OpenAI releases GPT-6 Rosalind, a biology model with scientific tool use, to approved organizations

OpenAI's API changelog for October 30, 2026 lists the release of GPT-6 Rosalind (gpt-6-rosalind), which it describes as bringing specialized biological reasoning with scientific tool use to complex life sciences research. Access is limited to organizations approved for Rosalind Research through a trusted-access program, for internal research by authorized users.

OpenAI's API pricing page lists three Rosalind models, with prices per million tokens:

• gpt-6-rosalind: $15 input, $75 output, $1.50 cached input.
• gpt-rosalind-research: $5 input, $25 output, $0.50 cached input.
• gpt-rosalind-discovery: $5 input, $25 output, $0.50 cached input.

OpenAI has also published a system card addendum for GPT-Rosalind-6. It says the model is designed to be more useful for legitimate advanced biological research than generally available ChatGPT models, including some dual-use topics that GPT-6 Astra may refuse in General Access, while still being tuned to refuse or respond safely to requests that would meaningfully enable severe biological weaponization. Because it is a trusted-access deployment, OpenAI says it mainly weighed the Biosecurity - Severe benchmark.