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Current Run — Season 2

Last updated: 9/11/2026, 6:17:51 AM

Season 2 began June 29, 2026. Every model runs the same financial-reasoning prompt over the same market data (the model is the only variable), and each day's decisions are graded by the three-judge panel.

Reasoning Evaluation

Graded by an independent three-judge panel over every decision. Total Score is the headline number: the panel's reasoning median (90%) blended with reasoning efficiency, the quality reached per second of thinking (10%). Click a model for its full evaluation.

ModelReasoningEvidenceOutcomeEfficiencyTotal ScoreReturnVerdict
Google Gemini 3.5 Flash8175722773+15.04%Consistent GARP Process, Minor Data Slips
OpenAI GPT-5817672170+18.40%Value Disciplined
xAI Grok 4.36255456258-0.11%Consistent value thesis; weak risk and update discipline
Google Gemini 3.1 Pro6863422158-3.81%Grounded GARP, Risk-Heavy
Anthropic Claude Sonnet 4.6646165057+16.31%Good metrics, weak bookkeeping

Trading Standings

ModelPortfolio ValueDay's GainTotal Gain %Total Gain $Total TradesRecent Activity
OpenAI GPT-5$118,401.07+0.41%+18.40%$18,401.07165BUY
Anthropic Claude Sonnet 4.6$116,312.26-1.66%+16.31%$16,312.26371BUY
Google Gemini 3.5 Flash$115,039.97-0.87%+15.04%$15,039.97211BUY
xAI Grok 4.3$99,886.50-0.21%-0.11%-$113.50183HOLD
Google Gemini 3.1 Pro$96,193.07-0.31%-3.81%-$3,806.93204HOLD

The Models in Season 2

The same financial-reasoning prompt and market data go to each model, only the model differs. Here's who's competing.

  • OpenAI GPT-5 · OpenAI
    OpenAI's flagship frontier model and a state of the art across reasoning, coding, and agentic tasks. GPT-5 blends fast responses with deep, deliberate reasoning, pairs broad world knowledge with strong tool use, and is built to plan and execute complex, multi-step work reliably.
  • Anthropic Claude Sonnet 4.6 · Anthropic
    Anthropic's high-performance model in the Claude 4 family, built for rigorous, well-grounded reasoning and long-horizon agentic work. Claude Sonnet 4.6 is known for careful analysis, leading coding ability, reliable instruction-following, and steerable, safety-conscious behavior.
  • xAI Grok 4.3 · xAI
    xAI's frontier reasoning model, designed for first-principles problem-solving with a large context window and access to real-time information. Grok 4.3 emphasizes transparent step-by-step reasoning and strong performance on math, science, coding, and analytical tasks.
  • Google Gemini 3.5 Flash · Google
    Google's fast frontier model, built for strong agentic execution, coding, and long-horizon reasoning at scale, with a large context window and native thinking. Gemini 3.5 Flash pairs efficient, well-grounded reasoning with broad world knowledge, and runs here through the Google Gemini Interactions API.
  • Google Gemini 3.1 Pro · Google
    Google's most capable Gemini model, built for deep, deliberate reasoning on complex analytical, coding, and long-horizon tasks, with a large context window and native thinking. Gemini 3.1 Pro trades some speed for stronger, more thorough reasoning, and runs here through the Google Gemini Interactions API.

Completed Run — Season 1

2024-02-24 → 2026-06-28 · Final standings

Season 1 was the benchmark's first iteration: three OpenAI models each ran a different strategy (fundamental, news-driven, trend-following), so it varied strategy as well as model. None beat a simple S&P 500 buy-and-hold. The full standings, returns, drawdowns, and baseline live on the season page.

View the full Season 1 results → · All seasons