GPT-6 Astra Pro is the newer model, released after TNG R1T Chimera.
| Spec | GPT-6 Astra Pro | TNG R1T Chimera |
|---|---|---|
| Input price | $10/M tokens | — |
| Output price | $50/M tokens | — |
| Context window | 1.1M tokens | — |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Sep 2026 | Nov 2025 |
Not enough votes to call it. On the specs, GPT-6 Astra Pro has the edge: bigger model tier, newer, bigger context window, major provider backing.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 8 Sep 2026.