Anthropic

Claude Sonnet 4.5

Name: Claude Sonnet 4.5
Brand: Anthropic

Canonical ID: anthropic/claude-sonnet-4-5-20250929

More Anthropic models More claude-sonnet-4-5 family models

Balanced Claude model for coding, analysis, agent workflows, and cost control

Reasoning: Yes Tool use: Yes

Overview

text image pdf

Provider: Anthropic
Family: claude-sonnet-4-5
Release date: 2025-09-29
Last updated: 2025-09-29
Input modalities: text, image, pdf
Output modalities: text

Pricing and Limits

Token pricing

Input: $3/1M
Output: $15/1M
Cached input: N/A

Context and output

Context window: 200,000
Max output tokens: 64,000
Qualified ID: anthropic/claude-sonnet-4-5-20250929

Model Summary

Claude Sonnet 4.5 is a model listing in the Anthropic provider catalog. It is categorized under the claude-sonnet-4-5 family.

The model supports text, image, pdf modalities across input/output paths. Reported context capacity is 200,000. Pricing is listed at $3/1M input and $15/1M output.

Same Family: claude-sonnet-4-5

Comparable models in the same family across providers.

Browse family

Model	Provider	Context	Input	Output	Flags
Anthropic: Claude Sonnet 4.5 (20250929) helicone/claude-sonnet-4-5-20250929	Helicone	200,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 opencode/claude-sonnet-4-5	OpenCode Zen	1,000,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 requesty/anthropic/claude-sonnet-4-5	Requesty	1,000,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 qihang_ai/claude-sonnet-4-5-20250929	QiHang	200,000	$0.43/1M	$2.14/1M	Reasoning Tools
Claude Sonnet 4.5 perplexity_agent/anthropic/claude-sonnet-4-5	Perplexity Agent	200,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 azure/claude-sonnet-4-5	Azure	200,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 abacus/claude-sonnet-4-5-20250929	Abacus	200,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 aihubmix/claude-sonnet-4-5	AIHubMix	200,000	$3.3/1M	$16.5/1M	Reasoning Tools
Claude Sonnet 4.5 azure_cognitive_services/claude-sonnet-4-5	Azure Cognitive Services	200,000	$3/1M	$15/1M	Reasoning Tools
Claude Sonnet 4.5 firmware/claude-sonnet-4-5	Firmware	200,000	$3/1M	$15/1M	Reasoning Tools

Claude Sonnet 4.5

Overview

Pricing and Limits

Token pricing

Context and output

Model Summary

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Same Family: claude-sonnet-4-5