Claude Sonnet 4 vs Claude 3.5 Sonnet
Side-by-side pricing and cost comparison for AI coding projects.
Claude Sonnet 4
AnthropicAnthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.
| Input | $3.00/M |
| Output | $15.00/M |
| Context | 200K tokens |
| Best For | Day-to-day coding, code review, documentation |
Claude 3.5 Sonnet
AnthropicPrevious generation Sonnet. Still excellent for coding tasks at the same price point.
| Input | $3.00/M |
| Output | $15.00/M |
| Context | 200K tokens |
| Best For | Coding assistants, web development, data analysis |
Cost Comparison by Scenario
| Scenario | Claude Sonnet 4 | Claude 3.5 Sonnet | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.62 | $0.62 | Claude Sonnet 4 saves <$0.01 (0%) |
| Medium Feature (10K lines) | $4.66 | $4.66 | Claude Sonnet 4 saves <$0.01 (0%) |
| Large Project (50K lines) | $23.29 | $23.29 | Claude Sonnet 4 saves <$0.01 (0%) |
| Code Review (5K lines) | $1.20 | $1.20 | Claude Sonnet 4 saves <$0.01 (0%) |
Verdict
Claude Sonnet 4 is cheaper at $3.00/M input vs $3.00/M for Claude 3.5 Sonnet.
For a typical medium feature project, Claude Sonnet 4 costs $4.66 compared to $4.66 for Claude 3.5 Sonnet.
However, Claude 3.5 Sonnet may offer coding assistants, web development, data analysis — choose based on your specific needs.
Compare with Other Models
Claude Opus 4
AnthropicAnthropic's most powerful model. Best for complex reasoning and challenging coding tasks.
Claude 3.5 Haiku
AnthropicFast, cost-effective model for high-volume tasks. Great for code review and simple queries.
Claude 3 Opus
AnthropicFirst generation Opus. Highest reasoning capability in the Claude 3 family.
Claude 3 Sonnet
AnthropicFirst generation Sonnet. Balanced performance for general tasks.
Claude 3 Haiku
AnthropicCheapest Claude model. Fast responses for simple tasks and basic coding.
GPT-4o
OpenAIOpenAI's flagship multimodal model. Strong coding and reasoning at competitive pricing.