Pyyan / Compare / GPT-5.6 Sol vs Grok 4.6
GPT-5.6 Sol vs Grok 4.6
2 of 5Language Models · verified 13 Aug 2026
GPT-5.6 SolOpenAIcurrentGrok 4.6xAIcurrent
| Specification | GPT-5.6 Sol | Grok 4.6 |
|---|---|---|
| Summary | Flagship tier of the GPT-5.6 family. | Newest xAI flagship. |
| Context | 1M+ | 500K |
| Input ($/Mtok) | — | $2 |
| Output ($/Mtok) | — | $6 |
| Licence | Proprietary | Proprietary |
| Released | 9 Jul 2026 | 12 Aug 2026 |
| Model ID | — | grok-4.6 |
| Category | Language Models | Language Models |
| Official | OpenAI ↗ | xAI ↗ |
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.
Grok 4.6
- Tiered pricing: doubles above 200K tokens
- Smaller context than Grok 4.3 despite being newer
Best for cost-sensitive scale.