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RESTRICTED ACCESSLIFE SCIENCESBILLING FROM OCT 5NO CACHE WRITESTRUSTED ACCESS

GPT-Rosalind API Pricing

GPT-Rosalind is OpenAI's life-sciences reasoning model, available only to organisations approved for internal research through its trusted-access programme. OpenAI lists it at $5.00/M input, $0.50/M cached input and $25.00/M output, and has billed gpt-rosalind-research at that list price since October 5, 2026, when its free period ended. Checked by hand against developers.openai.com.

Restricted input - per 1M tokens
$5.00/M
List price - billing starts Oct 5 from Oct 5
Restricted output - per 1M tokens
$25.00/M
Trusted access only from Oct 5
Cached input - 90% off
$0.50/M
No cache-write pricing -90%
Effective - agentic blend
$3.21/M
92/8 split - 82% cache
§ 01 / TERMINAL

Run the numbers.

Calculator pre-loaded with GPT-Rosalind's list rates, which OpenAI has billed since October 5, 2026. Access requires approval, so the numbers apply only to an approved organisation's account.

$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
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Words equivalent (English)
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Effective rate
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Open full calculator (all models · share URL · CSV) →
§ 02 / SCENARIOS

Real-world presets.

LITERATURE

Paper set synthesis

$0.397/review
150,000 in - 8,000 out~252 reviews/$100
PROTOCOL

Assay protocol draft

$0.126/draft
20,000 in - 4,000 out~792 drafts/$100
ANALYSIS

Result interpretation

$0.066/query
12,000 in - 2,000 out~1,521 queries/$100
§ 03 / TOKENIZER

Paste text. See tokens. See cost.

What's a token →
Exact · o200k_base Auto-counts as you type

Counted with the o200k_base BPE encoding — the same tokenizer the API uses — entirely in your browser. The encoder loads on your first keystroke (~1 MB, one time); your text never leaves this page.

Characters 500
Words 70
Tokens (exact) 112 tokens
Cost as input · uncached $0.00056 USD
Cost as output · uncached $0.0028 USD
Cost as cached input $0.00006 USD
§ 04 / SHELF

Up against the shelf.

All models →
Model Input /M Output /M Effective blended Context Best for
GPT-Rosalind Current $5.00 cache $0.50 $25.00 $3.21 agentic 92/8 not listed Life-sciences research for approved organisations
Claude Mythos 5.1 $10.00 cache $0.25 $50.00 $6.26 +95% 1M Restricted model open to vetted life-sciences organisations
GPT-6 Astra $10.00 cache $1.00 $50.00 $6.82 +2.1× 1.05M OpenAI's generally available flagship
GPT-5.6 Sol $4.00 cache $0.40 $20.00 $2.73 −15% · promo 1.05M OpenAI's general reasoning model at a promotional rate

Frequently asked.

GPT-Rosalind pricing questions - the listed rate, when it starts billing, and who can use it.

Q · 01 What is GPT-Rosalind priced at? +
OpenAI's pricing page lists gpt-rosalind-research under Specialized models at $5.00/M input, $0.50/M cached input and $25.00/M output. Cache-write pricing does not apply to this model.
Q · 02 Is GPT-Rosalind still free? +
No. OpenAI started billing gpt-rosalind-research on October 5, 2026, which ended the free period; usage from that date is charged at the list price above.
Q · 03 Who can use it? +
Only organisations approved through OpenAI's trusted-access programme, for internal life-sciences research. There is no self-serve sign-up, so the model is kept out of this site's calculators and flagship board.
Q · 04 Will the model behind the id change? +
Possibly. OpenAI says eligible organisations will continue to get access to the latest GPT-Rosalind models as they are released, which reads like an id that tracks the newest version. OpenAI publishes no context window, output limit or model page for it yet.
Y
Reviewed by Yaroslav Vikhariev Founder · AI//COST · Prices checked by hand against developers.openai.com · Last verified Oct 6, 2026
Methodology Report a correction More by Y.V.