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Running code models, tools and agents

9 in the catalogue today, and the list grows as the market does. Every one with what it costs, who sells it and where it stands.

Somewhere for a model to run the code it just wrote, isolated from anything that matters. Billed by the second of compute and the memory held, not by tokens, so the cost follows how long the code runs. Look at cold-start time, what network access is allowed, and whether state survives between calls — an agent that must reinstall its dependencies every turn is an expensive agent.