Burkov: OpenAI's Luna seems deliberately weak as a multi-step agent

burkov · x · 2026-10-12

ML author Andriy Burkov claims OpenAI's Luna appears to have been deliberately trained not to act well as an agent. It excels at one-shot requests—he moved his product ChapterPal entirely from Gemini Flash to Luna—but cannot handle problems requiring multi-step, iterative tool-call sessions that drive a harness.

He frames this as a training choice rather than a capability gap. The claim is personal observation and unconfirmed.

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