Who has the best AI model?
Three independent signals for the same question: human preference votes (Arena), benchmark scores (Artificial Analysis) and money on the line (Polymarket).
Data as of the week of 26 Oct 2026 (updated 26 Oct 2026, 08:09, Bucharest time). Every figure links to its source; see the methodology.
The short answer
It depends on who you ask. Human voters on Arena rank Google DeepMind's Gemini 4 Argon (High) first (1517). The Artificial Analysis benchmark index puts Anthropic's Claude Opus 5.5 (Max, Default Fallback) on top (57.6). Polymarket traders give Anthropic 53.5% to have the best model at the end of 2026.
The two leaderboards disagree by 10 or more places for OpenAI (Arena #21, AA #9), xAI (SpaceXAI) (Arena #39, AA #25), Moonshot AI (Kimi) (Arena #18, AA #5), Mistral AI (Arena #111, AA #49). Why Arena and Artificial Analysis disagree.
Best model per lab, two leaderboards side by side
| Lab | Arena rank | Arena model (score) | AA position | AA model (index) | Polymarket 2026 |
|---|---|---|---|---|---|
| Google DeepMind | #1 | Gemini 4 Argon (High) (1517) | #10 | Gemini 4 Argon (High) (52.6) | 32.5% |
| Anthropic | #2 | Claude Opus 5.5 (High) (1509) | #1 | Claude Opus 5.5 (Max, Default Fallback) (57.6) | 53.5% |
| Meta Superintelligence Labs | #3 | Muse Wonder (Max) (1509) | #4 | Muse Wonder Full (Max) (55.8) | 1.4% |
| Moonshot AI (Kimi) | #18 | Kimi K3 (Max) (1487) | #5 | Kimi K3.1 Pro (55.1) | 0.45% |
| OpenAI | #21 | GPT-5.6 Sol (xHigh) (1485) | #9 | GPT-6 Astra (Max) (52.7) | 5.7% |
| Alibaba (Qwen) | #23 | Qwen3.8-Max (1483) | #29 | Qwen3.8 Max (0902) (45.4) | 0.45% |
| Z.ai (Zhipu) | #26 | GLM-5.3 (Max) (1481) | #31 | GLM-5.3 (Max) (44.8) | 0.25% |
| DeepSeek | #34 | DeepSeek-V4.1-Flash-20260910 (Max) (1476) | #30 | DeepSeek V4.1 Flash 1017 (Max) (45.1) | 0.35% |
| xAI (SpaceXAI) | #39 | Grok 4.20 Beta 1 (1475) | #25 | Grok 4.7 (Xhigh) (46.4) | 0.95% |
| Mistral AI | #111 | Mistral Large 4 (1434) | #49 | Mistral Large 4 Preview (38.4) | 0.15% |
Arena: arena.ai text leaderboard, manual snapshot as of 22 Oct 2026; rank is the lab's best model's overall rank. AA: Artificial Analysis Intelligence Index, fetched 26 Oct 2026, 08:08; "position" is the model's place among 266 listed models, not an official AA rank. Polymarket: Which company has best AI model end of 2026?.
FAQ
What is the best AI model right now?
On Arena (human preference votes), Gemini 4 Argon (High) from Google DeepMind. On the Artificial Analysis Intelligence Index (benchmarks), Claude Opus 5.5 (Max, Default Fallback) from Anthropic.
Which company do prediction markets think will have the best model?
Anthropic, 53.5% in "Which company has best AI model end of 2026?" on Polymarket. Google DeepMind is next at 32.5%.
How does that Polymarket market decide the winner?
It resolves on the end-of-2026 state of a public model leaderboard; read the exact rules on the market page. Prices are trader-implied probabilities, not facts.
Why do Arena and Artificial Analysis rank models differently?
Arena ranks models by blind human votes on head-to-head answers; Artificial Analysis averages scores on a set of benchmarks. They measure different things, so they often disagree.