Pyyan / Language Models / GPT-5.6 Sol

GPT-5.6 Sol

Flagship tier of the GPT-5.6 family.

currentOpenAI ↗Verified 2026-08-13

1M+

context

Specifications

Context	1M+
Licence	Proprietary
Released	9 Jul 2026

Official links

OpenAI official site

What matters

Three tiers: Sol, Terra, Luna
Adjustable reasoning effort from none to max
Broad rollout began 9 July 2026

Best for all-round work.

Compare with

All 5 side by side →

GPT-5.6 Sol vs Claude Fable 5 →GPT-5.6 Sol vs Claude Opus 5 →GPT-5.6 Sol vs Gemini 3.1 Pro →GPT-5.6 Sol vs Claude Sonnet 5 →GPT-5.6 Sol vs Grok 4.6 →

Also in Language Models

Claude Fable 5 · Anthropic Claude Opus 5 · Anthropic Gemini 3.1 Pro · Google Claude Sonnet 5 · Anthropic Grok 4.6 · xAI