GPT-6 Rosalind (Reasoning)

by OpenAI

GPT-6 Rosalind (Reasoning) is a reasoning model from OpenAI, released on October 30, 2026. API pricing is $15 per 1M input tokens and $75 per 1M output tokens.

GPT-6 Rosalind is OpenAI's GPT-6-generation specialized life-sciences model, released on October 30, 2026. OpenAI's API changelog describes it as bringing specialized biological reasoning with scientific tool use to complex life sciences research. Access is limited to organizations approved for Rosalind Research through OpenAI's trusted-access program, for internal research by authorized users; in ChatGPT it rolls out as GPT-6 Rosalind Research to approved Business customers in Work and Codex, with GPT-5.5 Rosalind Research remaining available for existing workflows. The API model id is gpt-6-rosalind. OpenAI's pricing page lists Standard per-million-token pricing of $15 input, $1.50 cached input, $18.75 cache writes (30-minute retention; 12-hour retention is $37.50), and $75 output for short context, and $30 input, $3 cached input, $37.50 / $75 cache writes, and $112.50 output for long context (above 272K input tokens). Regional processing adds 10% where available. OpenAI has not yet published a model reference page, system card, or benchmark results for GPT-6 Rosalind, so context-window and output limits and benchmark scores are not recorded.

Key specs

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