Claude 3.5 Sonnet vs Claude Sonnet 4.5
Side-by-side comparison of pricing, capabilities, benchmarks, and use case fit.
A
Claude 3.5 Sonnet
Anthropic
A
Claude Sonnet 4.5
Anthropic
Capability radar
Normalized coding, reasoning, writing, vision, context, and value
Claude 3.5 SonnetClaude Sonnet 4.5
| Metric | Claude 3.5 Sonnet | Claude Sonnet 4.5 |
|---|---|---|
| Input Price / 1M | $3.00 | $3.00 |
| Output Price / 1M | $15.00 | $15.00 |
| Combined Price / 1M | $18.00 | $18.00 |
| Context Window | 200,000 | 200,000 |
| Coding Score | 92 | 95 |
| Reasoning Score | 90 | 93 |
| Vision Score | 88 | 88 |
| Audio | No | No |
| Streaming | Yes | Yes |
| Function Calling | Yes | Yes |
| Latency Tier | standard | fast |
| Release Date | 6/20/2024 | 6/15/2026 |
Claude 3.5 Sonnet — Strengths & Weaknesses
Strengths
- Excellent coding
- Strong writing
- Good value
Weaknesses
- Output pricing can add up at scale
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 Sonnet 4.5 combines strong reasoning, tooling, and context for enterprise workloads.
Agent Workflows
Claude Sonnet 4.5 is better suited for agentic workflows with tool use and coding capability.