Anthropic: Claude Sonnet 4

Anthropic: Claude Sonnet 4 is a large language model from Anthropic. It costs $3.00 per million input tokens and $15.00 per million output tokens. Its context window is 200K tokens.

ReasoningTool callingPrompt cachingimage inputfile input

Input / 1M tokens: $3.00
Output / 1M tokens: $15.00
Cached input / 1M: $0.300
Context window: 200K

This model also charges $0.01 per search request

That is $10.00 per 1,000 requests, billed on top of the token prices above. On a typical 1,000-in / 500-out exchange the tokens cost $0.01, so the search fee is 95% on top. Per-token rankings elsewhere ignore this entirely.

Who serves it cheapest

1 hosts serve Claude Sonnet 4. Same weights, same API - the price difference is pure margin and routing.

Providers serving Anthropic: Claude Sonnet 4, cheapest first
Provider	Input / 1M	Output / 1M	Context	Throughput	Uptime 24h
Amazon BedrockCheapest	$3.00	$15.00	200K	-	100.0%

Benchmarks

Independent scores published alongside the catalogue.

Intelligence index: 18.9
Coding index: 37.6

About Claude Sonnet 4

Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...

Specifications

Anthropic: Claude Sonnet 4 specifications
Model ID	`anthropic/claude-sonnet-4`
Provider	Anthropic
Context window	200K tokens
Max output	64K tokens
Input modalities	image, text, file
Output modalities	text
Knowledge cutoff	2025-01-31
Open weights	No
Released	May 22, 2025

Cheaper alternatives

Models that cost less than Claude Sonnet 4 while keeping at least half its context window and every input modality it supports.

GPT-5.4

$2.50 in · $15.00 out

1.1× cheaper

GPT-5.3-Codex

$1.75 in · $14.00 out

1.2× cheaper

GPT-5.2 Chat

$1.75 in · $14.00 out

1.2× cheaper

GPT-5.2

$1.75 in · $14.00 out

1.2× cheaper

GPT-5.6 Terra Pro

$2.00 in · $12.00 out

1.3× cheaper

Frequently asked

How much does Anthropic: Claude Sonnet 4 cost?

$3.00 per million input tokens and $15.00 per million output tokens. Cached input reads cost $0.300 per million tokens.

What is the context window of Anthropic: Claude Sonnet 4?

200K tokens, with up to 64K tokens of output per request.

Does Anthropic: Claude Sonnet 4 have extra fees beyond per-token pricing?

Yes. Anthropic: Claude Sonnet 4 charges $0.01 per search request - $10.00 per 1,000 requests - on top of $3.00 per million input tokens and $15.00 per million output tokens. On a typical 1,000-input / 500-output exchange the search fee alone is 95% on top.

Confirm against the source: Anthropic official pricing.