Claude Opus 4.5 is the newer model, released after Sonar Pro Search.
| Spec | Claude Opus 4.5 | Sonar Pro Search |
|---|---|---|
| Input price | — | $3/M tokens |
| Output price | — | $15/M tokens |
| Context window | — | 200K tokens |
| Released | Nov 2025 | Oct 2025 |
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: bigger model tier, major provider backing.
Claude Opus 4.5 uses 15.2x more emoji
Claude Opus 4.5 is the newer model, released after Sonar Pro Search.
| Spec | Claude Opus 4.5 | Sonar Pro Search |
|---|---|---|
| Input price | — | $3/M tokens |
| Output price | — | $15/M tokens |
| Context window | — | 200K tokens |
| Released | Nov 2025 | Oct 2025 |
Not enough votes to call it. On the specs, Claude Opus 4.5 has the edge: bigger model tier, major provider backing.
Claude Opus 4.5 uses 15.2x more emoji