Model comparison
Claude Opus 5 (Fast) vs Claude 4 Sonnet
Capability radar, value bars, and side-by-side posture.
Claude Opus 5 (Fast)
Not scored
value score
Claude 4 Sonnet
91
value score
Claude Opus 5 (Fast) ctx
200K
Claude 4 Sonnet ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Sonnet91
Attribute tape
| Field | Claude Opus 5 (Fast) | Claude 4 Sonnet |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Context | 200K | 200K |
| Modalities | Text, Code, Image | |
| Openness | Closed | Proprietary Model |
| Speed | — | Fast |
| Price | $15/1M in · $75/1M out | $3/1M in · $15/1M out |
| Value score | — | 91 |
| Summary | Claude Opus 5 (Fast) is Anthropic's latency-optimized serving tier for its flagship Claude Opus 5 model, delivering approximately 2.5× faster responses than the standard tier at a higher per-token price. It targets interactive coding, agentic workflows, and real-time assistant use cases that require frontier-level reasoning with reduced latency. | Balanced Claude model for coding and agents. |