Model ledger

GPT-5.6 Luna

OpenAI Codex · Provider not separately recorded · 25 recorded runs · 17 benchmarks. Open a run for its public headline result. Paid research access opens the full available ledger and configuration. Builder adds exact prompts, released projects, the RemakeBench Harness and production skills for the tests in its library.

Max reasoningxhigh reasoning

← All models Enter a blind battle

Benchmark

Campfire under the stars

3 runs · Max, xhigh reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock 02GPT-5.6 Luna Max17m 11.6s wall-clockWall-clock 03GPT-5.6 Luna xhigh8:40.2 wall-clockWall-clock

Benchmark

Courtyard Blossom Stage 2

1 run · Max reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock

Benchmark

1 run · Max reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock

Benchmark

Explorable space-flight game

2 runs · Max, xhigh reasoning

01GPT-5.6 Luna Max22m 48s wall-clockWall-clock 02GPT-5.6 Luna xhigh10:55.9 wall-clockWall-clock

Benchmark

Fighter Game v1

1 run · Max reasoning

01GPT-5.6 Luna Max33m 29.7s wall-clockWall-clock

Benchmark

High-voxel-density Jungle Temple diorama

1 run · xhigh reasoning

01GPT-5.6 Luna xhigh10:55.9 wall-clockWall-clock

Benchmark

High-voxel-density Oasis Outpost diorama

2 runs · Max, xhigh reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock 02GPT-5.6 Luna xhigh9:43.6 wall-clockWall-clock

Benchmark

High-voxel-density Shrine Village diorama

1 run · xhigh reasoning

01GPT-5.6 Luna xhigh14:02.1 wall-clockWall-clock

Benchmark

Infinite cathedral corridor shader

2 runs · Max, xhigh reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock 02GPT-5.6 Luna xhigh9:18.2 wall-clockWall-clock

Benchmark

Interactive Three.js voxel map viewer

2 runs · Max, xhigh reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock 02GPT-5.6 Luna xhigh15:00 wall-clockWall-clock

Benchmark

JRPG boss battle

2 runs · Max reasoning

01GPT-5.6 Luna Max26m 52.2s wall-clockWall-clock 02GPT-5.6 Luna MaxNot recordedWall-clock

Benchmark

Neo-gothic storm city shader

2 runs · Max, xhigh reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock 02GPT-5.6 Luna xhigh8:46.5 wall-clockWall-clock

Benchmark

Neon Gunner

1 run · Max reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock

Benchmark

Off-road Mud Game

1 run · Max reasoning

01GPT-5.6 Luna Max51m 53.5s wall-clockWall-clock

Benchmark

1 run · Max reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock

Benchmark

Space Flight Stage 2 — Landfall

1 run · Max reasoning

01GPT-5.6 Luna Max1h 28m 30.7s wall-clockWall-clock

Benchmark

1 run · Max reasoning

01GPT-5.6 Luna MaxNot recordedWall-clock