GVGanivra

API price comparison · Updated

Claude Sonnet 5.5 vs Claude Haiku 5.5 pricing

Quick answer

Claude Sonnet 5.5 costs $2.00 per million input tokens and $10.00 per million output tokens; Claude Haiku 5.5 costs $0.10 and $0.50. For an agent task (80,000 input tokens, 60,000 of them cached, and 6,000 output), Claude Sonnet 5.5 costs $0.106 and Claude Haiku 5.5 $0.0056: Claude Sonnet 5.5 costs 19× as much.

Compare your monthly cost on Claude Sonnet 5.5 and Claude Haiku 5.5

Estimated monthly cost
Claude Sonnet 5.5$1,100$0.011 per request
Claude Haiku 5.5$55.00$0.0006 per request

Claude Haiku 5.5 costs 95% less for this workload. Excludes cache writes, tools and taxes.

Claude Sonnet 5.5 vs Claude Haiku 5.5 prices per million tokens

PriceClaude Sonnet 5.5Claude Haiku 5.5
Model IDclaude-sonnet-5-5claude-haiku-5-5
Input$2.00$0.10
Cache read$0.10$0.01
Cache write$2.50$0.125
Output$10.00$0.50
Batch in / out$1.00 / $5.00$0.05 / $0.25
Long promptsSame rateOver 100,000: $0.50 / $2.50
Scheduled changeNone announcedNone announced
StatusAvailableAvailable

Prices for each provider’s own API, from Anthropic’s pricing page. The lower price in each row is highlighted. Ganivra uses these same rates to price Claude Sonnet 5.5 and Claude Haiku 5.5 calls.

What one request costs on Claude Sonnet 5.5 and Claude Haiku 5.5

Worked out from the prices above at standard rates, with no Batch discount. Long-prompt rates apply where a model has them.

RequestClaude Sonnet 5.5Claude Haiku 5.5Per 1,000 requestsDifference
Chat reply3,000 input tokens, 500 output$0.011$0.0006$11.00 / $0.550Claude Sonnet 5.5 costs 20× as much
Document summary30,000 input tokens, 1,500 output$0.075$0.0037$75.00 / $3.75Claude Sonnet 5.5 costs 20× as much
Agent task80,000 input tokens (60,000 cached), 6,000 output$0.106$0.0056$106 / $5.60Claude Sonnet 5.5 costs 19× as much
Long document300,000 input tokens, 2,000 output$0.620$0.155$620 / $155Claude Sonnet 5.5 costs 4× as much

What changes which one costs less

Prompt caching
Cache reads cost $0.10 per million, 5% of the input price on Claude Sonnet 5.5, and $0.01 per million, 10% of the input price on Claude Haiku 5.5. The more of each prompt you reuse, the more this decides the bill.
Cache writes
Claude Sonnet 5.5 charges $2.50 per million tokens written to cache. Claude Haiku 5.5 charges $0.125 per million tokens written to cache.
Long prompts
On Claude Sonnet 5.5, one rate at any prompt length. On Claude Haiku 5.5, prompts over 100,000 tokens cost $0.50 input and $2.50 output for the whole request. A 300 prompt costs $0.620 on Claude Sonnet 5.5 and $0.155 on Claude Haiku 5.5.
Batch API
Claude Sonnet 5.5 costs 50% less through the Batch API: $1.00 input and $5.00 output. Claude Haiku 5.5 costs 50% less through the Batch API: $0.05 input and $0.25 output.
Quality and retries
Price is half the decision. A cheaper model that needs more retries, longer prompts or a human fix can cost more per finished task.

Compare them on your own customers, not a sample request.

Ganivra prices every Claude Sonnet 5.5 and Claude Haiku 5.5 call you make and adds it up by customer, feature and workflow, next to what each customer pays. Switch a workflow and see what it did to each customer’s margin.

Start free 14-day trial

Claude Sonnet 5.5 vs Claude Haiku 5.5 pricing questions

Is Claude Sonnet 5.5 cheaper than Claude Haiku 5.5?

Per million tokens, Claude Sonnet 5.5 costs $2.00 input and $10.00 output, and Claude Haiku 5.5 $0.10 input and $0.50 output. For an agent task (80,000 input tokens, 60,000 of them cached, and 6,000 output), Claude Sonnet 5.5 costs 19× as much: $106 against $5.60 per 1,000 tasks.

How much does Claude Sonnet 5.5 cost per million tokens?

$2.00 input and $10.00 output per million tokens on Anthropic's API, with cached input at $0.10 and Batch at $1.00 input and $5.00 output. The rate is the same at any prompt length.

How much does Claude Haiku 5.5 cost per million tokens?

$0.10 input and $0.50 output per million tokens on Anthropic's API, with cached input at $0.01 and Batch at $0.05 input and $0.25 output. Prompts over 100,000 tokens cost $0.50 input and $2.50 output.

Which is cheaper for long prompts, Claude Sonnet 5.5 or Claude Haiku 5.5?

For a 300,000 input tokens, 2,000 output request, Claude Sonnet 5.5 costs $0.620 and Claude Haiku 5.5 $0.155: Claude Sonnet 5.5 costs 4× as much. On Claude Sonnet 5.5, one rate at any prompt length; on Claude Haiku 5.5, prompts over 100,000 tokens cost $0.50 input and $2.50 output for the whole request.

How do I compare Claude Sonnet 5.5 and Claude Haiku 5.5 on my own traffic?

Record what each call actually used, then price the same usage on both models. Ganivra does this from your recorded calls: it shows what each customer, feature and workflow would cost on Claude Sonnet 5.5 and on Claude Haiku 5.5, next to what each customer pays you.

Every model on one page: Claude Sonnet 5.5 pricing · Claude Haiku 5.5 pricing · all model price comparisons · all supported models.