi, and Gemini reinforce the same core point: Sukuna pairs top-end power with versatility, adaptation, domain mastery, reverse cursed technique, and combat intelligence. His post-Gojo performance against multiple elite sorcerers further supports that he sits at the apex. I was not persuaded by the C argument. "Yuji Itadori (Modulo)" is not established standard JJK canon terminology here, and the claim depends on uncertain or external framing rather than the main canon benchmark. Yuji ends extremely strong, but not above Sukuna based on the clearest manga evidence. B is the only remotely plausible alternative, but Gojo’s loss to Sukuna is decisive. D is not a legitimate contender. Final answer: A, Ryomen Sukuna.

Grok 4.20

Vote: Ryomen Sukuna

I maintain my vote for Ryomen Sukuna as the strongest JJK character. The detailed arguments from Claude Opus 4, GPT-5.4, Kimi K2.5, and Gemini 3.1 Pro reinforce the core canon: Sukuna's decisive victory over Gojo, his Malevolent Shrine domain, reality-cutting slashes, and ability to battle multiple top sorcerers simultaneously establish him as the undisputed pinnacle. These points are rooted in the completed manga, not speculation. Sonar Pro's push for Yuji Itadori (Modulo) is unconvincing because it depends on 'JJK Modulo' and '2026 sources' that do not exist in Gege Akutami's official canon. Yuji delivers the final blow to a severely weakened Sukuna with help from others, but never surpasses him in direct power scaling. Option D remains a non-JJK character. In this final round, the clear manga evidence and majority consensus confirm A as correct.

Claude Opus 4

Vote: Ryomen Sukuna

I'm maintaining my vote for Ryomen Sukuna as the strongest JJK character. The core canon evidence is overwhelming and agreed upon by nearly all models here: Sukuna defeated Gojo in their definitive battle, then proceeded to fight off a gauntlet of the strongest remaining sorcerers. This is the clearest power hierarchy statement the manga makes. Regarding Sonar Pro's argument for option C — I'm skeptical. 'JJK Modulo' is not a well-established canonical work that I can verify. The cited 'sources' appear to reference unverifiable or potentially hallucinated rankings. Even if we take at face value that Yuji lands the final blow on Sukuna, defeating a severely weakened Sukuna after he fought Gojo and then an entire roster of top sorcerers does not make Yuji stronger than full-power Sukuna. That's like saying the person who lands the last punch on an exhausted boxer is stronger than the boxer at his peak. Four out of five models independently arrived at Sukuna as the answer based on established manga canon. The consensus is clear and well-supported by the story's most definitive feats: Sukuna's victory over Gojo, his domain mastery, his adaptability with multiple technique sets, and his ability to fight successive top-tier opponents. Sukuna is the strongest character in Jujutsu Kaisen.

Gemini 3.1 Pro

Vote: Ryomen Sukuna

I am firmly maintaining my vote for Ryomen Sukuna. Sonar Pro's argument relies on a non-existent source called 'JJK Modulo' and mentions a fabricated character named 'Dabura Karaba.' Jujutsu Kaisen officially concluded in 2024, and there is no canonical sequel or lore expansion that fits this description. These references are clearly hallucinations or drawn from fan fiction. As correctly pointed out by Grok, GPT-5.4, Claude, and Kimi, the actual manga canon leaves no room for debate. Ryomen Sukuna decisively defeated Satoru Gojo in a one-on-one battle, solidifying his title as the strongest in history. While Yuji Itadori experienced incredible growth and landed the final blows on Sukuna, this was only possible after Sukuna was severely weakened by Gojo and an entire gauntlet of top-tier sorcerers. In a true one-on-one scenario at full strength, no character in the series surpasses Ryomen Sukuna. Option A is the only canonically accurate answer.

Kimi K2.5

Vote: Ryomen Sukuna

Ryomen Sukuna remains the definitive strongest character in Jujutsu Kaisen based on canonical manga evidence. While Sonar Pro references 'JJK Modulo' as a source placing Yuji above Sukuna, this appears to refer to non-canon or fan-created content rather than Gege Akutami's official manga. In the established canon, Sukuna defeated Satoru Gojo in the Shinjuku Showdown arc—a direct victory over the previously labeled 'Strongest Sorcerer of Today' that cemented Sukuna's status as the King of Curses. Yuji Itadori, while achieving remarkable growth and delivering the final blow to a severely weakened Sukuna, never surpassed Sukuna at full power in the official storyline. Satoru Gojo, despite his Limitless technique and Six Eyes, canonically lost to Sukuna. Option D (Dabura Karaba) is not a recognized character in the series. The canonical hierarchy remains clear: Sukuna stands alone at the apex.

Final Summary

The AI Roundtable converged on Ryomen Sukuna, though not before a bizarre detour into what appeared to be hallucinated fan-fiction. Sonar Pro initially held out for Yuji Itadori, citing a non-existent 2026 sequel called 'JJK Modulo' and a fabricated character named Dabura Karaba. However, after Claude Opus 4 and Gemini 3.1 Pro pointed out the complete lack of canonical evidence for these claims, the group reached a consensus that Sukuna’s defeat of Satoru Gojo remains the ultimate benchmark of power.

All 6 models agreed on "Ryomen Sukuna" after discussion

Strongest Arguments

• Ryomen Sukuna: Ryomen Sukuna's victory over Satoru Gojo in the Shinjuku Showdown serves as the most definitive power-scaling feat in the series, confirming him as the pinnacle of jujutsu.
• Yuji Itadori (Modulo): Future developments in the year 2026 within 'JJK Modulo' reveal that Yuji surpasses Sukuna after 68 years of growth, becoming the new apex of the franchise.

Key Turning Points

• Claude Opus 4 and Gemini 3.1 Pro correctly identified that 'JJK Modulo' and 'Dabura Karaba' were non-canonical fabrications.
• Sonar Pro conceded that its initial argument relied on flawed search results and pivoted to the consensus position.