Claude Haiku 5.5 vs Claude Sonnet 5.5
A plain comparison: what they do, what they cost and which to pick for your task.
In short
Haiku 5.5 is twenty times cheaper and faster, enough for simple questions and translations. Sonnet 5.5 is for writing, code and hard tasks.
Claude Haiku 5.5 is cheaper: an answer costs 20 times less than with Claude Sonnet 5.5.
Side by side
| Claude Haiku 5.5 | Claude Sonnet 5.5 | |
|---|---|---|
| Maker | Anthropic, USA | Anthropic, USA |
| Type | fast and cheap | everyday |
| Good for | The fastest and cheapest Claude. For short answers, translations and simple questions. | Claude’s everyday model. Natural writing and good code, the best value of the line. |
| Official, $ per 1M | $0.1 / $0.5 | $2 / $10 |
| Freepay rate | ×0.05 / ×0.25 | ×1 / ×5 |
| Maker’s subscription | Claude Pro costs about $20 a month. | Claude Pro costs about $20 a month. |
Prices: your text / answer. The “Freepay rate” shows how many balance tokens a model spends per token of its own; Claude Sonnet 5.5 is ×1.
Which to pick for the task
| Task | Better |
|---|---|
| Simple questions | Claude Haiku 5.5 |
| Translation | Claude Haiku 5.5 |
| Writing | Claude Sonnet 5.5 |
| Code | Claude Sonnet 5.5 |
| Price | Claude Haiku 5.5 |
The best way to choose is to ask both models the same question. On Freepay you do it in one chat, switching the model in the input field.
About Claude Haiku 5.5
The fastest and cheapest Claude. For short answers, translations and simple questions. Claude is made by Anthropic, a US company. People pick it for natural writing, strong code and the way it handles long documents. More about Claude Haiku 5.5.
About Claude Sonnet 5.5
Claude’s everyday model. Natural writing and good code, the best value of the line. More about Claude Sonnet 5.5.
Frequently asked questions
Which is better, Claude Haiku 5.5 or Claude Sonnet 5.5?
Haiku 5.5 is twenty times cheaper and faster, enough for simple questions and translations. Sonnet 5.5 is for writing, code and hard tasks.
Which is cheaper, Claude Haiku 5.5 or Claude Sonnet 5.5?
Claude Haiku 5.5 is cheaper: an answer costs 20 times less than with Claude Sonnet 5.5. Official prices per 1M tokens: Claude Haiku 5.5 $0.1 / $0.5, Claude Sonnet 5.5 $2 / $10. On Freepay both are 10x cheaper.
Can I use Claude Haiku 5.5 and Claude Sonnet 5.5 in one place?
Yes. On Freepay both models are in one chat, you switch them in the input field, and the balance is shared.
Do I need two subscriptions for Claude Haiku 5.5 and Claude Sonnet 5.5?
No. On claude.ai you need an account and a phone number, the free plan has tight message limits, and Claude Pro is a monthly subscription. On Freepay one key covers both, with no subscription.