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OpenAISpecialist modelLimited access

GPT-Rosalind-5.5

PopularityRank 670 of 875

0out of 100same as last month

Summary

GPT-Rosalind-5.5 is OpenAI’s specialist model for life sciences. It combines agentic tool use with medicinal chemistry, genomics, quantitative biology, and laboratory assistance. The model is multimodal.

Eligible organizations receive global access through OpenAI’s trusted-access structure. The announced variant builds on GPT-5.5. Its safety documentation describes reviewed deployment, not open weights or an unrestricted standard API.

All benchmark results

Every published result with its source, test setup and comparison models.

Show all 14 published benchmark results

Page 1 of 2

Measurements without matching peer values

These measurements have no matching peer values under the same test conditions. Their original values and sources remain available here.

MedChemBench pass@1 (Show measurement, test conditions, and source)
Source value
27.5
Score
27.5
Metric
percent
Unit
%
Category
life-sciences
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI system card
Status
active
Retrieved at
2026-10-04
Methodology
Vendor-reported result. Table 1; multimodal medicinal-chemistry workflow evaluation; GPT-5.5 comparator 25.1%.
Source OpenAI system card
GeneBench pass@1 (Show measurement, test conditions, and source)
Source value
21.6
Score
21.6
Metric
percent
Unit
%
Category
life-sciences
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI system card
Status
active
Retrieved at
2026-10-04
Methodology
Vendor-reported result. Table 2; long-horizon genomics and quantitative-biology agentic evaluation; GPT-5.5 comparator 20.4%.
Source OpenAI system card
LifeSciBench pass@1 (Show measurement, test conditions, and source)
Source value
63.4
Score
63.4
Metric
percent
Unit
%
Category
life-sciences
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI system card
Status
active
Retrieved at
2026-10-04
Methodology
Vendor-reported result. Table 3; externally expert-judged end-to-end life-sciences research benchmark; GPT-5.5 comparator 58.8%.
Context
LifeSciBench and Labwork Bench are distinct benchmarks, not competing values.
Source OpenAI system card
Labwork Bench pass@1 (Show measurement, test conditions, and source)
Source value
63.2
Score
63.2
Metric
percent
Unit
%
Category
life-sciences
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI system card
Status
active
Retrieved at
2026-10-04
Methodology
Vendor-reported result. Table 4; proprietary wet-lab protocol perturbation and outcome evaluation; GPT-5.5 comparator 55.8%.
Context
LifeSciBench and Labwork Bench are distinct benchmarks, not competing values.
Source OpenAI system card
ProtocolQA Open-Ended (Show measurement, test conditions, and source)
Source value
36.4
Score
36.4
Metric
pass@1
Unit
%
Benchmark version
OpenAI GPT-Rosalind-5.5 system card, Table 6
Category
life-sciences-capability
Direction
Higher is better
Sample
108
Source type
vendor-reported
Evaluator
OpenAI, GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-16
Methodology
Vendor-reported result. The card converts 108 FutureHouse ProtocolQA multiple-choice questions into open-ended short answers about troubleshooting published laboratory protocols. Exact GPT-Rosalind-5.5 pass@1 result; no confidence interval is published.
Context
Provider-reported, task-specific capability result. Higher is better for this task, not evidence of safer behavior or overall model quality. No confidence interval is published.
Source OpenAI, GPT-Rosalind-5.5 system card
TroubleshootingBench (Show measurement, test conditions, and source)
Source value
53.31
Score
53.31
Metric
pass@1
Unit
%
Benchmark version
OpenAI GPT-Rosalind-5.5 system card, Table 7
Category
life-sciences-capability
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI, GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-16
Methodology
Vendor-reported result. OpenAI reports 52 expert-written, non-public biological protocols with three troubleshooting questions per protocol. The report gives the task-construction counts but not the scored denominator; no sample count or confidence interval is inferred.
Context
Provider-reported, task-specific capability result on a provider-built dataset. Higher performance on this task does not imply safer behavior or better overall model quality. Its scored denominator and confidence interval are not published.
Source OpenAI, GPT-Rosalind-5.5 system card
Biorisk knowledge (Show measurement, test conditions, and source)
Source value
81.1
Score
81.1
Metric
cons@32
Unit
%
Benchmark version
OpenAI GPT-Rosalind-5.5 system card, Table 8
Category
bio-risk-capability
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI, GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-16
Methodology
Vendor-reported result. The card describes an uncontaminated, unpublished, in-house closed-ended evaluation developed with Gryphon Scientific. It reports cons@32; no scored denominator or confidence interval is published.
Context
Biosecurity-relevant capability measurement, not a measure of safety desirability. A higher score means greater capability on this evaluation, not safer behavior or better overall quality. Provider-reported; no N or confidence interval published.
Source OpenAI, GPT-Rosalind-5.5 system card
Multi-select Virology Troubleshooting (Show measurement, test conditions, and source)
Source value
51.2
Score
51.2
Metric
pass@1
Unit
%
Benchmark version
OpenAI GPT-Rosalind-5.5 system card, Table 9
Category
bio-risk-capability
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI, GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-16
Methodology
Vendor-reported result. The card describes fully held-out SecureBio virology troubleshooting questions in a multi-select format. It reports pass@1; the scored denominator and confidence interval are not published.
Context
Biosecurity-relevant task capability, not a measure of safety desirability. A higher score does not mean safer behavior or better overall quality. Provider-reported; denominator and confidence interval are not published.
Source OpenAI, GPT-Rosalind-5.5 system card
Hard-negative protein binding prediction (Show measurement, test conditions, and source)
Source value
3.13
Score
3.13
Metric
pass@4
Unit
%
Benchmark version
OpenAI GPT-Rosalind-5.5 system card, Table 10
Category
bio-risk-capability
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI, GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-16
Methodology
Vendor-reported result. OpenAI describes a proprietary non-contaminated hard-negative protein-binding evaluation with five candidates per task, one true binder, 43 protein targets and 492 hotspots, using structures and browser/computer tools. The scored task count is not stated; pass@4 is retained exactly.
Context
Biosecurity-relevant protein-design capability, not a measure of safety desirability. A higher pass rate indicates greater capability on this task, not safer behavior or better overall quality. Provider-reported; scored N and confidence interval are not published.
Source OpenAI, GPT-Rosalind-5.5 system card
DNA sequence design for transcription-factor binding (Show measurement, test conditions, and source)
Source value
13.64
Score
13.64
Metric
pass@1
Unit
%
Benchmark version
OpenAI GPT-Rosalind-5.5 system card, Table 11
Category
bio-risk-capability
Direction
Higher is better
Source type
vendor-reported
Evaluator
OpenAI, GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-16
Methodology
Vendor-reported result. The card evaluates DNA sequence design for transcription-factor binding with BPNet and, where available, Basenji2 as oracles, compared with Ledidi. The score is pass@1; the scored denominator and confidence interval are not published.
Context
Biosecurity-relevant DNA-design capability, not a measure of safety desirability. A higher pass rate indicates greater capability on this task, not safer behavior or better overall quality. Provider-reported; scored N and confidence interval are not published.
Source OpenAI, GPT-Rosalind-5.5 system card
Medicinal chemistry (Show measurement, test conditions, and source)
Source value
27133.5
Score
27133.5
Metric
Average output tokens
Unit
No unit provided
Direction
No direction published
Source type
vendor-reported
Evaluator
OpenAI GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-19
Methodology
Vendor-reported result. Table 1; GPT-Rosalind-5.5 column; row "Average output tokens".
Context
This is the source's average output-token count, not a quality score. The table does not state a task-level sample count or confidence interval.
Source OpenAI GPT-Rosalind-5.5 system card
Genomics and quantitative biology (Show measurement, test conditions, and source)
Source value
16721
Score
16721
Metric
Average output tokens
Unit
No unit provided
Direction
No direction published
Source type
vendor-reported
Evaluator
OpenAI GPT-Rosalind-5.5 system card
Status
active
Retrieved at
2026-10-19
Methodology
Vendor-reported result. Table 2; GPT-Rosalind-5.5 column; row "Average output tokens".
Context
This is the source's average output-token count, not a quality score. The table does not state a task-level sample count or confidence interval.
Source OpenAI GPT-Rosalind-5.5 system card

