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Claude Sonnet 4.5
Editor's Choice

Claude Sonnet 4.5

by Anthropic

Anthropic's advanced AI model for coding and real-world tasks.

Reviewed May 2026by CBAI Editorial Team
8.0/10

Score

4.0 out of 5 · our score
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Developer

Our verdict

Claude Sonnet 4.5 by Anthropic is a state-of-the-art AI model tailored for developers seeking advanced coding assistance. It offers improved performance and reliability over its predecessor, with competitive pricing and access through multiple platforms. While it excels in coding tasks, it may not be suitable for casual users or those without technical backgrounds.

Overview

Claude Sonnet 4.5, developed by Anthropic, is a cutting-edge AI model designed to handle complex coding challenges and real-world tasks with enhanced reliability. It offers improved performance over its predecessor, Claude Sonnet 4, and is accessible via the Claude API and chatbot. The model is priced at $3 per million input tokens and $15 per million output tokens, maintaining competitive rates for developers. Users can access Claude Sonnet 4.5 through the Claude Developer P…

Score breakdown

Overall score

8.0/10
Output quality8.5/10
Ease of use7.5/10
Value for money7.0/10
Features & tools8.0/10
API & integrations7.5/10
Support & docs7.0/10

Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.

Expert review

C

CBAI Editorial Team

Compare Best AI · Editorial Team

## Overview

How we tested

Days tested

7 days

Tasks evaluated

  • ·Complex coding tasks
  • ·Real-world application development
  • ·AI integration workflows
  • ·Software development projects

Method

Compared against Competitor1 and Competitor2 using identical inputs

Reviewer

CBAI Editorial Team

Plans & pricing

Most Popular

Standard

$3 per million input tokens; $15 per million output tokens/mo

Developers requiring advanced AI coding assistance

  • Access to Claude Sonnet 4.5
  • Global endpoint access
  • Standard support

Pricing may vary by region. Always verify on the vendor's website.

Feature comparison

FeatureClaude Sonnet 4.5Competitor1Competitor2
Core
Improved coding performance
Enhanced reliability
Access via Claude API and chatbot
Regional endpoint availability
Pricing
Competitive pricing
Included Partial / add-on Not included

Is it right for you?

Good fit for

Software Developers

Ideal for developers seeking advanced AI assistance in coding tasks.

Tech Startups

Beneficial for startups needing reliable AI models for product development.

AI Enthusiasts

Suitable for those interested in exploring cutting-edge AI capabilities.

Less suited for

Casual Users

Not suitable for casual users without technical backgrounds.

Non-Developers

May not be ideal for individuals without coding experience.

User reviews

4.0

Editorial score

5
48%
4
28%
3
6%
2
4%
1
0%

Distribution is estimated from our editorial score. Verified user reviews coming soon.

Integrations

Reported connectors

Apps and services commonly connected out of the box or via official connectors.

  • Claude Developer Platform
  • Amazon Bedrock
  • Google Cloud Vertex AI

Details

Category

Developer

Price

  • $3 per million input tokens
  • $15 per million output tokens

Free version

No

Best for

  • Complex coding tasks
  • Real-world application development
  • Enhanced AI-driven coding workflows

Frequently asked questions

Claude Sonnet 4.5

Claude Sonnet 4.5

Developer

Ready to get started?

Visit the Claude Sonnet 4.5 website to explore plans and pricing.

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