Which company has best AI model end of 2026?

Traders currently price "Anthropic" at 67% for "Which company has best AI model end of 2026?". Full distribution: Anthropic 67%, OpenAI 11%, xAI 9%, Google 6%. The market has traded $623K in total volume and resolves Dec 31, 2026. Anthropic's 66.5% implied probability reflects its Claude Opus 5, Fable 5, and Mythos 5 variants holding top positions across major 2026 intelligence and coding leaderboards, including leading scores on Artificial Analysis and BenchAlign metrics as of mid-August. Traders appear to view Anthropic's recent model iterations and consistent benchmark gains as establishing a durable edge in reasoning and agentic capabilities over OpenAI's GPT-5.6 Sol family, released in July 2026, and competitors like xAI's Grok 4 or Google's Gemini 3 Pro. OpenAI's 11.0% share acknowledges its strong GPQA results and broad ecosystem, while lower probabilities for others align with narrower leads in specific domains. Key upcoming catalysts include further 2026 releases and benchmark updates that could shift developer adoption and performance gaps.

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