people · May 16, 2026
Sarah Wooders Reveals Letta AI Internal Agents Running on GLM 5.1
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Sarah Wooders, co-founder and CTO at Letta AI, posted on May 13, 2026 that the company's effective review bot built with Letta Code runs on GLM 5.1 rather than GPT 5.5 or Opus 4.7. Letta AI develops memory-first AI agents that learn from experience. The post received 522 likes and highlighted model-agnostic capabilities of Letta Code. This aligns with Letta's April 6, 2026 launch of the Letta Code app for local machine use.
Spend governor blocked model creation: provider_circuit_open (lane=dev, provider=together)