Claude Opus 4.1 vs Claude Sonnet 4.5
Side-by-side comparison of pricing, capabilities, benchmarks, and use case fit.
A
Claude Opus 4.1
Anthropic
A
Claude Sonnet 4.5
Anthropic
Capability radar
Normalized coding, reasoning, writing, vision, context, and value
Claude Opus 4.1Claude Sonnet 4.5
| Metric | Claude Opus 4.1 | Claude Sonnet 4.5 |
|---|---|---|
| Input Price / 1M | $15.00 | $3.00 |
| Output Price / 1M | $75.00 | $15.00 |
| Combined Price / 1M | $90.00 | $18.00 |
| Context Window | 200,000 | 200,000 |
| Coding Score | 96 | 95 |
| Reasoning Score | 97 | 93 |
| Vision Score | 90 | 88 |
| Audio | No | No |
| Streaming | Yes | Yes |
| Function Calling | Yes | Yes |
| Latency Tier | reasoning | fast |
| Release Date | 5/22/2026 | 6/15/2026 |
Claude Opus 4.1 — Strengths & Weaknesses
Strengths
- Top-tier reasoning
- Elite coding
- Writing quality
Weaknesses
- Expensive
- Slower than Haiku/Sonnet
Claude Sonnet 4.5 — Strengths & Weaknesses
Strengths
- Coding excellence
- Speed/quality balance
- Strong agents
Weaknesses
- Below Opus on hardest analysis
Use Case Verdicts
Enterprise Use
Claude Opus 4.1 combines strong reasoning, tooling, and context for enterprise workloads.
Agent Workflows
Claude Opus 4.1 is better suited for agentic workflows with tool use and coding capability.