Changelog/OpenAI: GPT-4o (2024-05-13) releasedReleaseApril 18, 2026OpenAI: GPT-4o (2024-05-13) releasedOpenAI: GPT-4o (2024-05-13) discovered via OpenRouter. Provider: OpenAI.Provider: OpenAIModel: OpenAI: GPT-4o (2024-05-13)