Name: GPT-5.6 Sol Pro
Author: OpenAI

GPT-5.6 Sol Pro

OpenAI · 2026-07-09

GPT-5.6 Sol Pro is the higher-compute Pro variant of GPT-5.6 Sol, represented as a distinct Atlas model so benchmark results reported under the Pro identity are not collapsed into standard Sol. OpenAI exposes Pro through the gpt-5.6-sol API model with reasoning.mode set to pro rather than through a separate API model ID.

Benchmark scores

Benchmark	Score
AHK-Eval	97.2
AHK-Eval Algorithms	100.0
AHK-Eval Data Structures	100.0
AHK-Eval Date and Time	100.0
AHK-Eval Easy	91.7
AHK-Eval Hard	100.0
AHK-Eval Hidden Cases	97.8
AHK-Eval Mid	100.0
AHK-Eval Numbers	100.0
AHK-Eval Parse Success	100.0
AHK-Eval Regex	83.3
AHK-Eval Strings	100.0
APEX-Agents	40.0
BuseyBench SVG	6.3
CadQueryEval	84.0
CadQueryEval — Bounding Box	100.0
CadQueryEval — Chamfer Distance	100.0
CadQueryEval — Code Execution	100.0
CadQueryEval — Component Count	100.0
CadQueryEval — Hausdorff 95p	96.0
CadQueryEval — STL Creation	100.0
CadQueryEval — Volume	96.0
CadQueryEval — Watertight Mesh	92.0
Capability	164.9
Chess Puzzles	64.0
Eval Connections	100.0
Eval Connections — Guess Accuracy	100.0
FrontierMath Tier 4 (v2) - Private	80.5
GeneBench-Pro	31.5
GeneBench-Pro Artificial Analysis Subset	18.0