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Description

Claude Sonnet 5.5 is a general-purpose AI model from Anthropic built for everyday professional tasks, agentic coding, knowledge work, and fast iteration. It is the second model in the Claude 5.5 family and is intended to complement Claude Opus 5.5 by offering lower-cost performance on more clearly defined workloads. Anthropic reports that Sonnet 5.5 generates output more than 30% faster than Sonnet 5 and usually completes tasks with fewer tokens. Pricing remains $2 per million input tokens and $10 per million output tokens, with cache reads priced at $0.20 per million tokens. On Terminal-Bench 4.0, the model scores 70.6%, compared with 10.3% for Sonnet 5, while also posting sizable improvements on FrontierCode, CursorBench, and other coding benchmarks. Its knowledge-work results are also substantially stronger, including a GDPval-AA score of 1844 and an AA-Briefcase score of 1811, both close to Claude Opus 5.5. Anthropic says early testers found the model faster, more collaborative, more concise, and particularly strong at design-oriented work such as polished interfaces and presentation decks. The model supports adjustable effort levels so users can trade off speed and cost against more extended reasoning and checking. Claude Sonnet 5.5 is available through Claude apps, Claude Code, the Claude Platform, and major cloud providers including AWS, Google Cloud, and Microsoft Azure.

Description

Vello is an exceptional platform for engaging with AI, offering rapid, robust, and collaborative multi-player AI chat that consolidates leading models and human partners in one accessible location. It is compatible across web, mobile, and desktop interfaces, providing a swift, keyboard-driven experience that enhances productivity. By integrating models from OpenAI, Anthropic, Google, Facebook, Cohere, and its proprietary web and document models, Vello facilitates immediate research with accurate source citations, effortless document composition, editing, and code refinement. The platform's team spaces foster collaboration between humans and AI, enabling users to work collaboratively in shared environments and chat rooms to complete tasks efficiently. Additionally, users have the ability to craft various AI personas, train them using diverse file types (including PDF, DOCX, code, CSV), and deploy them either individually or within multi-persona chat rooms, resulting in intricate workflows through round-robin model responses. This flexibility allows for a dynamic and highly customizable approach to utilizing AI technologies in a multitude of applications.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Claude Yes 
Anything Yes 
CSS Yes 
Charlie Yes 
Cherry Studio Yes 
Claude Code Yes 
Clawd.run Yes 
Emergent Yes 
F# Yes 
Go Yes 
HTML Yes 
Meta AI No 
Microsoft Excel No 
Mistral AI No 
Muse Yes 
OpenTag Yes 
R Yes 
RubyMine Yes 
Shiori Yes 
Visual Studio Code Yes 

Integrations

Claude Yes 
Anything No 
CSS No 
Charlie No 
Cherry Studio No 
Claude Code No 
Clawd.run No 
Emergent No 
F# No 
Go No 
HTML No 
Meta AI Yes 
Microsoft Excel Yes 
Mistral AI Yes 
Muse No 
OpenTag No 
R No 
RubyMine No 
Shiori No 
Visual Studio Code No 

Pricing Details

$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 $0.20 per million tokens
Free Trial No 
Free Version No 

Pricing Details

$17 per month
Free Trial Yes 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Anthropic

Founded

2021

Country

United States

Website

claude.ai

Vendor Details

Company Name

Vello AI

Country

United States

Website

hello.vello.ai/

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