OpenAI has quietly added three new model identifiers to its API: aurora-red-alpha, aurora-green-alpha, and aurora-blue-alpha. The models were reported on October 18, 2026 by AI researcher @scaling01 on X, with no official announcement or documentation from OpenAI. No public pricing, rate limits, or capability details have been provided. An earlier model named aurora-alpha appeared on OpenRouter in February 2026, and speculation about a possible link to GPT-5.3-Codex-Spark remains unconfirmed. For developers, these undocumented alpha models do not provide a reliable foundation for building production systems.
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