Claude 3.5 Sonnet vs Claude Sonnet 4
| Claude 3.5 Sonnet | Claude Sonnet 4 | |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Context Window | 200,000 | 200,000 |
| Release Date | 2024-06-20 | 2025-05-21 |
| Input Price | $3.00/ 1M tokens | $3.00/ 1M tokens |
| Output Price | $15.00/ 1M tokens | $15.00/ 1M tokens |
| Best for | coding · writing · chatbot · analysis | reasoning · coding · analysis · tool use |
Capabilities
| Claude 3.5 Sonnet | Claude Sonnet 4 | |
|---|---|---|
| Vision | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Coding | ✓ | ✓ |
| Audio | ✗ | ✗ |
| Tools | ✓ | ✓ |
| Long Context | ✓ | ✓ |
Ranking Comparison
| Claude 3.5 Sonnet | Claude Sonnet 4 | |
|---|---|---|
| Overall | 78.4 | 44.8 |
| Benchmark | 80 | 0 |
| Capability | 85.7 | 85.7 |
| Price Efficiency | 100 | 100 |
| Context | 100 | 100 |
Overall = Benchmark 50% + Capability 20% + Price Efficiency 20% + Context 10%.
Benchmark Comparison
| Claude 3.5 Sonnet | Claude Sonnet 4 | |
|---|---|---|
| Coding | — | — |
| Reasoning | — | — |
| Math | — | — |
| Vision | — | — |
Price History
Claude 3.5 Sonnet
| Date | Input | Output |
|---|---|---|
| 2026-08-11 | $3.00 | $15.00 |
/ 1M tokens
Claude Sonnet 4
| Date | Input | Output |
|---|---|---|
| 2026-08-11 | $3.00 | $15.00 |
/ 1M tokens
Claude 3.5 Sonnet
Anthropic's flagship model known for strong coding and nuanced writing.
Claude Sonnet 4
Anthropic's balanced frontier model: strong reasoning with great cost-efficiency.
Claude 3.5 Sonnet
Data Reliability
Benchmark · VerifiedOfficial · Verified
Data confidence: 90%
Claude Sonnet 4
Data Reliability
Benchmark · ExperimentalOfficial · Verified
Data confidence: 95%
Why compare these models?
These models are compared because:
- • Same capability category
- • Comparable pricing
Choose Claude 3.5 Sonnet if:
- • Higher overall score
Choose Claude Sonnet 4 if:
- • General purpose workloads
Frequently Asked Questions
Which model is better: Claude 3.5 Sonnet or Claude Sonnet 4?
Based on overall scores, Claude 3.5 Sonnet ranks higher (78.4 vs 44.8). See the comparison table for a full breakdown.
Which model is cheaper: Claude 3.5 Sonnet or Claude Sonnet 4?
Claude 3.5 Sonnet is cheaper: $3 vs $3 per 1M input tokens.
What are the capability differences between Claude 3.5 Sonnet and Claude Sonnet 4?
Claude 3.5 Sonnet and Claude Sonnet 4 support the same set of capabilities.