Available Models
Speeds listed are averages, not guarantees; a dash means the model has not been benchmarked yet. Actual evaluation time also depends on prompt length and the amount of data available to the model during each run.
What that costs in practice: with GPT-6 Luna, a strategy that checks one market every hour costs about 2 cents a day, and one that checks every minute costs about $0.06 an hour (each check costs the model’s price once for the strategy plus once per market). The Preview tab shows the expected cost of any strategy before you submit it.
Evaluation Frequency Limit
Strategies with an evaluation frequency of 15 seconds or less can only use
GPT-4.1-nano. This restriction ensures evaluations complete fast enough to keep up with the chosen frequency.Choosing the Right Model
Different strategies call for different models. Use the guidance below as a starting point:Most Strategies
GPT-6 Luna is the default: tuned for trading and inexpensive at $0.0005 per evaluation, typically answering in 2–5 seconds. Start here unless you have a specific reason to switch.
Lowest Cost
GPT-5-nano with minimal reasoning has the lowest cost per evaluation, at the price of a few seconds per check. It suits strategies that check infrequently.
More Analytical Power
GPT-5-mini with medium or high reasoning provides deeper market analysis. Use it for complex prompts where reasoning quality matters more than speed or cost.
High-Frequency (15s or Less)
GPT-4.1-nano is the only model available for strategies with an evaluation frequency of 15 seconds or less.