Claude 3.5 Sonnet vs Claude Haiku 4.5
Claude 3.5 Sonnet vs Claude Haiku 4.5: Claude Haiku 4.5 is cheaper for input-heavy usage ($1.00/M vs $3.00/M input tokens), while Claude 3.5 Sonnet is better for long-context tasks (200,000 tokens).
Direct answer: choose Claude Haiku 4.5 for lower token spend and choose Claude 3.5 Sonnet 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 Haiku 4.5
Cost Differences
Claude Haiku 4.5 costs less than Claude 3.5 Sonnet
Quick Recommendation
Winner for direct API pricing: Claude Haiku 4.5. At the default workload, Claude Haiku 4.5 saves about $21.00/month ($255.50/year) versus Claude 3.5 Sonnet.
Feature Comparison
| Feature | Claude 3.5 Sonnet | Claude Haiku 4.5 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Input Price | $3.00/1M tokens | $1.00/1M tokens |
| Output Price | $15.00/1M tokens | $5.00/1M tokens |
| Context Window | 200,000 tokens | 200,000 tokens |
| Max Output | 8,192 tokens | 64,000 tokens |
| Category | balanced | efficient |
| Capabilities | textvisioncode | textvision |
| Release Date | 10/22/2024 | 10/15/2025 |
Claude 3.5 Sonnet vs Claude Haiku 4.5: Which Should You Choose?
Choosing between Claude 3.5 Sonnet and Claude Haiku 4.5 depends on your priorities: cost efficiency, context length, or raw capability. Claude Haiku 4.5 is the more affordable option at $1.00/1M input tokens — 67% cheaper than Claude 3.5 Sonnet.
These models target different tiers: Claude 3.5 Sonnet is a balanced model while Claude Haiku 4.5 is efficient. This means they're optimized for different workloads. Claude Haiku 4.5 targets more demanding workloads, while Claude 3.5 Sonnet provides a cost-effective option for everyday tasks.
Output costs matter too. Claude 3.5 Sonnet charges $15.00/1M output tokens vs $5.00 for Claude Haiku 4.5. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Claude Haiku 4.5 has the edge here at $5.00/1M output tokens.
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 need more capabilities (code)
- • You're already using Anthropic's API ecosystem
Choose Claude Haiku 4.5 when:
- • Budget is a primary concern
- • You need longer outputs (up to 64,000 tokens)
- • You're already using Anthropic's API ecosystem
- • You're running high-volume, latency-sensitive workloads
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
- • Higher input cost than Claude Haiku 4.5
- • Higher output cost than Claude Haiku 4.5
Claude Haiku 4.5
- • Input pricing: $1.00/M tokens
- • Output pricing: $5.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 64,000 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 Haiku 4.5 (Anthropic)
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Sign Up for Anthropic →Frequently Asked Questions
Which is cheaper, Claude 3.5 Sonnet or Claude Haiku 4.5?▼
What is the context window difference between Claude 3.5 Sonnet and Claude Haiku 4.5?▼
Which model is better for AI Chatbot?▼
Which model has better overall pricing for heavy usage?▼
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