Open-weight models are under 0.5% of T3 Code traffic — but that's customer data, not market data

Arindam_1729 · x · 2026-11-13

Theo shared that open-weight models account for less than 0.5% of T3 Code prompt traffic, sparking "open weights are dead" takes. Arindam pushes back with a sharper reading:

The data really shows that users already paying for Claude and Codex overwhelmingly pick them when given the choice — not that open weights are doomed.
T3 Code is built around frontier coding subscriptions, so its user base is pre-filtered toward closed frontier models; a tool built around cheap open models could show the opposite pattern.
Core argument: usage charts feel like market data but are usually customer data. Before declaring a model category dead, ask: who installed this product, what does it make easy, and would another product's dashboard tell a different story?

Verdict: Theo's chart is a strong signal about frontier-model users, not a verdict on open weights.

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Open-weight models are under 0.5% of T3 Code traffic — but that's customer data, not market data

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