Page 1 of 2

Popularity compared

How often the model is searched for, used and mentioned, compared with every model of its category.

Popularity index

0 to 100, higher is more popular

20 of 29 models

As of November 2026 · Source: gradually.ai popularity index

Over time

Weekly values from October 18, 2026 to November 5, 2026

GPT-Rosalind-5.5Cohere Embed v5 FastCohere Embed v5 ProCohere Rerank 5 FastCohere Rerank 5 Pro

All specifications

Architecture

Model class
Life sciences specialist model
Source: Model class

Input and output

Capabilities
Medicinal chemistry, genomics, quantitative biology, and lab assistance
Source: Capabilities

Watermarking and provenance

AI watermarking refers to invisible signals embedded in the output. Visible marks and provenance metadata are listed separately. Unknown means there is insufficient evidence for that particular field.

AI watermarking
Unknown
no source
Watermarking technique
Not known
no source

Licence and access

Access
Global trusted access for eligible organizations
Source: Access

Further details

Model line
Updated GPT-Rosalind variant built on GPT-5.5
Source: Model line
Safety access
Organization access with review and approval
Source: Safety access

Sources and data date

Show all 10 sources

Benchmark sources at a glance

Which independent evaluators tested this model. This is coverage, not a quality ranking.

No active result from the reviewed external evaluators can currently be attributed to this model. Other source evidence remains available below.

Without vendor claims and historical or disputed results; those stay labelled in the single values.