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OpenAI: The Gold Standard of AI

OpenAI โ€” creators of ChatGPT and the most popular AI providers in the world. Their models (GPT-5, o1, o3) are considered the gold standard for text quality and nuance understanding.

2026 Modelsโ€‹

  • GPT-5 / 5.1: Flagship model for the most complex tasks.
  • o1 / o3: Models with "deep thinking" for programming and science.
  • GPT-5 mini: Fast and very cheap model for simple chat bots.

How to Get API Keyโ€‹

  1. Registration: Go to platform.openai.com.
  2. Billing: In Settings -> Billing, link card and make deposit (from $5).
  3. Keys: API Keys section -> Create new secret key.
  4. Limits: In Limits section, you can set expense ceiling to not overspend.

Application Areaโ€‹

Ideally suited for writing high-quality content, analyzing client letters, and creating advanced voice assistants (via Realtime API).

Important

For users from some regions, VPN may be required to access the control panel, but the API itself usually works without restrictions.