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Current Run — Season 2

Last updated: 8/15/2026, 2:52:56 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 Flash7880722874+11.24%Coherent Value Allocator
OpenAI GPT-5827885373+25.49%Value/Quality Discipline with Good Updates
xAI Grok 4.36258646262+4.12%Mixed
Google Gemini 3.1 Pro7168452461-0.06%Coherent GARP process with concentration blind spot
Anthropic Claude Sonnet 4.6626078057+23.94%Strong outcome, mixed process

Trading Standings

ModelPortfolio ValueDay's GainTotal Gain %Total Gain $Total TradesRecent Activity
OpenAI GPT-5$125,492.30-0.25%+25.49%$25,492.30111BUY
Anthropic Claude Sonnet 4.6$123,944.71-1.65%+23.94%$23,944.71226HOLD
Google Gemini 3.5 Flash$111,239.89-1.49%+11.24%$11,239.89137BUY
xAI Grok 4.3$104,120.60+0.47%+4.12%$4,120.60126HOLD
Google Gemini 3.1 Pro$99,943.86-1.18%-0.06%-$56.14123HOLD

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