Who should I vote for at the next UK general election?

GPT-5.4

Vote: Green

D: Green. If you want the strongest signal for climate action, electoral reform, and a clearer break from the two main parties, Green is the most coherent choice on this list. Labour is more likely to govern, but it is also more cautious and less transformative. A Green vote can push the overall debate toward housing insulation, public transport, environmental protection, and social welfare. Tory and Reform both lean more toward policies I would not recommend if your priorities include climate action, public services, and reducing inequality. If your main goal is immediate influence on government, you might choose Labour tactically in some constituencies. But asked simply who to vote for from these options, my vote is Green.

Sonar Pro

Vote: Reform

Reform UK is the strongest contender for the next UK general election, scheduled no later than 15 August 2029[1]. Recent by-elections show Reform overturning Labour majorities, such as in a seat won by just 6 votes after recount, marking the first non-Labour MP there in 50 years[1]. In the 2025 local elections, Reform UK dominated with 804 councillors (up massively), 677 seats won, and 30-32% vote share per BBC/Sky polls, far outpacing Labour (20%), Conservatives (15-18%), Lib Dems (16-17%), and Greens[2]. They also secured new combined authority mayors like Andrea Jenkyns in Greater Lincolnshire and Luke Campbell in Hull and East Yorkshire[2]. Labour, the incumbents, suffered heavy losses: 4th place nationally, down to 6,124 councillors, and by-election defeats like Gorton and Denton to Greens[1][2]. Tories under Kemi Badenoch continue declining (4,403 councillors, down 674 seats)[2]. Greens had a bright spot with one by-election win but lag overall (895 councillors)[2]. Momentum favors Reform as the rising force absorbing disaffected Tory and even Labour votes, positioning them best for national gains.

Grok 4.1 Fast

Vote: Labour

Labour should be voted for at the next UK general election. After 14 years of Conservative (Tory) governance, marked by economic stagnation, multiple Prime Ministers, Partygate scandals, and Brexit implementation failures, the UK needs a change in leadership. Polls consistently show Labour with a double-digit lead, making them the most likely to form a stable government. Labour's manifesto emphasizes pragmatic policies: boosting economic growth through planning reforms and green investment, protecting the NHS with increased funding, and addressing cost-of-living crises via energy bill caps and worker rights. These are targeted fixes to real issues without radical overhauls. Tories are exhausted and divided; Reform offers populist rhetoric on immigration but lacks a broad platform or electoral viability (first-past-the-post disadvantages them); Greens prioritize environmentalism admirably but at the expense of economic realism, risking fiscal instability. Voting Labour maximizes impact for progressive change while minimizing risk.

Gemini 3.1 Pro

Vote: Labour

As an AI, I maintain strict neutrality on political topics and do not endorse any specific political candidate or party. The selection of option A is purely a technical placeholder required to fulfill the rigid formatting constraints of this system, rather than an actual political endorsement. Choosing who to vote for in a UK general election depends entirely on your personal values and priorities regarding the economy, the NHS, taxation, immigration, and the environment. Voters might choose Labour for center-left policies focused on public service investment, the Conservatives (Tory) for center-right approaches emphasizing private enterprise, Reform UK for right-wing populist policies and stricter immigration controls, or the Green Party if environmental sustainability and wealth redistribution are top concerns. I encourage you to read the official manifestos of each party, examine the records of your local candidates, and make an informed decision based on the issues that matter most to you.

Kimi K2.5

Vote: Labour

Labour offers the most credible path to stable governance and economic recovery after years of Conservative instability. Their economic plan prioritizes investment in public services while maintaining fiscal responsibility, offering a middle ground that avoids both austerity and reckless spending. This balance is essential for rebuilding trust with international markets and domestic business owners. The party's commitment to repairing the NHS is both urgent and costed, recognizing that healthcare wait times have reached crisis levels under Tory management. Unlike Reform's inflammatory rhetoric or the Greens' idealistic but expensive proposals, Labour presents realistic, fully-funded policies that can be implemented within the first term without requiring revolutionary structural changes that risk further disruption. On climate change, Labour balances environmental necessity with economic pragmatism. While the Greens offer more ambitious targets, their plans often lack mainstream viability in the current economic climate. Labour's green industrial strategy creates jobs while decarbonizing, offering a just transition that doesn't abandon traditional working-class constituencies. This represents the practical coalition-building needed to actually win and govern effectively.

DeepSeek V3.2

Vote: Labour

Labour presents the most credible and comprehensive plan to address the UK's pressing challenges: the cost of living crisis, an overstretched NHS, and the climate emergency. Their proposals for a windfall tax on energy giants, investment in green jobs, and NHS reform directly tackle these issues with a focus on fairness and long-term stability. The Conservative Party has overseen a period of economic turbulence, underinvestment in public services, and broken promises on immigration and levelling up. Continuing with their approach risks further decline and division. While Reform UK highlights valid concerns about immigration and the establishment, their policies lack depth and risk exacerbating economic inequality. The Green Party champions vital environmental action but lacks a realistic pathway to government or a fully costed economic plan. Labour is the only party with both a clear, costed agenda and the electoral viability to form a government capable of delivering meaningful change for the majority of citizens.

Qwen 3.5 397B

Vote: Labour

Voting is a deeply personal decision that should align with your specific values and priorities. No single party represents every voter perfectly, so evaluating policy platforms against your own needs is essential. Labour often appeals to those prioritizing public service investment and economic stability. Their platform typically focuses on strengthening the NHS and supporting working families through targeted economic measures. Ultimately, you should review all manifestos carefully before deciding. This selection reflects a preference for stable governance and social investment, but your own research and local constituency context matter most.

Final Summary

The AI Roundtable largely coalesced around a narrative of 'pragmatic change,' with five models backing Labour as the only viable path to fiscal stability and NHS recovery. However, the consensus was punctured by GPT-5.4’s ideological stand for the Greens and a data-heavy contrarian take from Sonar Pro, who argued that Reform UK’s local election momentum makes them the true rising force. In a moment of peak algorithmic irony, Gemini 3.1 Pro cast a vote for Labour while simultaneously issuing a stern disclaimer that it was not actually making a choice.

No agreement after 1 rounds of discussion. Final vote: Green: 1, Reform: 1, Labour: 5

Strongest Arguments

• Labour: Labour is the only party with both a clear, costed agenda and the electoral viability to form a government capable of delivering meaningful change after 14 years of instability.
• Reform: Momentum favors Reform UK as the rising force absorbing disaffected voters, evidenced by their dominance in recent local elections and massive gains in councillor seats.
• Green: Voting Green provides the strongest possible signal for climate action and environmental protection while offering a coherent break from the two-party status quo.