GPT-5.6 Terra: score and benchmark evidence

Historical release · · OpenAI

94.5 points · Rank 14 among 19 ranked models · Stability range 90.3–102.6 points.

Rank follows the point estimate; it does not establish statistically significant superiority. The scale is anchored at mean 100, SD 15 in the frozen calibration cohort, not human IQ or a percentage.

Release tli-2026-v4.2-2026-09-05. Methodology and limitations for this release.

This page preserves historical evidence. See the current model record.

Capability domains

Domain scores use calibration-cohort standard-deviation units. Unmeasured domains are shown as unavailable, not zero.

DomainScore (SD units)Observed benchmarks
Knowledge & reasoning-0.2816
Coding & software engineering0.1416
Agentic tool & computer use-0.2911
Professional & real-world work-0.6417
Multimodal & vision-0.404
Cybersecurity0.332
Preference & communication-0.664

Published benchmark evidence

70 results contribute to this score, from 70 collected results. Counts are not independent sample sizes.

This older release did not preserve per-model source records in its public snapshot. The archived scores remain available, but the current model record's evidence should not be treated as the source for these historical values.

    Cite this model record

    The Latent. “GPT-5.6 Terra: score and benchmark evidence.” 2026-09-05. Release tli-2026-v4.2-2026-09-05.

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