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Description

Ante is a fully autonomous coding assistant that operates directly within your terminal environment and organizes itself independently. This compact Rust binary, approximately 15MB in size, has no external runtime dependencies and can interface with over 12 providers or function entirely offline using local GGUF models. It is consistently evaluated in a public setting, holding the top position as the same-model agent on Terminal-Bench 2.1, with every performance outcome linked to a downloadable and auditable build for transparency and verification. This ensures users have access to reliable and high-performing coding support whenever needed.

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.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

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Screenshots View All

Integrations

Amp No 
C++ No 
CSS No 
Claude No 
Claude Max No 
Devin Desktop No 
Doraverse No 
IntelliJ IDEA No 
Lovable No 
Orchids No 
PHP No 
PrivatClaw No 
ReSharper No 
Scala No 
Simtheory No 
TypeScript No 
Use AI No 
Verdent No 
Viktor No 
YAML No 

Integrations

Amp Yes 
C++ Yes 
CSS Yes 
Claude Yes 
Claude Max Yes 
Devin Desktop Yes 
Doraverse Yes 
IntelliJ IDEA Yes 
Lovable Yes 
Orchids Yes 
PHP Yes 
PrivatClaw Yes 
ReSharper Yes 
Scala Yes 
Simtheory Yes 
TypeScript Yes 
Use AI Yes 
Verdent Yes 
Viktor Yes 
YAML Yes 

Pricing Details

$0
Free Trial No 
Free Version Yes 

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 $0.10 per million tokens
Free Trial No 
Free Version No 

Deployment

Web-Based No 
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 No 
Mac No 
Linux No 
Chromebook No 

Customer Support

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

Customer Support

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

Types of Training

Training Docs No 
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

Antigma Labs

Founded

2026

Country

China

Website

antigma.ai

Vendor Details

Company Name

Anthropic

Founded

2021

Country

United States

Website

claude.ai

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