Pyyan / Compare / Muse Spark 1.2 vs GPT-5.6 Sol
Muse Spark 1.2 vs GPT-5.6 Sol
2 of 5Language Models · verified 13 Aug 2026
Muse Spark 1.2Metacurrent
GPT-5.6 SolOpenAIcurrent| Specification | Muse Spark 1.2 | GPT-5.6 Sol |
|---|---|---|
| Summary | Meta's first paid, closed model line. | Flagship tier of the GPT-5.6 family. |
| Context | — | 1M+ |
| Licence | Proprietary | Proprietary |
| Released | Jul 2026 | 9 Jul 2026 |
| Category | Language Models | Language Models |
| Official | Meta ↗ | OpenAI ↗ |
Highlighted rows are where these differ.
GPT-5.6 Sol
- Three tiers: Sol, Terra, Luna
- Adjustable reasoning effort from none to max
- Broad rollout began 9 July 2026
Best for all-round work.