Claude Sonnet 5.5 vs Claude Haiku 4.5: API cost
Standard, cached and batch API prices for Claude Sonnet 5.5 (Anthropic) and Claude Haiku 4.5 (Anthropic), and what each costs for your usage.
Claude Haiku 4.5 is cheaper than Claude Sonnet 5.5 at standard rates, with 2× cheaper input and 2× cheaper output.
- Input $60.00
- Cached input $3.00
- Output $90.00
- Input $30.00
- Cached input $3.00
- Output $45.00
Show as a table
| Output tokens | Claude Sonnet 5.5 | Claude Haiku 4.5 |
|---|---|---|
| 0 | $2.00 | $1.00 |
| 250 | $4.50 | $2.25 |
| 500 | $7.00 | $3.50 |
| 750 | $9.50 | $4.75 |
| 1,000 | $12.00 | $6.00 |
| Token type | Claude Sonnet 5.5 | Claude Haiku 4.5 | |
|---|---|---|---|
| Input | $2 | $1 | Claude Haiku 4.5 is 2× cheaper |
| Cached input | $0.10 | $0.10 | Same price |
| Output | $10 | $5 | Claude Haiku 4.5 is 2× cheaper |
| Batch input | $1 | $0.50 | Claude Haiku 4.5 is 2× cheaper |
| Batch cached input | $0.05 | $0.05 | Same price |
| Batch output | $5 | $2.50 | Claude Haiku 4.5 is 2× cheaper |
| Workload | Claude Sonnet 5.5 | Claude Haiku 4.5 |
|---|---|---|
Support chatbot 2,000 in / 300 out tokens,
1,000 requests a day, 50% cached | $153.00 | $78.00 |
Document summaries 10,000 in / 800 out tokens,
200 requests a day | $168.00 | $84.00 |
Tagging / classifying 400 in / 20 out tokens,
20,000 requests a day | $600.00 | $300.00 |
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- Claude Haiku 4.5 vs Gemini 3.8 Flash
Or see Claude Sonnet 5.5 pricing, Claude Haiku 4.5 pricing, or compare any two models.
FAQ
Frequently asked questions
Is Claude Sonnet 5.5 cheaper than Claude Haiku 4.5?
Claude Haiku 4.5 is cheaper than Claude Sonnet 5.5 at standard rates, with 2× cheaper input and 2× cheaper output. Based on standard API rates last checked on Oct 7, 2026.
How much do Claude Sonnet 5.5 and Claude Haiku 4.5 cost per million tokens?
Claude Sonnet 5.5: $2 per million input tokens and $10 per million output tokens. Claude Haiku 4.5: $1 input and $5 output. These are standard rates in USD, before tax, from each provider’s own pricing page.
Which is cheaper with the Batch API?
Claude Sonnet 5.5’s batch rates are $1 input and $5 output per million tokens (50% off); Claude Haiku 4.5’s batch rates are $0.50 input and $2.50 output per million tokens (50% off).
Does prompt caching change the comparison?
Claude Sonnet 5.5 charges $0.10 per million cached input tokens, against $2 for normal input; Claude Haiku 4.5 charges $0.10 per million cached input tokens, against $1 for normal input. Cache write and storage charges are extra and aren’t included here.