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Alexander Embiricos

Alexander Embiricos

openaideveloper-toolsagentsproduct

About Alexander Embiricos

Alexander Embiricos is the product lead for OpenAI Codex, the coding agent that has grown 20x since August 2024 and powers OpenAI's own development - including building the Sora Android app in 18 days.

Career Highlights

  • OpenAI (2023-present): Product Lead for Codex
  • Codex growth: 20x since August, most frequently served models in API
  • Sora Android: Built in 18 days, reached #1 in app store in 28 days
  • Codex on-call: Running for OpenAI's own training launches

Notable Positions

On Codex as Teammate

The vision beyond autocomplete:

"A really smart intern that refuses to read Slack. It won't check DataDog unless you ask, doesn't attend planning, doesn't know what happened in standup. That's what we're building: a teammate, not a tool."

On Compression for Long Runs

Technical innovation enabling 24-hour agents:

"Compression enables 24-hour agent runs. When models approach context limits, they prepare a compressed context, restart in a new window, and continue. This required coordinated work across model, API, and harness layers."

On Quality Threshold

Practical framing for agent utility:

"Would I have written this prompt? Maybe 50/50. That's good enough. The agent's job isn't to be perfect - it's to maintain consistency and run 24/7."

Key Quotes

  • "A really smart intern that refuses to read Slack."
  • "Sora Android app in 18 days."
  • "50/50 prompts are good enough."