GPT-5.6 Terra has a larger context window than Optimus Alpha (1.1M tokens vs 1.0M tokens).
| Spec | GPT-5.6 Terra | Optimus Alpha |
|---|---|---|
| Input price | $2.5/M tokens | — |
| Output price | $15/M tokens | — |
| Context window | 1.1M tokens | 1.0M tokens |
| Released | Jul 2026 | Apr 2025 |
Not enough votes to call it. On the specs, GPT-5.6 Terra has the edge: newer, major provider backing.
Optimus Alpha uses 4.9x more transitions
GPT-5.6 Terra has a larger context window than Optimus Alpha (1.1M tokens vs 1.0M tokens).
| Spec | GPT-5.6 Terra | Optimus Alpha |
|---|---|---|
| Input price | $2.5/M tokens | — |
| Output price | $15/M tokens | — |
| Context window | 1.1M tokens | 1.0M tokens |
| Released | Jul 2026 | Apr 2025 |
Not enough votes to call it. On the specs, GPT-5.6 Terra has the edge: newer, major provider backing.
Optimus Alpha uses 4.9x more transitions