Claude Sonnet 5.5 Reviews & Ratings

Claude Sonnet 5.5

5.0 out of 5 stars

Ratings and Reviews 0 Ratings

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ease 0 out of 5 stars
features 0 out of 5 stars
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support 0 out of 5 stars

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Total 5 out of 5 stars
ease 5 out of 5 stars
features 5 out of 5 stars

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What is Pokee-Isaac?

The Pokee-Isaac text-only agentic model boasts an extraordinary context window that can handle up to 10 million tokens. Designed to support reasoning, planning, tool invocation, and the execution of large-scale tasks, this model is compact enough for deployment in a Virtual Private Cloud (VPC), on customer premises, on a workstation, or even directly on devices. As per Pokee, Isaac shows remarkable long-context performance on the RULER benchmarks, effectively managing token ranges from 256K to 10M and surpassing rivals in multi-needle retrieval assessments at 256K, 512K, and 1M tokens. Its agentic architecture is purposely crafted for dependable function calling, ensuring coherence over multiple interactions, operating in real-shell environments, and possessing the capability to discover and assimilate tools across live Multi-Cloud Platforms (MCP) servers. In rigorous evaluations conducted by Pokee, Isaac achieved the highest score on BFCL v4 and τ³-bench, while securing the second position in the Terminal-Bench 2.1 text-only subset and third in MCP-Atlas. Additionally, security assessments utilizing the DTAP method revealed that it attained the lowest overall attack success rate in the comparative study, all the while showcasing strong performance on benign tasks. This amalgamation of capabilities emphasizes Isaac's role as a flexible and secure model suitable for a variety of operational contexts, reinforcing its position as a leader in the field. Its adaptability and performance metrics make it an invaluable asset for organizations seeking advanced text processing solutions.

What is Claude Sonnet 5.5?

Claude Sonnet 5.5 is Anthropic’s faster, lower-cost Claude 5.5 model for well-scoped professional work, software development, agentic workflows, and content creation. Anthropic positions it below Claude Opus 5.5 for the most complex open-ended work, but says it can perform comparably on some benchmarks when run at higher effort settings. The model delivers a particularly large improvement in coding, including a 70.6% result on Terminal-Bench 4.0, 46.2% on FrontierCode at Max effort, and 55.5% on CursorBench 4.0. It also scores 1844 on GDPval-AA, 1811 on AA-Briefcase, 64.5% on Humanity’s Last Exam with tools, and 80.1% on OSWorld 2.1 partial. Anthropic reports that Sonnet 5.5 is better at long-horizon work, image understanding, collaboration, and codebase comprehension than Sonnet 5. The company also highlights design-oriented improvements, including the ability to produce polished documents, spreadsheets, slides, and user interfaces with less editing. Sonnet 5.5 generates output more than 30% faster than its predecessor and is Anthropic’s fastest Sonnet model to date. Although its listed token prices are unchanged from Sonnet 5, Anthropic says greater token efficiency can reduce per-task cost by up to 30%. Pricing is $2 per million input tokens, $10 per million output tokens, $2.50 per million cache-write tokens, and $0.20 per million cache-read tokens. The model includes cyber safeguards, biology safeguards, reasoning-extraction protections, and preserved-thinking controls, with some higher-risk cyber requests falling back to Sonnet 5. Claude Sonnet 5.5 is available with zero data retention across Claude products, the Claude Platform, AWS, Google Cloud, and Microsoft Azure under the model name claude-sonnet-5-5.

Media

Media

Integrations Supported

Model Context Protocol (MCP)

Integrations Supported

Model Context Protocol (MCP)
AgentSea
Amp
C#
CSS
Cherry Studio
Claude Cowork
DataGrip
F#
Kubernetes
Oxen.ai
PhpStorm
PowerShell
Python
Snowflake
Snowflake Cortex AI
Trinity-Large-Thinking
TypeScript
XML
Yonoo

API Availability

Has API

API Availability

Has API

Pricing Information

$0.15 per 1M tokens

Pricing Information

$2 per 1M tokens (input)
$2 per million input tokens and $10 per million output tokens.

Cache reads, which account for most costs in agentic and coding workloads, are priced at just $0.10 per million tokens

Supported Platforms

SaaS
On-Prem

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Pokee AI

Date Founded

2024

Company Location

United States

Company Website

console.pokee.ai/model

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

claude.ai

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

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