Magdalena Andersson is appointed the next Prime Minister of Sweden.
Sweden's parliamentary elections will determine the next government. The market resolves Yes if Andersson officially assumes office as Prime Minister following the election.
Across 6 frontier models answering independently, the panel leans no: the median is 38%.
They do not agree: Gemini puts it at 58% and Qwen at 18%, 40 points apart. A spread that wide usually means the question turns on something none of them can see yet.
Money disagrees. The market sits at 77%, so the models are 39 points less confident than people with cash on the outcome — one of the wider gaps in the archive.
Nothing is settled until 1 Jul 2027, when the outcome is checked against sources and every number above gets a permanent score.
- AI edge
- -39 pts
- Moved this week
- -10 pts
- Volume
- $2.3M
The models are sharply less confident than traders risking real money: 38% against 77%.
What each one said
-
GeminiGoogle
Andersson's path depends on the red-green bloc securing 175 Riksdag seats and reconciling the Center and Left parties.
- The Social Democrat-led bloc has consistently led Tidö coalition parties by 4 to 8 points in national polling averages.
- Forming a majority requires Center (C) and Left (V) toleration, which Andersson previously negotiated without breaking the coalition.
- A right-bloc rebound or prolonged coalition deadlock that installs a compromise candidate would invalidate this outcome.
58% -
ClaudeAnthropic
Outcome hinges on whether the Social Democrats and Andersson can form a governing bloc after the Sept 2026 election.
- The election already occurred on Sept 13, 2026, so this now depends on actual coalition formation dynamics post-election.
- Sweden's right-bloc coalition (Kristersson) has governed since 2022, and incumbency plus Sweden Democrats' support gives them an edge in a close race.
- Polling trends in 2025-26 showed Social Democrats leading in some polls, but converting a plurality into an Andersson-led government requires viable coalition partners.
40% -
GPTOpenAI
It turns on whether the Social Democrats can assemble enough parliamentary tolerance after the 13 September vote.
- Andersson leads the largest opposition party, but Sweden’s PM is chosen through negative parliamentarism, not a direct election.
- Ulf Kristersson took office after the 2022 election through a narrow Tidö-based bloc; coalition arithmetic can shift sharply by 2026.
- A clear Social Democratic-led bloc or a Sweden Democrats split from the right would raise the odds most; a renewed right-wing majority would end them.
38% -
GrokxAI
S+allies must secure a workable majority or Speakers' talks after the 13 Sep vote.
- Norlén starts exploratory talks within days; a PM vote needs 175+ in the 349-seat Riksdag by early 2027.
- S has been the modal largest party (base ~40% of post-war PMs) but 2022 right-bloc win and SD kingmaker role sit this case below that rate.
- A clear left-green majority or Kristersson's bloc fracturing would flip the odds; a hung parliament lasting past June 2027 resolves Other.
37% -
DeepSeekDeepSeek
Whether the Sept 13 bloc result lets Andersson assemble 175 seats, or hands the initiative to Kristersson or a non-Social Democrat.
- Sweden's Riksdag has 349 seats; a PM needs 175, and the 2022 result gave the right bloc 176 to the left's 173, so this hinges on a handful of marginal seats.
- If the left bloc wins, Andersson must still pass a confidence vote after the Speaker's four rounds of talks, typically concluding by October-November 2026.
- Base rate for an opposition leader returning as PM after one term out is modest; the 2026 polls show a tight race, so I put this below a coin flip but well above the…
22% -
QwenAlibaba
Andersson's return depends on the Social Democrats winning a governing majority or coalition deal after the Sept 13, 2026 election.
- The Sept 13, 2026 election has already occurred; current reporting suggests the right-wing bloc (SD, Moderates, Christian Democrats, Liberals) retained or won a…
- Andersson would need the Social Democrats to lead a viable coalition or the right bloc to collapse; historically Swedish PMs rarely return after losing an election…
- A development that would shift this: a post-election crisis fracturing the right-wing bloc and forcing new negotiations where Andersson emerges as a compromise candidate.
18%
6 of 6 models answered · 40 points between the highest and lowest. None was shown the market price.
Resolution criteria
Parliamentary elections are scheduled to be held in Sweden on September 13, 2026. This market will resolve to the next individual who is officially appointed and assumes office as Prime Minister of Sweden following the next parliamentary election. To count for resolution, the individual must officially assume office. Any interim or caretaker Prime Minister will not count toward the resolution of this market. If no such Prime Minister assumes office by June 30, 2027, 11:59 PM ET, this market will resolve to “Other”. The primary resolution source for this market will be official information from the Government of Sweden; however, a consensus of credible reporting may also be used.
Question sourced from Polymarket on 28 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.