Claude Opus 4.5 is the newer model, released after Optimus Alpha.
| Spec | Claude Opus 4.5 | Optimus Alpha |
|---|---|---|
| Context window | — | 1.0M tokens |
| Released | Nov 2025 | Apr 2025 |
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: bigger model tier, newer, major provider backing.
Claude Opus 4.5 uses 15.2x more emoji
Claude Opus 4.5 is the newer model, released after Optimus Alpha.
| Spec | Claude Opus 4.5 | Optimus Alpha |
|---|---|---|
| Context window | — | 1.0M tokens |
| Released | Nov 2025 | Apr 2025 |
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: bigger model tier, newer, major provider backing.
Claude Opus 4.5 uses 15.2x more emoji