GPT-5 Codex is the newer model, released after Optimus Alpha.
| Spec | GPT-5 Codex | Optimus Alpha |
|---|---|---|
| Context window | — | 1.0M tokens |
| Released | Sep 2025 | Apr 2025 |
Not enough votes to call it. On the specs, GPT-5 Codex has the edge: bigger model tier, newer, major provider backing.
GPT-5 Codex uses 14.6x more emoji
GPT-5 Codex is the newer model, released after Optimus Alpha.
| Spec | GPT-5 Codex | Optimus Alpha |
|---|---|---|
| Context window | — | 1.0M tokens |
| Released | Sep 2025 | Apr 2025 |
Not enough votes to call it. On the specs, GPT-5 Codex has the edge: bigger model tier, newer, major provider backing.
GPT-5 Codex uses 14.6x more emoji