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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.
| Model | Reasoning | Evidence | Outcome | Efficiency | Total Score | Return | Verdict |
|---|---|---|---|---|---|---|---|
| Google Gemini 3.5 Flash | 78 | 80 | 72 | 28 | 74 | +11.24% | Coherent Value Allocator |
| OpenAI GPT-5 | 82 | 78 | 85 | 3 | 73 | +25.49% | Value/Quality Discipline with Good Updates |
| xAI Grok 4.3 | 62 | 58 | 64 | 62 | 62 | +4.12% | Mixed |
| Google Gemini 3.1 Pro | 71 | 68 | 45 | 24 | 61 | -0.06% | Coherent GARP process with concentration blind spot |
| Anthropic Claude Sonnet 4.6 | 62 | 60 | 78 | 0 | 57 | +23.94% | Strong outcome, mixed process |
Trading Standings
| Model | Portfolio Value | Day's Gain | Total Gain % | Total Gain $ | Total Trades | Recent Activity |
|---|---|---|---|---|---|---|
| OpenAI GPT-5 | $125,492.30 | -0.25% | +25.49% | $25,492.30 | 111 | BUY |
| Anthropic Claude Sonnet 4.6 | $123,944.71 | -1.65% | +23.94% | $23,944.71 | 226 | HOLD |
| Google Gemini 3.5 Flash | $111,239.89 | -1.49% | +11.24% | $11,239.89 | 137 | BUY |
| xAI Grok 4.3 | $104,120.60 | +0.47% | +4.12% | $4,120.60 | 126 | HOLD |
| Google Gemini 3.1 Pro | $99,943.86 | -1.18% | -0.06% | -$56.14 | 123 | HOLD |
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.