GPT 5.1 Instant

release date unknown

BenchAtlas Index

as of 2026-07-14

Not enough benchmark coverage for a composite score (needs ≥4 families across ≥3 categories). The per-benchmark evidence below stands on its own — sparse coverage is an evidence gap, not a low score.

Benchmark evidence

4 results

factuality

MASK

contamination=Potential contamination warning: This model was evaluated after the public release of MASK, allowing model builder access to the prompts and solutions.

63.3 %

62.3–64.4

independent

Scale Labs

knowledge science

Humanity's Last Exam

contamination=Potential contamination warning: This model was evaluated after the public release of HLE, allowing model builder access to the prompts and solutions. · implementation=scale

6.8 %

5.8–7.8

independent

Scale Labs

multimodal

VISTA

34.9 %

33.1–36.6

independent

Scale Labs

reasoning math

EnigmaEval

contamination=Potential contamination warning: This model was evaluated after the public release of EnigmaEval, allowing model builder access to the prompts and solutions.

1.9 %

1.1–2.7

independent

Scale Labs