Comparison · Anthropic
Claude Haiku 5.5 vs Claude Sonnet 5.5
Listed API prices of Claude Haiku 5.5 and Claude Sonnet 5.5 turned into the cost of the same three standard tasks, with speed from our own test requests in the United States. Output quality and answer length are not compared.
Calculated impact cost per task and per month
For an L2 task (deep analysis over a 50,000-token document, 3 steps), Claude Haiku 5.5 costs $0.017 and Claude Sonnet 5.5 $0.348 at the prices listed in the United States on , so Claude Haiku 5.5 is 95.0 % less than Claude Sonnet 5.5, counting visible output only, without cache discounts or hidden reasoning.
| Task | Claude Haiku 5.5, per task | Claude Sonnet 5.5, per task | Claude Haiku 5.5, per month | Claude Sonnet 5.5, per month | Claude Haiku 5.5 vs Claude Sonnet 5.5, per task |
|---|---|---|---|---|---|
| L1Micro-task (classification or strict JSON extraction) | $0.0003per L1 task | $0.0050per L1 task | $3.65per month | $73.00per month | −95.0 % |
| L2Deep analysis over a 50,000-token document | $0.017per L2 task | $0.348per L2 task | $254.04per month | $5,080.80per month | −95.0 % |
| L3Agentic coding loop, 15 steps | $0.424per L3 task | $2.72per L3 task | $6,189.38per month | $39,726.60per month | −84.4 % |
Calculated Per month: 20 tasks an hour around the clock, 730 hours.
Prices USD per 1M tokens
| Price | Claude Haiku 5.5 | Claude Sonnet 5.5 |
|---|---|---|
| Input, per 1M tokens | $0.100 | $2.00 |
| Output, per 1M tokens | $0.500 | $10.00 |
| Price from | Provider's price list · source page Published | Provider's price list · source page Published |
| Read | · the United States | · the United States |
| Context window | 1,000,000 tokens | 1,000,000 tokens |
What can I use it for? six common tasks, our data checks
Quality on your task: not measured by Measured Lab yet.
| Task | Claude Haiku 5.5 | Claude Sonnet 5.5 |
|---|---|---|
| Answer customer messages | Fits on price and context | Fits on price and context |
| Pull data from invoices and documents with strict JSON and page images | Fits on price and context | Fits on price and context |
| Summarize documents and meetings | Fits on price and context | Fits on price and context |
| Translate content | Fits on price and context | Fits on price and context |
| Chat assistant on your website | Fits on price and context | Fits on price and context |
| Write and review code with tool calls | Fits on price and context | Fits on price and context |
| Tasks it fits | 6 of 6 | 6 of 6 |
Checks of our data for six common tasks: a published price, a context window and answer length for the task and, where the task needs them, strict JSON output, page images and tool calls; prices, cost a month and terms for each model on its model card. Compare models for your own task in the model picker.
Speed in the US Observed our test requests
In our test requests from the United States, the median time to the first answer token was 528 ms for Claude Haiku 5.5 (Direct API · Anthropic) and 961 ms for Claude Sonnet 5.5 (Direct API · Anthropic).
| Model and route | Time to first answer token, median | Output speed, median | Answers |
|---|---|---|---|
| Claude Haiku 5.5Direct API · Anthropic | 528 ms range 290 ms–7,547 ms | 221 tokens/s range 87.6 tokens/s–430 tokens/s | 115 answers on 23 dates |
| Claude Sonnet 5.5Direct API · Anthropic | 961 ms range 363 ms–8,537 ms | 115 tokens/s range 67.7 tokens/s–244 tokens/s | 115 answers on 23 dates |
The same short request to every model, sent from a measurement point in the United States; medians of successful answers on at least 2 different dates, latest on . How we measure