--- title: "Google overtakes Anthropic in near-term AI model market as midterms volume surges" description: "Google passed Anthropic in the end-of-October AI market after launching Gemini 4 Argon, while 2026 midterm prediction volumes tripled on a deepening Democratic lead." canonical_url: https://betcrypto.now/news/2026-10-02-google-overtakes-anthropic-in-near-term-ai-model-market-as published_at: 2026-10-02T23:23:16+00:00 language: en publisher: BetCrypto content_type: ai-generated generated_by: "claude-sonnet-4-6" source_data: https://betcrypto.now (live prediction-market prices) events: - title: "2026 Midterms: Congress Balance of Power? — For Feb 2027" url: https://betcrypto.now/events/2026-midterms-congress-balance-of-power-for-feb-2027 - title: "Brazil Presidential Election" url: https://betcrypto.now/events/brazil-presidential-election - title: "Which company has the best AI model end of October?" url: https://betcrypto.now/events/which-company-has-the-best-ai-model-end-of-october - title: "Which company has best AI model end of 2026?" url: https://betcrypto.now/events/which-company-has-best-ai-model-end-of-2026 --- # Google overtakes Anthropic in near-term AI model market as midterms volume surges _Google passed Anthropic in the end-of-October AI market after launching Gemini 4 Argon, while 2026 midterm prediction volumes tripled on a deepening Democratic lead._ Anthropic's lead in the end-of-October AI market collapsed after Google released Gemini 4 Argon. Political markets in the US and Brazil drew heavy volume ahead of their elections. ## Democratic sweep odds hold firm as Senate data sharpens The Democrats Sweep outcome held at 63.0% even as the split-control scenario — Republican Senate, Democratic House — nudged up 1.7 points to 29.5%, drawing $931,045 in large trades over seven days. The move tracks fresh polling: Nate Silver's generic-ballot tracker hit D +9.0 as of October 2, a cycle high, while Fox News surveys show Democrats leading in Texas, Iowa, and Michigan Senate races. Volume on Kalshi and Polymarket combined exceeded $43 million, reflecting genuine uncertainty about whether Democrats can flip the Senate alongside an increasingly comfortable House path. | Outcome | 7 days ago | Now | Change | | --- | --- | --- | --- | | R Senate, D House | 27.8% | 29.5% | +1.7 pts | 24h volume $2,765,906 · 3 platforms · 32 large trades totalling $931,045 (7d). [Compare live odds for 2026 Midterms: Congress Balance of Power? — For Feb 2027](/events/2026-midterms-congress-balance-of-power-for-feb-2027) ## Brazil first-round vote drives volume spike to $3 million With Brazilians heading to the polls on October 4 for the first round, 24-hour volume jumped to $3,122,789 — a 455% weekly increase — even as Flávio Bolsonaro's consensus probability slipped a modest 0.6 points to 56.8%. Final-week polling showed Bolsonaro and Lula statistically tied in runoff simulations, with Datafolha putting the second round at 47–45 for Lula; markets price Bolsonaro as the narrow favourite heading into what is almost certainly an October 25 runoff. The 3.5-point cross-platform spread on Lula's odds between Polymarket and other venues is the widest gap in the market. | Outcome | 7 days ago | Now | Change | | --- | --- | --- | --- | | Flávio Bolsonaro | 57.4% | 56.8% | -0.6 pts | 24h volume $3,122,789 · 4 platforms · 35 large trades totalling $509,716 (7d). [Compare live odds for Brazil Presidential Election](/events/brazil-presidential-election) ## Google surges to favourite after Gemini 4 Argon launch Anthropic collapsed 52.3 points to 36.3% while Google rose to 58.2% as the consensus end-of-October favourite, the sharpest single-week swing in this shortlist. The move followed Google's launch of Gemini 4 Argon on September 30. A 7.4-point spread between Polymarket US and Polymarket on the Google outcome reflects how quickly traders on different platforms repriced the news. | Outcome | 7 days ago | Now | Change | | --- | --- | --- | --- | | Anthropic | 88.5% | 36.3% | -52.2 pts | 24h volume $237,344 · 2 platforms · 17 large trades totalling $72,504 (7d). [Compare live odds for Which company has the best AI model end of October?](/events/which-company-has-the-best-ai-model-end-of-october) ## Google's year-end AI odds jump 26.7 points in a week Google's probability for having the best AI model at year-end surged 26.7 points to 36.8%, though Anthropic retained its lead at 52.0%. The move mirrors the end-of-October market reaction to Gemini 4 Argon's launch, with traders reassessing Google's longer-horizon competitiveness. A notable 5.2-point spread on xAI between Polymarket and Polymarket US suggests lingering disagreement about where that company lands by December 31. | Outcome | 7 days ago | Now | Change | | --- | --- | --- | --- | | Google | 10.0% | 36.8% | +26.7 pts | 24h volume $46,972 · 2 platforms · 9 large trades totalling $20,668 (7d). [Compare live odds for Which company has best AI model end of 2026?](/events/which-company-has-best-ai-model-end-of-2026) ## The takeaway Two AI markets and two political markets dominated volume this window, with Google's model launch moving hundreds of thousands of dollars in a single week. Attention and capital are concentrating on events with binary, near-term resolution — Brazil's runoff and the November midterms — while the AI races remain the most volatile markets by probability swing. --- *Corrected on 7 October 2026: we removed sections that misreported game results or price moves, and fixed other errors of fact.* --- Prices quoted above were current when this brief was written. Follow the event links for live cross-platform odds.