Claude 3.5 Sonnet vs Claude Sonnet 4.6
Claude 3.5 Sonnet vs Claude Sonnet 4.6: Claude 3.5 Sonnet is cheaper for input-heavy usage ($3.00/M vs $3.00/M input tokens), while Claude Sonnet 4.6 is better for long-context tasks (1,000,000 tokens).
Direct answer: choose Claude 3.5 Sonnet for lower token spend and choose Claude Sonnet 4.6 when your workload needs longer context.
Compare input and output token pricing, context windows, and monthly cost estimates on one page so you can pick the cheaper model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Claude 3.5 Sonnet
Claude Sonnet 4.6
Cost Differences
Claude Sonnet 4.6 costs less than Claude 3.5 Sonnet
Quick Recommendation
Winner for direct API pricing: Claude 3.5 Sonnet. At the default workload, Claude 3.5 Sonnet saves about $0.00/month ($0.00/year) versus Claude Sonnet 4.6.
Feature Comparison
| Feature | Claude 3.5 Sonnet | Claude Sonnet 4.6 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Input Price | $3.00/1M tokens | $3.00/1M tokens |
| Output Price | $15.00/1M tokens | $15.00/1M tokens |
| Context Window | 200,000 tokens | 1,000,000 tokens |
| Max Output | 8,192 tokens | 65,536 tokens |
| Category | balanced | balanced |
| Capabilities | textvisioncode | textvisioncodereasoningcomputer-use |
| Release Date | 10/22/2024 | 2/18/2026 |
Claude 3.5 Sonnet vs Claude Sonnet 4.6: Which Should You Choose?
Choosing between Claude 3.5 Sonnet and Claude Sonnet 4.6 depends on your priorities: cost efficiency, context length, or raw capability. Claude Sonnet 4.6 is the more affordable option at $3.00/1M input tokens. Meanwhile, Claude Sonnet 4.6 offers a significantly larger context window at 1,000,000 tokens vs 200,000 for Claude 3.5 Sonnet.
Both models are in the balanced category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Claude Sonnet 4.6 would save you roughly $0.00/month compared to Claude 3.5 Sonnet. For startups and indie developers, that difference can be significant.
Output costs matter too. Claude 3.5 Sonnet charges $15.00/1M output tokens vs $15.00 for Claude Sonnet 4.6.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Claude 3.5 Sonnet when:
- • You're already using Anthropic's API ecosystem
Choose Claude Sonnet 4.6 when:
- • You need a larger context window (1,000,000 tokens)
- • You need more capabilities (reasoning, computer-use)
- • You need longer outputs (up to 65,536 tokens)
- • You're already using Anthropic's API ecosystem
Pros and Caveats at a Glance
Claude 3.5 Sonnet
- • Input pricing: $3.00/M tokens
- • Output pricing: $15.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 8,192 tokens
Watch out for
- • Smaller context window than Claude Sonnet 4.6
Claude Sonnet 4.6
- • Input pricing: $3.00/M tokens
- • Output pricing: $15.00/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 65,536 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Claude 3.5 Sonnet (Anthropic)
Claude Sonnet 4.6 (Anthropic)
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Sign Up for Anthropic →Frequently Asked Questions
Which is cheaper, Claude 3.5 Sonnet or Claude Sonnet 4.6?▼
What is the context window difference between Claude 3.5 Sonnet and Claude Sonnet 4.6?▼
Which model is better for AI Chatbot?▼
Which model has better overall pricing for heavy usage?▼
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