Changelog/OpenAI: GPT-4o (2024-11-20) releasedReleaseApril 18, 2026OpenAI: GPT-4o (2024-11-20) releasedOpenAI: GPT-4o (2024-11-20) discovered via OpenRouter. Provider: OpenAI.Provider: OpenAIModel: OpenAI: GPT-4o (2024-11-20)