GPT Rosalind Research costs $11.23 per million words.
OpenAI lists it at $5 per million input tokens and $25 per million output tokens on OpenAI’s pricing page, read 4:40 PM Eastern, Oct 7, 2026. It bills about 1,123 tokens for a thousand English words, so a million words, three in for every one out, costs $11.23.
- Maker
- OpenAI
- Input
- $5 per million tokens
- Output
- $25 per million tokens
- Cached input
- $0.50 per million tokens
- Tokens for 1,000 words
- 1,123, estimated from OpenAI’s other measured models, since we have not been able to measure this one
- Source
- OpenAI’s pricing page
Brass does not offer GPT Rosalind Research in its chat. The nearest model it offers from OpenAI is GPT-6.1 Sol: $4.49 per million words at OpenAI’s price, $5.61 in the Brass chat.
To use the models Brass offers, buy a pack.
Price history
| From | Per million words | Per million tokens, in / out |
|---|---|---|
| Oct 7, 2026 | $11.23 | $5 / $25 |
We began tracking GPT Rosalind Research on Oct 7, 2026.