Claude Sonnet 5.5: API pricing, context window and capabilities

Prices from official vendor price lists · October 2026

Claude Sonnet 5.5 costs $2 per 1M input tokens and $10 per 1M output tokens, with a 1M context window. Frontier tier: dearer than 81% of this rating, with Claude Haiku 4.5 as the nearest cheaper Anthropic option. Recorded for vision, reasoning, adjustable thinking.

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Capabilities

API $/1M (in / out)

$2 / $10

Context window

1M tokens

Price / mo

API only

Overview Reviews

Claude Sonnet 5.5 is an AI model from Anthropic, priced at $2 input and $10 output per 1M tokens. That places it in the frontier tier of this rating — dearer than 81% of the 205 priced models listed.

It holds 1M tokens in a single conversation, enough for a full codebase or a contract bundle in one pass. Capabilities recorded in this rating: text & chat, vision, reasoning, adjustable thinking, tool calling. Access is through the API rather than a consumer subscription.

API price$2 / $10per 1M tokens, in / out

Context1M tokenstokens per conversation

VendorAnthropicall models from this vendor

TierFrontierdearer than 81% of models

Cost calculator

1M tokens/mo10M tokens/mo50M tokens/mo200M tokens/mo

Standard$8.00~~AED 29 per month~~

With batch −50%$4.00~~AED 15 per month~~

With caching on input$7.55~~AED 28 per month~~

Standard$80.00~~AED 294 per month~~

With batch −50%$40.00~~AED 147 per month~~

With caching on input$75.50~~AED 277 per month~~

Standard$400~~AED 1,469 per month~~

With batch −50%$200~~AED 735 per month~~

With caching on input$378~~AED 1,386 per month~~

Standard$1,600~~AED 5,876 per month~~

With batch −50%$800~~AED 2,938 per month~~

With caching on input$1,510~~AED 5,545 per month~~

Assumes a 1:3 input-to-output ratio, which is typical for chat and generation. Dirham figures use 3.6725 per dollar. Batch and caching discounts apply where the vendor offers them.

Compared with alternatives

How Claude Sonnet 5.5 sits against its neighbours in this rating. Tap a card to open that model.

$3.36 / $10.081M tokens

Good and poor fit

Good fit

Multi-step analysis, planning and code review, where the first plausible answer is often wrong.
Reading screenshots, charts, scanned documents and photos.
Whole codebases, contract bundles and long transcripts in a single pass.

Poor fit

Classification, routing and short summaries — a small model does these identically for a fraction of the price.

Related filters

Text & chat234 models for text generation and chat

Vision159 models that read images

Reasoning175 models that think before answering

Adjustable thinking85 models with a reasoning depth dial

Tool calling172 models that call your functions

Anthropic13 models from this vendor

All 245 modelsThe full rating with filters and prices

Frequently asked questions

How much does Claude Sonnet 5.5 cost?

$2 / $10 per 1M tokens, input and output. In dirhams that is roughly AED 7.34 per 1M input tokens. Batch processing halves it where the vendor offers it.

What is the context window of Claude Sonnet 5.5?

1M tokens in a single conversation.

What can Claude Sonnet 5.5 do?

In this rating it is recorded with: text & chat, vision, reasoning, adjustable thinking, tool calling, structured JSON output, long context 1M+, prompt caching, batch API, multilingual, proprietary API.

Is Claude Sonnet 5.5 a good choice?

It depends on the job. See the good-fit and poor-fit lists above, and compare against the neighbouring models before committing.

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