---
title: "Claude Sonnet 5.5 API pricing: ⁨$2⁩ in, ⁨$10⁩ out · DotsAgent"
description: "Claude Sonnet 5.5 by Anthropic: price per million input, cached and output tokens, context window, agent features and what a real agent task costs on it."
url: https://dotsagent.io/models/claude-sonnet-5-5
---

[Anthropic](https://dotsagent.io/providers/anthropic)

· Workhorse

# Claude Sonnet 5.5 API pricing and specs

Anthropic's mid-priced model, with five breaking changes from Sonnet 5, including thinking that can be limited to the gaps between tool calls.

Input

$2

Cached input

$0.20

Output

$10

US dollars per million tokens, standard tier, short-prompt rate

Default effort is high, which spends more output tokens than Opus 5.5's medium default; lower it for routine steps. Cache writes cost $2.50 per million for 5 minutes.

## Spec sheet

- **API model string**: `claude-sonnet-5-5`
- **Provider**: [Anthropic](https://dotsagent.io/providers/anthropic)
- **Context**: 1M tokens
- **Max output**: 128K tokens
- **Released**: September 28, 2026
- **Batch API**: 50% off, results within hours
- **Documented agent features**: Tool callingComputer useAdjustable reasoning

## What a task costs

Four reference workloads priced at this model's list rates, with caching applied after the first call. Your numbers will differ; the calculator lets you change every assumption.

| Workload | Per task | Per 1,000 tasks |
| --- | --- | --- |
| Support bot 4 calls, short tool lookups | $0.056 | $56 |
| Coding agent 30 calls, files and test output | $1.98 | $1,977 |
| Browser agent 25 calls, screenshots and page text | $1.40 | $1,397 |
| Research agent 15 calls, long search results | $1.32 | $1,323 |

[Change the assumptions](https://dotsagent.io/cost#model=claude-sonnet-5-5)

## Other Anthropic models

- [Claude Fable 5.1](https://dotsagent.io/models/claude-fable-5-1): $10 / $50

- [Claude Opus 5.5](https://dotsagent.io/models/claude-opus-5-5): $4 / $20

- [Claude Haiku 4.5](https://dotsagent.io/models/claude-haiku-4-5): $1 / $5

## Similar cost elsewhere

Models from other providers whose cost on the 30-step coding workload is closest to this one.

- [Gemini 3.1 Pro Preview](https://dotsagent.io/models/gemini-3-1-pro-preview): $2.05 per coding task

- [GPT-6.1 Sol](https://dotsagent.io/models/gpt-6-1-sol): $1.69 per coding task

- [GLM-5.3](https://dotsagent.io/models/glm-5-3): $1.63 per coding task

- [Qwen3.8-Max](https://dotsagent.io/models/qwen3-8-max): $1.63 per coding task

## Sources

1. [platform.claude.com](https://platform.claude.com/docs/en/about-claude/models/overview)/docs/en/about-claude/models/overview
2. [platform.claude.com](https://platform.claude.com/docs/en/about-claude/pricing)/docs/en/about-claude/pricing
3. [platform.claude.com](https://platform.claude.com/docs/en/release-notes/overview)/docs/en/release-notes/overview

Independent reference for people who build AI agents. Not affiliated with any vendor named here.

© 2026 DotsAgent · Facts checked October 1, 2026