OpenAI · GPT-5.6 · Reviewed 2026-10-02

GPT-5.6 Terra

Historical GPT-5.6 model retained for comparison; old manually assigned capability scores have been retired.

All models

Overall · 0–100—

Status: legacy
Released: —
Context: Not disclosed
Parameters: Undisclosed
Inputs: Text · Image
Type: multimodal
Max output: — tokens
API model ID: —
Reasoning: —
Knowledge cutoff: —
Training cutoff: —
Weights / license: —
Price / 1M tokens: —
Cached input: —

Independent benchmark scores

No snapshot score

Coding

—

No comparable score for this task lens in the selected independent snapshot.

No snapshot score

Reasoning

—

No comparable score for this task lens in the selected independent snapshot.

No snapshot score

Research

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No comparable score for this task lens in the selected independent snapshot.

No snapshot score

Multimodal

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No comparable score for this task lens in the selected independent snapshot.

No snapshot score

Agentic

—

No comparable score for this task lens in the selected independent snapshot.

Raw benchmark results

Source-backed rows with the original evaluation context preserved.

0 results

No verified raw benchmark rows are registered for this model yet.

Strengths

Source-backed model profile

Limitations

Unconfirmed specifications remain undisclosed; missing evaluation results remain unranked

Model evidence · official · Checked 2026-06-10

OpenAI models documentation

Use for current model availability and capability notes; verify before publishing claims.

Capability Index source

Artificial Analysis Intelligence Index v4.3.2

Underlying raw metrics and exact model configurations remain authoritative.

Capability Index source

Artificial Analysis methodology

Underlying raw metrics and exact model configurations remain authoritative.

Task lenses preserve raw scores. Radar axes use score / current leader × 100; overall is the equal-weight average of all five indices. Missing evidence is not a zero or a low rank.