Claude Opus 4.5 vs Claude Opus 4.8 Fast
Side-by-side comparison. Updated 2026-06-04.
Verdict
Claude Opus 4.5 wins on higher overall score (9.5 vs 9.3, +0.2).
Both models score equally. Pick based on which strengths align with your workload.
At a Glance
| Attribute | Claude Opus 4.5 | Claude Opus 4.8 Fast |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Tags | general | Fast |
| Context | 200,000 tokens | 1,000,000 tokens |
| Input price | $15.00/1M | $10.00/1M |
| Output price | $50.00/1M | $50.00/1M |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
Claude Opus 4.5 Strengths
- Pioneer extended reasoning with configurable thinking depth
- Exceptional creative writing and nuanced prose
- Strong agentic computer-use capabilities
- Excellent multilingual performance across 100+ languages
- Best-in-class instruction following and prompt adherence