Workers AI models now require paid plan for certain resource-intensive models
Three resource-intensive AI models (Kimi K2.6, Kimi K2.7-code, and GLM 5.2) now require the Workers Paid plan instead of being available on the free tier. This change improves reliability and reduces capacity errors for all users, while many other models remain available on the free plan.
We are limiting Workers Free plan access to a few resource-intensive models so we can prioritize capacity for the broader Workers AI user base. This helps everyone get a more reliable inference experience, with fewer 429 and 3040 (Out of Capacity) errors.
The following models now require the Workers Paid plan:
On the Workers Free plan, requests to these models now return a 403 HTTP error (internal error 5035) prompting you to upgrade. The Workers Paid plan starts at $5 per month and still includes the 10,000 free Neurons per day allocation, with usage beyond that billed at each model's pricing.
Many models remain available on the Workers Free plan, including:
For the full list, refer to the Workers AI model catalog.
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